TLE Overview. FlexRay Transceiver

Transcription

1 1 Overview Feaures Complian wih he FlexRay Elecrical Physical Layer Specificaion version and ISO Opimized for ime riggered in-vehicle neworks wih daa ransmission PG-TSSOP-14 raes from 1 Mbi/s up o 10 Mbi/s Suppors minimum bi imes down o 60 ns Auomaic volage adapaion on he digial inerface pins Bus failure proecion and error deecion Very high ESD robusness; ± 8 kv according o IEC Opimized for high Elecromagneic Compaibiliy (EMC); Very low emission and high immuniy o inerference Green Produc (RoHS complian) PG-TSON-14 AEC Qualified Modes of Operaion and Wake-up Feaures: power sandby operaion mode wih very low quiescen curren consumpion Remoe wake-up deecion via wake-up paerns and a dedicaed wake-up frame Proecion and Diagnosic Shor-circui proecion on he bus pins Overemperaure proecion Undervolage monioring of he V CC power supply and he V IO logic volage level reference Error and wake-up indicaion on he ERRN oupu Saus regiser for deailed diagnosic informaion hrough a simplified SPI inerface Inegraed Bus Guardian inerface wih enhanced safey feedback pah Bus pins high impedance when device unpowered Applicaions Engine Managemen Auonomous Driving Radar Gaeway Daa Shee 1 Rev

2 Overview Descripion The TLE9222 FlexRay ransceiver is designed for daa ransmission raes from 1 Mbi/s up o 10 Mbi/s according o he FlexRay Elecrical Physical Layer Specificaion The Bus Driver (BD) realizes he physical inerface beween a FlexRay node and he communicaion channel. I provides differenial ransmi and receive capabiliy o he bus, allowing he node bidirecional ime-muliplexed binary daa sream ransfer. In addiion o ransmi and receive funcions, he TLE9222 provides low power sandby operaion, supply volage monioring (undervolage deecion) as well as bus failure deecion and represens an ESDproecion barrier beween he bus and he ECU. The TLE9222 suppors he following FlexRay funcional classes: Funcional class Bus driver - bus guardian inerface Funcional class Bus driver logic level adapaion Funcional class Bus driver remoe wakeup Funcional class Bus driver increased volage ampliude ransmier In BD_Sandby mode he quiescen curren is decreased o a minimal level while sill being able o deec wake-up requess on he bus. Fail Safe feaures, like failure deecion and he power supply monioring, combined wih an easy accessible saus regiser suppor requiremens for safey relaed applicaions wih exended diagnosic feaures. The TLE9222 is inernally proeced agains ransiens on he bus pins, BP and BM. This makes i possible o use he TLE9222 for implemening ECUs wihou addiional exernal bus proecion circuiry while fulfilling ESD and ISO pulse requiremens of car manufacurers. Wih is excellen EMC performance he TLE9222 provides a very high immuniy agains RF disurbances over a broad frequency range and ransmis only a minimal level of elecromagneic emission ono he bus. The TLE9222 is inegraed in a RoHS complian PG-TSSOP-14 and PG-TSON-14 package. Using he laes Infineon Smar Power Technology i is especially ailored o wihsand he harsh condiions of he auomoive environmen and qualificaion according o he AEC-Q100 sandard. Type Package Marking TLE9222PX PG-TSSOP TLE9222LC PG-TSON Daa Shee 2 Rev. 1.3

3 Table of conens 1 Overview Table of conens Block diagram Pin configuraion Pin assignmen Pin definiions and funcions Funcional descripion Operaion modes BD_Normal mode BD_Sandby mode BD_Off condiion Communicaion conroller inerface Bus guardian inerface Hos inerface Power supply inerface V CC undervolage deecion V IO undervolage deecion Power-up and power-down Remoe wake-up Bus wake-up paerns Wake-up by payload Fail safe funcions and flags Overemperaure deecion Bus error deecor RxD-TxD compare Bus overcurren Transmier ime-ou V IO undervolage flag SPI-error flag Error flag Mode flags SPI inerface and saus regiser Read-ou procedure General produc characerisics Absolue maximum raings Funcional range Thermal resisance Elecrical characerisics Funcional device characerisics Diagrams Applicaion informaion ESD robusness according o IEC Bus inerface simulaion model parameer Applicaion example Daa Shee 3 Rev. 1.3

4 7.4 Implemenaion of ECU funcional safey conceps Minimizing ECU curren consumpion hrough BD_Sandby mode Furher applicaion informaion Package oulines Revision hisory Daa Shee 4 Rev. 1.3

5 Block diagram 2 Block diagram Transmier Bus Guardian Inerface 5 BGE Bus-Failure- Deecor Sae Machine Hos Inerface V IO 10 6 ERRN STBN BP BM Receiver Digial Logic Failure Logic Communicaion Conroller Inerface V IO RxD TxEN TxD 8 SDO Wake-Up Deecor SPI Inerface 9 7 SCSN SCLK V CC 14 Power Supply Inerface V IO 1 Volage Monior 11 GND TLE9222_BLOCKDIAGRAM_V02 Figure 1 Block diagram Daa Shee 5 Rev. 1.3

6 Pin configuraion 3 Pin configuraion 3.1 Pin assignmen V IO 1 14 V CC V IO 1 14 V CC TxD 2 13 BP TxD 2 13 BP TxEN 3 12 BM TxEN 3 12 BM RxD 4 11 GND RxD 4 11 GND BGE 5 10 ERRN BGE 5 10 ERRN STBN 6 9 SCSN STBN 6 9 SCSN SCLK 7 8 SDO SCLK 7 8 SDO Figure 2 Pin configuraion 3.2 Pin definiions and funcions Pin Symbol Funcion 1 V IO Digial Reference Volage; Digial reference volage supply for he logic inpu and oupu pins, 100 nf decoupling capacior o GND recommended. 2 TxD Transmi Daa Inpu; Inegraed pull-down o GND. 3 TxEN Transmier Enable No Inpu; Logical low o enable he ransmier oupu sage, Inegraed pull-up o V IO. 4 RxD Receive Daa Oupu; Oupu volage level adaped o he volage level of V IO. 5 BGE Bus Guardian Enable Inpu; Logical high o enable he ransceiver oupu sage, Inegraed pull-down o GND. 6 STBN Sandby No Mode Conrol Inpu; Digial inpu for mode selecion, logical high for BD_Normal mode, Inegraed pull-down o GND. 7 SCLK SPI Clock Inpu; Inegraed pull-down o GND. 8 SDO SPI Daa Oupu; 9 SCSN SPI Chip Selec No Inpu; Inegraed pull-up o V IO. Daa Shee 6 Rev. 1.3

