Order code Package Packing. L5957PD PowerSO20 (slug up) Tube L5957PDTR PowerSO20 (slug up) Tape and reel L5957 Multiwatt15 (Vertical) Tube

Transcription

1 Multifunction voltage regulator for car radio Features Four outputs: ma ma Permanent ma ma 2 A high side driver Reset function Ignition comparator Load dump protection Thermal shutdown Overcurrent limitation All pins ESD protected Description The L5957 contains a triple voltage regulator and a power switch. Multiwatt15 (Vertical) PowerSO20 (Slug up) The IC includes a monitoring circuit for detection. The IC features a very low quiescent current in standby. Table 1. Device summary Order code Package Packing L5957PD PowerSO20 (slug up) Tube L5957PDTR PowerSO20 (slug up) Tape and reel L5957 Multiwatt15 (Vertical) Tube September 2013 Doc ID Rev 3 1/16 1

2 Contents L5957 Contents 1 Block and pins connection diagrams Electrical specifications Absolute maximum ratings Thermal data Electrical characteristics Package information Revision history /16 Doc ID Rev 3

3 List of tables List of tables Table 1. Device summary Table 2. Absolute maximum ratings Table 3. Thermal data Table 4. Electrical characteristics Table 5. Document revision history Doc ID Rev 3 3/16

4 List of figures L5957 List of figures Figure 1. Block diagram Figure 2. Pins connection Figure 3. Typical application circuit Figure 4. Maximum ESR for stability valid for all the regulators outputs Figure 5. Timing diagram of regulators and power switch Figure 6. Backup and reset diagram Figure 7. Hold and thermal protection Figure 8. Ignition buffer diagram Figure 9. Protection of the power switch Figure 10. Short circuit diagram Figure 11. PowerSO20 (slug up) mechanical data and package dimensions Figure 12. Multiwatt15 (vertical) mechanical data and package dimensions /16 Doc ID Rev 3

5 Block and pins connection diagrams 1 Block and pins connection diagrams Figure 1. Block diagram VINI (MAIN) POWER SWITCH SW EN_SW REG1 REG 1(8.5V) REG2 REG 2(PERM)(5V) BU VIN2 ENREG3(5V) REG3 REG 3(5V) REG4 REG 4(3.3V) ENREG1-4(8.5V, 3.3V) HOLD IGN IN THERMAL PROTECTION DUMP LOAD PROTECTION IGNITION BUFFER RESET BUFFER RES CRES IGN OUT D02AU1342/L5957 Figure 2. Pins connection VIN REG3(5V) 19 2 N.C. REG1(8.5V) SW N.C PowerSO VIN1 BU REG2(5V) HEATSINK REG4(3.3V) IGNIN IGNOUT RES CRES ENREG1-4(8.5V, 3.3V) ENREG3(5V) EN_SW HOLD GND D02AU1343 /L Multiwatt VIN2 REG3 REG1 SWITCH BU REG2 VIN1 GND HOLD EN SW ENREG1, 4 ENREG3 CRES RES REG4 D03AU1513/L5957 Doc ID Rev 3 5/16

6 Electrical specifications L Electrical specifications 2.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol Parameter Value Unit V SDC DC operating supply voltage 30 V V STR Transient supply voltage 50 V I O Output current internally limited T op Operating temperature range -40 to 85 C T stg Storage temperature -55 to 150 C T j Junction temperature -55 to 150 C P d Power dissipation T case = 85 C 43 W 2.2 Thermal data Table 3. Thermal data Symbol Parameter PowerSO Multiwatt Unit R th j-case Thermal resistance junction-to-case Max C/W 2.3 Electrical characteristics V S = 14.4 V; T amb = 25 C; unless otherwise specified. Table 4. Electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit Input supplies V in1 Input supply voltage 1 Operating 9-18 V V in2 Input supply voltage 2 Operating 6-18 V Standby (-20 C to 85 C) IGN IN = 5 V A I q Total quiescent current REGx = 5 V, REGsw = 5 V, IGN IN = 5 V ma Standby (-20 C to 85 C) IGN IN = 5 V, V CC = 18 V µa Load Dump V V in V in1 Battery over voltage Load Dump V V in V in2 6/16 Doc ID Rev 3