7 Pin configuraion Pin Symbol Funcion 10 ERRN Error No Diagnosis Oupu; Logical low in failure cases or when wake-up paern deeced. 11 GND Ground; 12 BM Bus Line Minus; Negaive inpu / oupu erminal of he FlexRay bus. 13 BP Bus Line Plus; Posiive inpu / oupu erminal of he FlexRay bus. 14 V CC Supply Volage; Transceiver 5V supply volage, 100 nf decoupling capaciors o GND recommended. Daa Shee 7 Rev. 1.3

8 Funcional descripion 4 Funcional descripion The TLE9222 realizes he physical inerface beween he FlexRay node and he communicaion channel. Differenial ransmi and receive capabiliy o he FlexRay bus is provided, allowing he node bidirecional ime muliplexed binary daa sream ransfer. The differenial bus volage is measured beween wo signal lines, denoed BP (Bus Plus) and BM (Bus Minus), defined as ubus = ubp - ubm. Three differen bus saes are defined for he FlexRay bus; Idle, Daa_0 and Daa_1. For he Idle sae no differenial volage is driven o BP or o BM. The common mode bus biasing level will depend on he operaion mode of all nodes on he bus. For he Daa_1 sae a posiive differenial volage is driven beween BP and BM, whereas for he Daa_0 sae a negaive differenial volage is driven beween BP and BM. 4.1 Operaion modes The TLE9222 suppors wo funcional operaion modes, BD_Normal mode and BD_Sandby mode. In addiion, he BD_Off condiion describes he behavior of he TLE9222 when unsupplied. Mode ransiions of he TLE9222 are riggered by hos commands, undervolage evens and during power-up / -down, see Figure 3 and Table BD_OFF BD_Sandby BD_Normal TLE9222_OPERATION_MODES_V01 Figure 3 Operaion mode sae diagram Table 1 Operaion mode ransiions Nr Reason for ransiion Commen 1 Wake-up deecion 2 Power-on deecion Supply volage sufficienly supplied via V CC afer being unpowered. 3 Undervolage deecion Afer V CC and / or V IO undervolage deecion, BD_Sandby mode is forced. 4 Hos command Triggered by hos command. 5 Undervolage recovery Undervolage recovery while hos command requess BD_Normal mode. 6 Power-off Supply volage falls below he power-on hreshold. Daa Shee 8 Rev. 1.3

9 Funcional descripion BD_Normal mode In BD_Normal mode all inerfaces and funcions of he TLE9222 are in operaing condiion. The communicaion conroller inerface is fully acive; he RxD oupu reflecs he daa on he bus pins, he TxD drives he daa o he ransmier and he TxEN inpu enables or disables he ransmier. When he ransmier is acivaed, fail safe funcionaliy like he ransmier ime-ou, overemperaure deecion and bus error deecion are also enabled. The bus biasing is conneced o V CC / 2 via he inernal common mode resisors. Wih he RxEN flag in he saus regiser he bus saes idle or acive can be read ou hrough he SPI inerface. The hos inerface is acive and fully funcional, as well as saus regiser read-ou on he SPI inerface. Through he bus guardian inerface, he ransmier can be acivaed or disabled. The wake-up deecor is acive, bu received wake-up informaion is no flagged while in BD_Normal mode. The power supply inerface including volage monior on boh V CC and V IO is acive. Undervolage evens are signalled on he ERRN oupu and in he saus regiser, and rigger a mode ransiion o BD_Sandby mode. BD_Normal mode can only be enered wih a valid hos command while boh power supplies are wihin heir operaional range BD_Sandby mode Afer power-up he TLE9222 auomaically eners BD_Sandby, an idle mode wih opimized low power consumpion. In BD_Sandby mode neiher sending nor receiving daa is possible, boh he ransmier and he receiver are disabled. The bus biasing is conneced o GND hrough he inernal common mode resisors. The communicaion conroller inerface is inacive. The TxD and he TxEN inpus are no funcional. The RxD oupu is used for signalling wake-up or error informaion, depending on he hos command. The hos inerface is acive and fully funcional, as well as saus regiser read-ou on he SPI inerface. The bus guardian inerface is inacive and deecion of bus ransmission hrough he RxEN flag in he saus regiser is no possible. The bus failure deecor is no acive, no bus failure can be deeced. The wake-up deecor is acive and signals wake-up requess on he ERRN and RxD oupus while he hos command is BD_Sandby mode. The power supply inerface wih volage monioring on boh V CC and V IO is acive. If he TLE9222 is forced o BD_Sandby mode because of undervolage evens while he hos command is BD_Normal mode, his is signalled on he ERRN oupu. Addiionally, he informaion is sored in he saus regiser BD_Off condiion The TLE9222 eners he BD_Off condiion when he V CC power supply drops below he ubdpdv CC power-onrese hreshold. In his sae he ransmier and he receiver are urned off, he wake-up funcion is no operaional, he RxD and ERRN oupus are low and he SDO oupu is in high impedance sae. If he V IO reference supply is available, he logical inpus are se o heir defaul saes as given in Table 2. Table 2 Logic inpus when unconneced / defaul saes Inpu Signal Defaul Sae TxD TxEN STBN BGE SCSN SCLK Daa Shee 9 Rev. 1.3

10 Funcional descripion 4.2 Communicaion conroller inerface The communicaion conroller inerface is he link beween he TLE9222 and he FlexRay communicaion conroller, comprising hree digial signals: TxEN (Transmi Daa Enable No) inpu TxD (Transmi Daa) inpu RxD (Receive Daa) oupu The logical I/O levels of all hree digial pins are adaped o he V IO digial reference volage supply. BGE RxD Bus Volages TxD TxEN ubm ubp ubus = ubp - ubm ubpdaa1 = ubmdaa0 ubiasnon-_power ubmdaa1 = ubpdaa0 ubdtxacive Idle Daa 0 Daa 1 Daa 0 Daa 1 Idle ubdtxidle ubdtxacive_d0 TLE9222_BUS_TRANSMISSION_V01 Figure 4 FlexRay physical layer bus signals The communicaion conroller inerface drives he serial digial daa sream available on he TxD inpu o he FlexRay bus via he ransmier. Simulaneously he receiver of he TLE9222 moniors he daa on he FlexRay bus and ransfers he daa o a serial digial daa sream back o he RxD oupu. A logical low signal on he TxD inpu drives a Daa_0 signal on he FlexRay bus; a Daa_0 signal on he FlexRay bus resuls in a logical low signal on he RxD oupu. Vice versa a logical high on TxD drives a Daa_1 signal on he FlexRay bus and resuls in a logical high signal on he RxD oupu. The RxD oupu is also used o signal wake-up evens while he ransceiver is in BD_Sandby mode. The TxEN inpu is only funcional in BD_Normal mode and requires a ransiion from high o low for iniiaing bus ransmissions. Afer TxEN has been se low while he BGE inpu is high, a low level on he TxD inpu enables he ransmier. Daa Shee 10 Rev. 1.3

11 Funcional descripion For avoiding uninenional blocking of he FlexRay bus in case of failures, he ransmier is proeced wih a ime-ou funcion. In case a ime-ou occurs, he ransmier will auomaically be disabled and he error will be signalled by he ERRN oupu and in he saus regiser. A more deailed descripion of his fail safe funcion is given in Chaper Bus guardian inerface The bus guardian inerface allows an exernal supervision device o immediae inerrup any bus ransmission of he TLE9222. A logical low signal on he BGE inpu disables he ransmier of he TLE9222 while operaing in BD_Normal mode, regardless of he signals on he TxD and TxEN inpus. For increasing he ECU sysem safey level, an enhanced redundan feedback pah has been implemened for he bus guardian inerface. A monioring circui direcly a he ransmier oupu sages provides reliable feedback by seing he ERRN oupu low and indicaion wih he BGE flag in he saus regiser afer he ransmier has been disabled hrough he Bus Guardian inerface. The logical I/O level of he BGE inpu is adaped o he digial reference volage level uv IO. Togeher wih he TxEN inpu, he BGE inpu is moniored for he ransmier ime-ou funcion (see Chaper 4.7.3). Addiionally, he saus regiser includes he RxEN (Receive Enable NOT) flag ha indicaes aciviy (Daa_0 or Daa_1) on he FlexRay bus. This deecion is only acive in BD_Normal Mode. The RxEN bi can be read ou wih he SPI Inerface as described in Chaper Hos inerface The hos inerface enables he hos o conrol he operaion mode of he TLE9222 and o flag saus informaion. The hos inerface is implemened using hard wired signals, Opion A according o he FlexRay EPL Spec Table 3 STBN Hos command Resuling operaion mode BD_Normal BD_Sandby The STBN (Sandby No) inpu conrols he operaion mode of he TLE9222. Unless he TLE9222 is being forced o BD_Sandby mode because of undervolage evens, he hos command will se operaion mode as given in Table 3. Mode change by hos command is compleed wihin he ime dbd ModeChange afer he hos command is applied. Volage spikes on he STBN inpu ha are shorer han dbdlogic Filer are filered ou and ignored. Daa Shee 11 Rev. 1.3

12 Funcional descripion < dbdlogic Filer < dbdlogic Filer dbdlogic Filer dbdlogic Filer STBN uv Dig_In STBN 70% V IO uv Dig_In STBN 30% V IO dbd ModeChange dbd ModeChange BD_Normal mode BD_Sandby mode BD_Normal mode Mode ransiion TLE9222_MODE_CONTROL_V00 Figure 5 Mode conrol wih he STBN inpu The ERRN oupu is used o signal evens deeced by he TLE9222 o he hos conroller. Depending on he provided hos command, he ERRN oupu indicaes errors or wake-up evens, see Table 4. The TLE9222 reacs on and signals hese evens on he ERRN oupu wihin he ime dreaciontime ERRN. Deailed informaion abou he deeced evens as given in Table 4 can be read ou from he saus regiser wih he SPI inerface as described in Chaper 4.8. Table 4 Signalling on he ERRN and RxD pins STBN ERRN RxD Cause / Commen Effec BD_Normal mode / 1) Defaul condiion for BD_Normal mode Bus error deeced / 1) Transmier ime-ou deeced Transmier disabled Overemperaure even deeced Transmier disabled BGE inpu low Transmier disabled SPI error deeced BD_Sandby mode Defaul condiion for BD_Sandby mode Bus wake-up deeced V CC undervolage deeced Forced BD_Sandby mode X 2) V IO undervolage deeced Forced BD_Sandby mode, logic inpus follow defaul saes (see Table 2) SDO high impedance BD_OFF condiion X 2) uv CC below ubdpdv CC 1) Depending on bus sae; RxD low when Daa_0 is deeced, RxD high when Daa_1 is deeced or when bus is Idle 2) X = Don care Daa Shee 12 Rev. 1.3

13 Funcional descripion A low oupu level on he ERRN pin is lached. To rese he ERRN even and he saus regiser eiher a correc read-ou of he saus regiser or a mode change by he hos command is required, given ha he error condiion has been resolved. 4.5 Power supply inerface The TLE9222 is powered by he V CC pin which shall be conneced o a volage supply wih nominal 5 V. Addiionally, he TLE9222 provides he V IO reference volage pin for all digial inpus and oupus. The volages a he V CC and V IO pins are moniored for deecion of undervolage evens V CC undervolage deecion The TLE9222 deecs undervolage evens on he V CC pin if he volage uv CC falls below he undervolage deecion hreshold ubduvv CC for a ime > dbduvv CC_blk. Upon deecion he V CC -undervolage flag and he error flag are se. In case he TLE9222 is in BD_Normal mode, he ransmier will be disabled and he ERRN oupu will go low afer he ime dreaciontime ERRN. Afer he ime dbduvv CC he TLE9222 will force a ransiion o BD_Sandby, regardless of he hos command (see Figure 6). STBN uv CC dbduvv CC ubduvv CC < dbduvv CC_blk Se V CC -undervolage flag Se Error flag Transmier blocked dbduvv CC_blk Block hos command Forced mode change ERRN pin low Hos command released dbdrv CC BD_Normal mode BD_Sandby mode According o Hos command Figure 6 V CC undervolage deecion TLE9222_VCC_UNDERVOLTAGE_V00 The TLE9222 recovers from a V CC undervolage even afer he ime > dbdrv CC following he volage uv CC rise above he undervolage deecion hreshold ubduvv CC. This will release he hos command and change operaion mode accordingly V IO undervolage deecion The V IO undervolage deecion is similar o ha on he V CC supply. Undervolage evens on he V IO pin are deeced if he volage uv IO falls below he undervolage deecion hreshold uuv IO for a ime > dbduvv IO_blk. Upon deecion he V IO -undervolage flag and he error flag are se. While an undervolage even is presen on he V IO pin, he reference hreshold levels of all digial inpu and oupu pins are invalid. Therefore, he TLE9222 blocks he hos inerface, communicaion conroller inerface, SPI inerface and he bus guardian inerface. The digial oupus RxD and ERRN are se low and all digial inpu pins follow heir defaul levels Daa Shee 13 Rev. 1.3

14 Funcional descripion (see Table 2). The SDO oupu is se o high impedance sae. Afer he ime dbduvv IO he TLE9222 will force a ransiion o BD_Sandby mode. STBN uv IO dbduvv IO uuv IO < dbduvv IO_blk Se V IO -undervolage flag Se Error flag dbduvv IO_blk Block hos command Forced mode change Digial inpus se o defaul ERRN se low, RxD se low SDO se high impedance Release hos command and digial inerfaces dbdrv IO BD_Normal mode BD_Sandby mode According o Hos Command Figure 7 V IO undervolage deecion TLE9222_VIO_UNDERVOLTAGE_V00 The TLE9222 will recover from a V IO undervolage even afer he ime > dbdrv IO following he volage uv IO rise above he undervolage deecion hreshold uuv IO. This will release he SPI inerface and hos command, and change mode accordingly (see Figure 7) Power-up and power-down The TLE9222 will remain in BD_Off condiion as long as he volage on he V CC supply pin, uv CC, is below he power-down hreshold ubdpdv CC. When uv CC is ramped up higher han ubdpdv CC he TLE9222 powers up and begins iniializaion of he BD_Sandby mode wihin he ime dbd Power. Afer boh volages uv CC and uv IO have risen above heir respecive undervolage deecion hresholds (ubduvv CC and uuv IO, respecively), he digial inerfaces will be released and he full funcionaliy of he device will be available. The power-on even can be idenified wih he corresponding flag in he saus regiser and mode change according o he hos command will hen be iniiaed (see Figure 8). Daa Shee 14 Rev. 1.3