7 Electrical specifications Table 4. Regulator 1 V o (REG 1) Output voltage 8.5 V V V Line regulation V in1 = 10 to 18 V; I = 500 ma mv V in1 = 9.3 to 18 V; I = 10 ma mv Vi Load regulation I reg1 = 1 to 500 ma mv I q Quiescent current I reg1 = 10 ma ma PSRR Supply voltage ripple rejection f = 1 khz; V in1 = 1.5 Vpp; I o = 500 ma db V drop Drop out voltage I reg1 = 500 ma (1) V Regulator 2 I m Current limit R short = A V o (ST BY) Output voltage 5 V V V Line regulation V in1 = 7 to 18 V; I = 300 ma mv V in1 = 6 to 18 V; I = 10 ma mv Vi Load regulation I reg2 = 1 to 300 ma mv I q Quiescent Current I reg2 = 10 ma ma PSRR V drop Regulator 3 Supply voltage ripple rejection Drop out voltage f = 1 khz; V in1 = 1.5 Vpp; I o = 300 ma db I reg2 = 300 ma (1) V I reg2 = 100 ma (1) V I m Current limit R short = ma V o (REG 3) Output voltage 5V V V Line regulation V in2 = 7 to 18 V; I = 800 ma mv V in2 = 6 to 18 V; I = 10 ma mv Vi Load regulation I reg3 = 1 to 800 ma mv I q Quiescent current I reg3 = 10 ma ma PSRR Supply voltage ripple rejection f = 1 khz; V in1 = 1.5 Vpp; I o = 800 ma db V drop Drop out voltage I reg3 = 800 ma (1) V Regulator 4 Electrical characteristics (continued) Symbol Parameter Test condition Min. Typ. Max. Unit I m Current limit R short = A V o (REG 4) Output voltage 3.3V V V Line regulation V in2 = 6 to 18 V; I = 800 ma mv V Line regulation V in2 = 6 to 18 V; I = 10 ma mv Doc ID Rev 3 7/16

8 Electrical specifications L5957 Table 4. Vi Load regulation I reg4 = 1 to 800 ma mv I q Quiescent current I reg4 = 10 ma ma PSRR Supply voltage ripple rejection f = 1 khz; V in1 = 1.5 Vpp; I o = 800 ma db V drop Drop out voltage I reg4 = 800 ma (1) V I m Current limit R short = A Power switch V dropsw Drop voltage power switch I dcsw = 1.8 A max V I psw1 Peak time 10 ms A Peak current power switch I psw2 Peak time 40 ms 1-2 A SW DEL Delay Protection ms Reset buffer (with push-pull buffer) RES RES falling Vreg2 = 5 V V RES RES rising Vreg2 = 5 V V V HYS(RES) Hysteresis of reset buffer mv IH source (RES) High level source current Reset = 0 V A IL sink (RES) Low level sink current Reset = 5 V ma RES delay Cres = 47nF ms TRES Reset rise and fall time R = 10 k C = 15 pf s I Charge Charge current C RES = 0 V A I Discharge Discharge current C RES = 5 V 1-3 ma V TH(F) Falling voltage threshold V V TH(R) Rising voltage threshold V V ol Low level I SINK(RES) = 1 ma V V oh High level Vreg2 5.5 V Hold signal Electrical characteristics (continued) Symbol Parameter Test condition Min. Typ. Max. Unit V lowi Hold output low for V in1 low Low detection V Hold output high for V V in1 lowh Normal high detection V normal V lowl Hold output low for V in1 high low detection V V HOLD R Low V IN1 threshold V IN1 Low TH V V HYS (HOLD_L) Hysteresis low TH mv V HOLD F High V IN1 threshold V IN1 High TH V V HYS (HOLD_M) Hysteresis high TH mv 8/16 Doc ID Rev 3