15 Funcional descripion V uv CC ubduvv CC uuv IO uv IO ubdpdv CC dbd Power dbdrv IO Se Power-on flag BD_Off mode Release hos command Forced BD_Sandby mode According o Hos Command TLE9222_POWER-UP_V00 Figure 8 Power-up behavior The power-down sequence of he TLE9222 is shown in Figure 9. As he volage a he V CC supply pin, uv CC, falls below he undervolage hreshold he V CC -undervolage flag and he error flag are se. Afer he deecion ime for V CC undervolage dbduvv CC he TLE9222 blocks he hos command and auomaically eners BD_Sandby mode. V uv CC ubduvv CC uv IO uuv IO ubdpdv CC Se V CC -undervolage flag Se Error flag dbduvv CC dbduvv IO dbd Power Block hos command According o Hos Command Se V IO -undervolage flag Block all digial inerfaces BD_Sandby mode BD_Off TLE9222_POWER-DOWN_V00 Figure 9 Power-down behavior While he TLE9222 is being powered down, he behavior on he digial inerface level shif reference pin V IO is very similar o he V CC supply pin. As uv IO falls below he undervolage hreshold he undervolage imer is sared and he V IO -undervolage flag is se. If V CC is no already in undervolage condiion, he error flag is also se. Afer he deecion ime for V IO undervolage, dbduvv IO, he TLE9222 blocks he hos command (if no already blocked because of V CC undervolage) and all digial inerfaces and eners BD_Sandby mode. When he volage a he V CC supply pin, uv CC, falls below he power-on hreshold ubdpdv CC he TLE9222 eners BD_Off condiion wihin he ime dbd Power. Daa Shee 15 Rev. 1.3

16 Funcional descripion 4.6 Remoe wake-up The TLE9222 deecs and signals a remoe wake-up reques afer correc recepion of a bus wake-up paern or wake-up payload in a FlexRay daa frame while operaing in BD_Sandby mode. When he valid wake-up paern or wake-up payload is deeced, he TLE9222 signals he reques wih he remoe wake-up flag in he saus regiser and on he RxD and ERRN oupus wihin he ime dbdwakeupreacion Remoe. The wake-up deecor is also acive in BD_Normal mode, bu wake-up requess are only flagged when he TLE9222 is in BD_Sandby mode Bus wake-up paerns A wake-up paern consiss of a leas wo wake-up symbols. A wake-up symbol on he FlexRay bus is defined as eiher a phase of Daa_0 followed by a phase of Idle, or alernaively as a phase of Daa_0 followed by a phase of Daa_1. A valid remoe wake-up even is deeced wih he recepion of a leas wo consecuive wake-up symbols on he bus wihin he ime dwu Timeou (see Figure 10 and Figure 11). Wake-up symbol Wake-up paern Wake-up symbol Bus Volages ubm ubp ubus = ubp - ubm udaa0_lp Idle Daa_0 Idle Daa_0 Idle Idle dwuidledeec dwu0deec dwuidledeec dwu0deec dwuidledeec dwutimeou dbdwakeupreacionremoe RxD ERRN TLE9222_WAKEUP_STANDARD_V00 Figure 10 Sandard wake-up paern The Daa_0 phases have o be longer han he ime dwu 0Deec while he Idle or Daa_1 (alernaive wake-up paern) phases have o be longer han he ime dwu IdleDeec. The TLE9222 deecs and signals boh he sandard and he alernaive wake-up paerns wihou any behavioral differences. Daa Shee 16 Rev. 1.3

17 Funcional descripion Wake-up symbol Wake-up paern Wake-up symbol Bus Volages ubm ubp ubus = ubp - ubm udaa0_lp Idle Daa_0 Daa_1 Daa_0 Daa_1 Idle dwuidledeec dwu0deec dwuidledeec dwu0deec dwuidledeec dwutimeou dbdwakeupreacionremoe RxD ERRN TLE9222_WAKEUP_ALTERNATIVE_V00 Figure 11 Alernaive wake-up paern Wake-up by payload In addiion o wake-up deecion by wake-up paerns, he TLE9222 also suppors wake-up requess by a specific payload wihin he daa field of a FlexRay communicaion frame wih daa ransmission rae of 10 Mbi/s. A dedicaed Bye Sar Sequence (BSS) is ransmied before each bye of he payload wihin he FlexRay daa frame. The BSS consiss of one high bi followed by one low bi. For ransmiing a Daa_0 bye on he FlexRay bus, he FlexRay conroller sends 10 bis, he high bi and he low bi as par of he BSS followed by he eigh low daa bis (HL= BSS; LLLLLLLL= Daa_0 ). For sending a Daa_1 bye he FlexRay conroller sends he high bi and he low bi, followed by he eigh consecuive high daa bis (HL = BSS; HHHHHHHH = Daa_1 ) (see Figure 12). Daa_1" ubus udaa0_lp Daa_0" dwu 0Deec dwu IdleDeec dwu 0Deec dwu IdleDeec Wake-up payload conen: dwu Timeou 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF dwu Inerrup TLE9222_WAKEUP_PAYLOAD_V01 Figure 12 Wake-up by payload Daa Shee 17 Rev. 1.3

18 Funcional descripion 4.7 Fail safe funcions and flags In addiion o power supply undervolage deecion, he TLE9222 provides several funcions for deecion of local or remoe failures wih corresponding saus flags. These errors are signalled wih he ERRN oupu and can be read ou from he saus regiser. When local errors are deeced, he TLE9222 iniiaes fail safe procedures for device self proecion and prevenion of communicaion channel inerrupion Overemperaure deecion The ransmier of he TLE9222 is proeced agains overemperaure evens when acive in BD_Normal mode. If he juncion emperaure rises above he T J(warning) hreshold he emperaure-warning flag in he saus regiser is se. If he juncion emperaure coninues o rise and exceeds he T J(Shu_Down) hreshold, he ransmier will be disabled and he overemperaure even will be flagged by he emperaure-high flag in he saus regiser and signalled wih he ERRN oupu. Bus Juncion emperaure Temperaure-warning flag se TJ(Warning) TJ(Shu_Down) ERRN RxD TxD Figure 13 Overemperaure proecion dreaciontimeerrn TLE9222_OVERTEMPERATURE_V Bus error deecor The bus error deecor moniors he FlexRay bus for idenifying exernal failures which may lead o corrup daa ransmission and recepion. Wih he RxD-TxD compare funcion and he bus overcurren monioring, bus errors are deeced and signalled wih he bus error flag. The bus error deecor is only enabled in BD_Normal mode while he ransmier is acive. Daa Shee 18 Rev. 1.3

19 Funcional descripion RxD-TxD compare When he TLE9222 ransmis daa on he bus (TxEN low and BGE high ), he digial inpu daa on TxD is compared wih he received daa on he RxD oupu. If he daa is no idenical, a failure condiion is idenified. Boh he posiive and he negaive edges on he TxD inpu signal riggers an inernal comparaor o compare he TxD signal wih he RxD signal. The resuls are sored in an inernal error couner. When he inernal error couner exceeds 10 repored comparison failures, he bus error flag will be se. The error couner is rese when he ransmier is deacivaed Bus overcurren The BP and BM bus pins have implemened curren sensors for deecion of overcurren condiions in he direcion in or ou of he pins. Deecion of overcurren is he ypical signaure of a shor circui of one of he bus lines o he ground or a supply line Transmier ime-ou For avoiding uninenional blocking of he FlexRay bus in case of e.g. a malfuncioning microconroller or shor circuis on he PCB, he ransmier is proeced wih a ime-ou funcion. When he ransmier is acivaed for bus ransmission while in BD_Normal mode, wih a low signal on TxEN and high on BGE, a imer is sared. In case a ime-ou occurs, he ransmier will auomaically be disabled and he failure will be signaled on he ERRN oupu and in he saus regiser. The ransmier imer is rese when he ransmier is deacivaed wih eiher TxEN or BGE V IO undervolage flag During V IO undervolage evens, he SPI regiser is blocked and can no be read ou. Afer undervolage recovery, depending on hos command and he saus of oher regiser flags, he V IO -undervolage flag may or may no be se. Please refer o Chaper SPI-error flag The SPI-error flag is used for indicaion of incorrec SPI read-ou procedure, please find deailed descripion in Chaper Error flag If any local errors or bus errors are deeced, he respecive bi in he saus regiser is flagged ogeher wih he error flag (bi 12). If he error flag is se, bu no oher error conribuing flags in he saus regiser se, hen his indicaes ha a V IO undervolage even has occurred in he pas bu recovery has already aken place. While he error flag is se and he hos command on he STBN inpu is high, he ERRN oupu is low Mode flags The mode flag in he saus regiser indicaes he curren operaing mode of he TLE9222, regardless of he applied hos command. If he TLE9222 is in BD_Sandby mode, bi 1 will be low. If he curren operaion mode is BD_Normal, bi 1 will be high. The mode flag will only oggle during an operaion mode change, i.e. no be rese by SPI regiser read-ou. The mode indicaion can be beneficial for he hos when he TLE9222 is forced o a differen mode han requesed wih he hos command during V CC undervolage evens. Daa Shee 19 Rev. 1.3

20 Funcional descripion 4.8 SPI inerface and saus regiser The TLE9222 has a 16-bi SPI inerface for reading ou he inernal saus regiser. The bis in he regiser reflecs deailed flags regarding exernal evens such as wake-up and power-on recogniion, deecion of errors / warnings and operaion mode indicaion, see Table 5. Table 5 Bi definiion of he saus regiser Bi Name Indicaion Commen Bi 0 Remoe wake-up : Remoe wake-up deeced flag : Bi 1 Mode flag : BD_Sandby mode : BD_Normal mode Bi 2 BGE flag : Transmier disabled by Bus Guardian, Error, will rigger Bi 12 low BGE inpu low in BD_Normal mode : Bi 3 RxEN flag : Bus aciviy ongoing No lached : Bus idle Bi 4 Power-on flag : Power-on deeced : Bi 5 Bus-error flag : Bus error deeced Error, will rigger Bi 12 low : Bi 6 Temperaure-high : Overemperaure deeced Error, will rigger Bi 12 low flag : Bi 7 Transmier imeou : Transmier acivaion ime-ou Error, will rigger Bi 12 low flag : Bi 8 V CC -undervolage : V CC Undervolage deeced Error, will rigger Bi 12 low flag : Bi 9 V IO -undervolage : V IO Undervolage deeced Error, will rigger Bi 12 low flag : Bi 10 SPI-error flag : SPI error deeced Error, will rigger Bi 12 low : Bi 11 Temperaurewarning : emperaure warning flag : Bi 12 Error flag : Error(s) deeced Error, will rigger ERRN oupu low if signal on STBN is high : No errors deeced Bi 13 Reserved Always Bi 14 Reserved Always Bi 15 Even pariy bi : Odd pariy of Bi 0 o Bi 14 : Even pariy of Bi 0 o Bi 14 All he flags in he saus regiser are acive low, he defaul level is high. Daa Shee 20 Rev. 1.3

21 Funcional descripion The RxEN flag indicaes ongoing bus ransmission. As soon as he bus sae reurns o idle, his flag is se high. The wake-up, power-on and error flags and heir corresponding saus regiser bis are lached low. A mode change by hos command or a correc SPI saus bi regiser read-ou will rese hese flags, given ha he error condiion has been resolved Read-ou procedure The SPI inerface of he TLE9222 is enabled by he SCSN (SPI Chip Selec No) inpu. While SCSN is high, he SDO (SPI Daa Oupu) oupu is in a high impedance sae and clock signals on he SCLK inpu are ignored. The read-ou procedure is iniiaed wih a low signal on SCSN, which will cause he SDO oupu o be se low (see Figure 13). Afer he ime dspi Lead he saus regiser daa can be shifed ou on he SDO oupu synchronized wih he rising edge of a clock signal on he SCLK inpu. Wih a clock signal period of dspi Clk, he TLE9222 suppors SPI daa raes in he range 10 kbi/s o 4 Mbi/sIf a ransiion on SCSN from high o low is deeced while SCLK is high, his would be idenified as a SPI error. Wihin he SCSN period, he ime dspi SCSN_ while he signal on SCSN is low, exacly 16 clock cycles are expeced for a correc read-ou procedure. Incorrec SPI access, wih more or less han 16 SCLK cycles or wrong iming, is proeced by he SPI imer. If he read-ou ime dspi SCSN_ expires, he SDO oupu is se o high impedance wihin he ime dspi SDOZ. Addiionally he error flag and SPI-error flag in he saus regiser will be se, while he sae of all oher lached bis are lef unchanged. SCSN dspi SCSN_ SCLK dspi Lead dspi Clk dspi Lag dspi SDOZ SDO impedance Bi 0 Bi 1 Bi 2 Bi 3 Bi 13 Bi 14 Bi 15 impedance TLE9222_SPI_READ-OUT_V00 Figure 14 SPI read-ou Afer a correc SPI read-ou process, he informaion on he ERRN oupu and he flags in he saus regiser are refreshed. Nex SPI read-ou can be iniiaed afer SCSN is se high for he ime dspi Inerframe. The SPI inerface is available in boh BD_Normal mode and BD_Sandby mode, bu SPI readou should no occur a he same ime as a mode change wih he hos inerface, he ime dbd ModeChange mus be respeced. The SPI regiser is also blocked during undervolage condiions on V IO. While he TLE9222 is se in BD_Sandby wih hos command (pin STBN = low ) and no wake-up or errors have been deeced, he SPI inerface requires an enable ime of dspi LeadSbOK from SCSN goes low unil he firs rising edge on he clock signal on he SCLK inpu can be applied. Daa Shee 21 Rev. 1.3

22 General produc characerisics 5 General produc characerisics 5.1 Absolue maximum raings Table 6 Absolue maximum raings 1) All volages wih respec o ground, posiive curren flowing ino pin; (unless oherwise specified) Parameer Symbol Values Uni Noe or Number Min. Typ. Max. Tes Condiio n Volages Supply Volage V CC uv CC V P_5.1.1 Digial Reference Volage V IO uv IO V P_5.1.2 DC volage on pin BP ubp V P_5.1.3 DC volage on pin BM ubm V P_5.1.4 DC volage on logic inpu pins TxD, TxEN, BGE, STBN, SCSN, SCLK uv Logic_in V P_5.1.5 DC volage on logic oupu pins RxD, ERRN, SDO Currens uv Logic_ou -0.3 uv IO ) No subjec o producion es, specified by design 2) ESD suscepibiliy, HBM according o ANSI/ESDA/JEDEC JS001 (1.5k Ω, 100 pf) 3) ESD suscepibiliy, Charged Device Model CDM ESDA STM5.3.1 or ANSI/ESD S V P_5.1.6 Oupu Curren on pin RxD irxd ma P_5.1.7 Oupu Curren on pin ERRN ierrn ma P_5.1.8 Oupu Curren on pin SDO isdo ma P_5.1.9 Temperaure Juncion Temperaure T j C P_ Sorage Temperaure T sg C P_ ESD Suscepibiliy ESD Suscepibiliy o GND on BP and BM uesd Ex -8 8 kv HBM 2) P_ ESD Suscepibiliy o GND all oher pins uesd In -2 2 kv HBM 2) P_ ESD Suscepibiliy o GND all pins uesd CDM V CDM 3) P_ Noes 1. Sresses above he ones lised here may cause permanen damage o he device. Exposure o absolue maximum raing condiions for exended periods may affec device reliabiliy. 2. Inegraed proecion funcions are designed o preven IC desrucion under faul condiions described in he daa shee. Faul condiions are considered as ouside normal operaing range. Proecion funcions are no designed for coninuous repeiive operaion. Daa Shee 22 Rev. 1.3

23 General produc characerisics 5.2 Funcional range Table 7 Operaing range Parameer Symbol Values Uni Noe or Number Min. Typ. Max. Tes Condiion Supply Volage V CC uv CC V P_5.2.1 Digial Reference Volage V IO uv IO V P_5.2.2 Juncion Temperaure T J C P_5.2.3 Noe: Wihin he funcional or operaing range, he IC operaes as described in he circui descripion. The elecrical characerisics are specified wihin he condiions given in he Elecrical Characerisics able. 5.3 Thermal resisance Noe: This hermal daa was generaed in accordance wih JEDEC JESD51 sandards. For more informaion, go o Table 8 Thermal resisance 1) Parameer Symbol Values Uni Noe or Number Min. Typ. Max. Tes Condiion Thermal Resisance Juncion o Ambien R hja 120 K/W PG-TSSOP-14 2) P_5.3.1 Juncion o Ambien R hja 45 K/W PG-TSON-14 2) P_5.3.5 Thermal Shudown Juncion Temperaure Thermal warning emp. T J(warning) C P_5.3.2 Thermal shu-down emp. T J(Shu_Down) C P_5.3.3 Thermal shudown hyseresis T 6 K P_ ) No subjec o producion es, specified by design 2) Specified R hja value is according o Jedec JESD51-2,-7 a naural convecion on FR4 2s2p board; The TLE9222 was simulaed on a 76.2 x x 1.5 mm board wih 2 inner copper layers (2 x 70µm Cu, 2 x 35µm Cu) Daa Shee 23 Rev. 1.3

24 Elecrical characerisics 6 Elecrical characerisics 6.1 Funcional device characerisics Table 9 Elecrical characerisics uv CC = 4.75 V o 5.25 V; uv IO = 3.0 V o 5.25 V; R DCLOAD = 45 Ohm; C DCLOAD = 100 pf; T j = -40 C o +150 C All volages wih respec o ground, posiive curren flowing ino pin (unless oherwise specified) Parameer Symbol Values Un Noe or Tes Condiion Number Min. Typ. Max. i Curren Consumpion V CC Power Supply Curren Consumpion in iv CC ma Transmier acive P_6.1.1 BD_Normal mode Curren Consumpion in BD_Normal mode iv CC_idle 6 15 ma Transmier idle; P_6.1.2 Curren Consumpion in BD_Sandby mode Curren Consumpion in BD_Sandby mode Curren Consumpion in BD_Off condiion iv CC_Sb_ µa T J 150 C; No bus aciviy or local errors deeced; Logic inpus in defaul saes; ERRN = high iv CC_Sb_ µa T J 85 C; No bus aciviy or local errors deeced; Logic inpus in defaul saes; ERRN = high iv CC_Off 35 µa Logic inpus in defaul saes; P_6.1.3 P_6.1.4 P_6.1.5 Curren Consumpion V IO Reference Curren Consumpion in BD_Normal mode iv IO ma P_6.1.6 Curren Consumpion in BD_Sandby mode Curren Consumpion in BD_Off condiion iv IO_Sb 1 8 µa No bus aciviy or local errors deeced; Logic inpus in defaul saes; ERRN = high iv IO_Off 6 µa Logic inpus in defaul saes P_6.1.7 P_ V P_6.1.9 Undervolage Deecion V CC Power Supply Undervolage deecion ubduvv CC hreshold on V CC Undervolage deecion ubduvv CC_Hys 100 mv P_ hyseresis on V CC Power-on rese hreshold ubdpdv CC V P_ Transiion ime o BD_Sandby mode afer power-up dbd Power µs V CC > ubdpdv CC P_ Daa Shee 24 Rev. 1.3

25 Elecrical characerisics Table 9 Elecrical characerisics (con d) uv CC = 4.75 V o 5.25 V; uv IO = 3.0 V o 5.25 V; R DCLOAD = 45 Ohm; C DCLOAD = 100 pf; T j = -40 C o +150 C All volages wih respec o ground, posiive curren flowing ino pin (unless oherwise specified) Parameer Symbol Values Un Noe or Tes Condiion Number Min. Typ. Max. i Undervolage filer ime dbduvv CC_blk 3 10 µs Undervolage deecion ime dbduvv CC µs Time beween undervolage even and forced mode change Undervolage recovery ime dbdrv CC µs Time beween undervolage recovery and forced mode change Daa Shee 25 Rev ) P_ P_ P_ V P_ Undervolage Deecion V IO Reference Undervolage deecion uuv IO hreshold on V IO Undervolage deecion ubduvv IO_Hys 30 mv P_ hyseresis on V IO Undervolage filer ime dbduvv IO_blk 1 10 µs 1) P_ Undervolage deecion ime dbduvv IO µs Time beween undervolage even and forced mode change Undervolage recovery ime dbdrv IO µs Time from recovery unil possible mode change Digial Oupu RxD level oupu volage uv Dig_Ou RxD % Relaive o uv IO ; 2) ; irxd H =-2mA; level oupu volage uv Dig_Ou RxD 20 % Relaive o uv IO ; 2) ; irxd L =2mA; Oupu volage while uv IO is in undervolage condiion Oupu volage while in BD_Off condiion uv Dig_Ou_UV_RxD 250 mv uv IO < uuv IO ; 100 kω load o GND; P_ P_ P_ P_ P_ uv Dig_Ou_Off_RxD 100 mv 100 kω load o GND; P_ Rise ime on he RxD oupu dbdrxd R ns 20% 80% of uv IO ; C BDRxD =15pF Fall ime on he RxD oupu dbdrxd F ns 80% 20% of uv IO ; C BDRxD =15pF Rise ime on he RxD oupu dbdrxd R ns 20% 80% of uv IO ; C BDRxD =25pF Fall ime on he RxD oupu dbdrxd F ns 80% 20% of uv IO ; C BDRxD =25pF Sum of rise and fall ime on he RxD oupu Difference of rise and fall ime on he RxD oupu P_ P_ P_ P_ dbdrxd R ns C BDRxD =15pF; P_ dbdrxd F15 dbdrxd R15 - dbdrxd F ns C BDRxD =15pF; P_6.1.30

26 Elecrical characerisics Table 9 Elecrical characerisics (con d) uv CC = 4.75 V o 5.25 V; uv IO = 3.0 V o 5.25 V; R DCLOAD = 45 Ohm; C DCLOAD = 100 pf; T j = -40 C o +150 C All volages wih respec o ground, posiive curren flowing ino pin (unless oherwise specified) Parameer Symbol Values Un Noe or Tes Condiion Number Min. Typ. Max. i Sum of rise and fall ime on he RxD oupu Difference of rise and fall ime on he RxD oupu Digial Oupu ERRN level oupu volage level oupu volage Oupu volage while uv IO is in undervolage condiion Oupu volage while in BD_Off condiion Rise ime on he ERRN oupu dbdrxd R ns C BDRxD =25pF; P_ dbdrxd F25 dbdrxd R25 - dbdrxd F25 uv Dig_Ou ERR N uv Dig_Ou ERR N ns C BDRxD =25pF; P_ % Relaive o uv IO ; 2) ; ierrn H =-2mA; 20 % Relaive o uv IO ; 2) ; ierrn L =2mA; P_ P_ uv Dig_Ou_UV_ERRN 250 mv uv IO < uuv IO ; P_ kω load o GND; 100 mv 100 kω load o GND; P_ uv Dig_Ou_UFF_ERR N dbderrn R ns 1) ; 20 % 80% of uv IO ; C BDERRN =25pF P_ Fall ime on he ERRN oupu dbderrn F ns 1) ; 80 % 20% of uv IO ; C BDERRN =25pF P_ Reacion ime on he ERRN dreaciontime E 5 30 µs P_ pin RRN Digial Oupu SDO level oupu volage uv Dig_Ou SDO % Relaive o uv IO ; 2) ; P_ isdo H =-2mA; level oupu volage uv Dig_Ou SDO 20 % Relaive o uv IO ; 2) ; isdo L =2mA; P_ Leakage curren while in high impedance sae ibdsdo Z -1 1 µa 0V < usdo < uv IO ; SCSN = high P_ Rise ime on he SDO oupu dbdsdo R ns 1) ; 20 % 80% of uv IO ; P_ C BDSDO =25pF Fall ime on he SDO oupu dbdsdo F ns 1) ; 80 % 20% of uv IO ; P_ C BDSDO =25pF Reacion ime for seing SDO oupu o high impedance dspi SDOZ 250 ns 1) P_ Digial Inpu TxD Threshold for deecing ubdlogic_1 60 % Relaive o uv IO ; P_ logical high Threshold for deecing ubdlogic_0 40 % Relaive o uv IO ; P_ logical low level inpu curren ibdlogic_ µa P_ Daa Shee 26 Rev. 1.3

27 Elecrical characerisics Table 9 Elecrical characerisics (con d) uv CC = 4.75 V o 5.25 V; uv IO = 3.0 V o 5.25 V; R DCLOAD = 45 Ohm; C DCLOAD = 100 pf; T j = -40 C o +150 C All volages wih respec o ground, posiive curren flowing ino pin (unless oherwise specified) Parameer Symbol Values Un Noe or Tes Condiion Number Min. Typ. Max. i level inpu curren ibdlogic_0-1 1 µa P_ Inpu capaciance on pin C_BDTxD 5 pf 1) P_ TxD Digial Inpu TxEN Threshold for deecing uv Dig_In TxEN 70 % Relaive o uv IO ; P_ logical high Threshold for deecing uv Dig_In TxEN 30 % Relaive o uv IO ; P_ logical low level inpu curren i Dig_In TxEN -1 1 µa P_ level inpu curren i Dig_In TxEN µa P_ Inpu capaciance on pin TxEN C_BDTxEN 5 pf 1) P_ Maximum ransmier acivaion ime Digial Inpu BGE Threshold for deecing logical high Threshold for deecing logical low dbdtxacivema x µs P_ uv Dig_In BGE 70 % Relaive o uv IO ; P_ uv Dig_In BGE 30 % Relaive o uv IO ; P_ level inpu curren i Dig_In BGE µa P_ level inpu curren i Dig_In BGE -1 1 µa P_ Transmier acivaion delay BGE, Idle acive dbdbgeia ns R DCLOAD =40Ω P_ Transmier deacivaion dbdbgeai ns R DCLOAD =40Ω P_ delay BGE, Acive idle Inpu capaciance on pin C_BDBGE 5 pf 1) P_ BGE Digial Inpu STBN Threshold for deecing uv Dig_In STBN 70 % Relaive o uv IO ; P_ logical high Threshold for deecing uv Dig_In STBN 30 % Relaive o uv IO ; P_ logical low level inpu curren i Dig_In STBN µa P_ level inpu curren i Dig_In STBN -1 1 µa P_ Mode ransiion ime afer applying hos command dbd ModeChange 100 µs P_ Daa Shee 27 Rev. 1.3

28 Elecrical characerisics Table 9 Elecrical characerisics (con d) uv CC = 4.75 V o 5.25 V; uv IO = 3.0 V o 5.25 V; R DCLOAD = 45 Ohm; C DCLOAD = 100 pf; T j = -40 C o +150 C All volages wih respec o ground, posiive curren flowing ino pin (unless oherwise specified) Parameer Symbol Values Un Noe or Tes Condiion Number Min. Typ. Max. i Filer ime for deecion of dbdlogic Filer 2 6 µs P_ hos commands Inpu capaciance on pin C_BDSTBN 5 pf 1) P_ STBN Digial Inpu SCLK Threshold for deecing uv Dig_In SCLK 70 % Relaive o uv IO ; P_ logical high Threshold for deecing uv Dig_In SCLK 30 % Relaive o uv IO ; P_ logical low level inpu curren i Dig_In SCLK µa P_ level inpu curren i Dig_In SCLK -1 1 µa P_ SPI clock period dspi Clock µs P_ SPI enable ime dspi Lead 250 ns P_ SPI enable ime dspi LeadSbOK 4 µs BD_Sandby mode; No Wake or errors deeced; STBN = low ; ERRN = high P_ SPI disable ime dspi Lag 250 ns C BDSDO =25pF P_ Inpu capaciance on pin C_BDSCLK 5 pf 1) P_ SCLK Digial Inpu SCSN Threshold for deecing uv Dig_In SCSN 70 % Relaive o uv IO ; P_ logical high Threshold for deecing uv Dig_In SCSN 30 % Relaive o uv IO ; P_ logical low level inpu curren i Dig_In SCSN -1 1 µa P_ level inpu curren i Dig_In SCSN µa P_ SPI imeou dspi Timeou ms P_ SPI Inerframe space dspi Inerframe 10 µs Break beween consecuive SPI readous P_ Inpu capaciance on pin C_BDSCSN 5 pf 1) P_ SCSN Bus Transmier, BP and BM Absolue differenial oupu volage while sending; Daa_0 and Daa_1 ubdtx acive V 40 Ω < R DCLOAD <55Ω; 4) P_ Daa Shee 28 Rev. 1.3

29 Elecrical characerisics Table 9 Elecrical characerisics (con d) uv CC = 4.75 V o 5.25 V; uv IO = 3.0 V o 5.25 V; R DCLOAD = 45 Ohm; C DCLOAD = 100 pf; T j = -40 C o +150 C All volages wih respec o ground, posiive curren flowing ino pin (unless oherwise specified) Parameer Symbol Values Un Noe or Tes Condiion Number Min. Typ. Max. i BP shor circui curren Shor o GND, Absolue value BP shor circui curren Shor o -5 V, Absolue value BP shor circui curren Shor o 27 V, Absolue value BP shor circui curren Shor o BM, Absolue value BM shor circui curren Shor o GND, Absolue value BM shor circui curren Shor o -5 V, Absolue value BM shor circui curren Shor o 27 V, Absolue value BM shor circui curren Shor o BP, Absolue value Transmier delay negaive volage Transmier delay posiive volage Transmier delay mismach dbdtxasym = dbdtx10 - dbdtx01 Fall ime differenial bus volage (80% 20%) Rise ime differenial bus volage (20% 80%) Difference beween differenial bus volage rise ime and fall ime dbustxdiff = dbustx01 - dbustx10 Transmier delay Idle acive Transmier delay Acive idle ibp GNDShorMax ma P_ ibp -5ShorMax ma P_ ibp BAT27ShorMax ma P_ ibp BMShorMax ma P_ ibm GNDShorMax ma P_ ibm -5ShorMax ma P_ ibm BAT27ShorMax ma P_ ibm BPShorMax ma P_ dbdtx ns R DCLOAD =40Ω; 3) ; 4) P_ dbdtx ns R DCLOAD =40Ω; 3) ; 4) P_ dbdtxasym 4 ns R DCLOAD =40Ω; 3) ; 4) ; 7) P_ dbustx ns R DCLOAD =40Ω; 4) P_ dbustx ns R DCLOAD =40Ω; 4) P_ dbustxdiff 3 ns R DCLOAD =40Ω; P_ dbdtxia ns R DCLOAD =40Ω; P_ dbdtxai ns R DCLOAD =40Ω; P_ Daa Shee 29 Rev. 1.3

30 Elecrical characerisics Table 9 Elecrical characerisics (con d) uv CC = 4.75 V o 5.25 V; uv IO = 3.0 V o 5.25 V; R DCLOAD = 45 Ohm; C DCLOAD = 100 pf; T j = -40 C o +150 C All volages wih respec o ground, posiive curren flowing ino pin (unless oherwise specified) Parameer Symbol Values Un Noe or Tes Condiion Number Min. Typ. Max. i Transmier delay mismach dbdtxdm = dbdtxai - dbdtxia Transiion ime Idle acive Transiion ime Acive idle Bus Receiver, BP and BM Receiver hreshold for deecing Daa_1 Receiver hreshold for deecing Daa_0 Mismach of receiver hresholds Common mode volage range ucm =(ubp + ubm)/2 Filer ime for bus idle deecion Filer ime for bus acive deecion Receiver common mode inpu resisance Receiver differenial inpu resisance Absolue differenial bus idle volage Idle volage a BP and BM BD_Normal mode Idle volage a BP and BM BD_Sandby mode Absolue leakage curren on BP when in BD_Off condiion Absolue leakage curren on BM when in BD_Off condiion dbdtxdm ns R DCLOAD =40Ω; P_ dbustxia ns R DCLOAD =40Ω; P_ dbustxai ns R DCLOAD =40Ω; P_ udaa mv -10 V < ucm <15V; P_ udaa mv -10 V < ucm <15V; P_ udaa1 - udaa mv (ubp + ubm) /2=2.5V; P_ ucm V dbdidledeecio n dbdaciviydee cion 5) ; P_ ns ubus = 900 mv 30 mv; P_ ns ubus =30mV 900 mv; P_ R CM1, R CM kω Bus idle; open load; P_ R CM1 + R CM kω Bus idle; open load; P_ ubdtx Idle 0 30 mv TxEN = high ; 40 Ω < R DCLOAD <55Ω; ubias Non-Power V TxEN = high ; 6) ; 40 Ω < R DCLOAD <55Ω; P_ P_ ubias Power mv 40 Ω < R DCLOAD <55Ω; 6) ; P_ ibp Leak 7 15 µa ubp = ubm = 5 V; All oher pins conneced o GND. GND pin conneced direcly o 0 V; ibm Leak 7 15 µa ubp = ubm = 5 V; All oher pins conneced o GND. GND pin conneced direcly o 0 V; P_ P_ Daa Shee 30 Rev. 1.3