9 Electrical specifications Table 4. Electrical characteristics (continued) Symbol Parameter Test condition Min. Typ. Max. Unit Ignition buffer (push-pull with schmitt trigger) IGN IN IGN out falling V IGN IN IGN out rising V V hys(ignout) Hysteresis of ignition buffer mv IH source(ignout) High level source current I GNout = 0 V A IL sink(ignout) Low level sink current I GNout = 5 V ma V ol Low level IL sink (IGNout) = 1 ma V V oh High level Vreg2 5.5 V IGN RISE Rising time C = 15 pf s IGN FALL Fall time C = 15 pf s I CLAMP Input clamp current V CC < V IGN < 50 V ma IGN IN Input voltage Operative 0-50 V Enable input (regulators 1,3,4 and power switch) V TH Voltage threshold V EN IN Input voltage Operative 0-5 V 1. Drop condition means that the supply voltage drop down to 100 mv from the regulated output and the regulator is sourcing its maximal load current. Figure 3. Typical application circuit Vs VIN1 EN SW POWER SWITCH SW 22 µf 470 µf 100 nf 470 µf BU REG1 REG2 REG 1 REG 2 Cfilt (*) Cfilt (*) VIN2 ENREG3 ENREG1-4 REG3 REG4 REG 3 REG 4 HOLD 10 KΩ Cfilt (*) Cfilt (*) to µprocessor 10 KΩ IGN IN THERMAL DUMP LOAD PROTECTION PROTECTION IGNITION BUFFER RESET BUFFER RES CRES to µprocessor 47 nf 1 nf IGN OUT AC00427 (*) Recommended output filtering capacitors for all the regulators: C range = 5 µf to 100 µf, ESR range = 0.5 Ω to 10 Ω (T= -40 C to +85 C) Doc ID Rev 3 9/16

10 Electrical specifications L5957 Figure 4. Maximum ESR for stability valid for all the regulators outputs ESR [Ω] 10 Maximum ESR 5 Stable region AC00591 Minimum ESR C [µf] Figure 5. Timing diagram of regulators and power switch VM VIN1=VIN2 9V DUMP 8.5V REG1(8.5V) 3.3V REG4(3.3V) ENREG1-4 REG3(5V) 5V ENREG3 REG2(5V) 5V V M POWER SWITCH 9V EN-SW D02AU1420A 18V VM 22V 10/16 Doc ID Rev 3

11 Electrical specifications Figure 6. Backup and reset diagram 14 VBATT V PERM BACKUP CAP. 5 3 CDELAY t RESET t D02AU1422 t Figure 7. Hold and thermal protection DUMP VIN V 8.5V 5V 3.3V HOLD 5 TEMPERATURE PROTECTION 8.5V REG1(8.5V) ON T 160 REG2(5V) 5V REG3(5V) 5V 3.3V REG4(3.3V) ENREG3 5V ENREG1-4 D02AU1423B Doc ID Rev 3 11/16

12 Electrical specifications L5957 Figure 8. Ignition buffer diagram 50V IGNITION INPUT 1.27V 1.17V IGNITION OUTPUT LOAD DUMP VIN1 14V D02AU1424 Figure 9. Protection of the power switch V SW 16V DELAYED NOT DELAYED IN CASE V IN1 <16V 1.5A 3A D02AU1425 I SW Figure 10. Short circuit diagram SHORT TO GND REG1 SHORT TO GND REG2 SHORT TO GND REG3 SHORT TO GND REG4 SHORT TO GND SWITCH 12/16 Doc ID Rev 3

13 Package information 3 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: ECOPACK is an ST trademark. Figure 11. PowerSO20 (slug up) mechanical data and package dimensions DIM. mm inch MIN. TYP. MAX. MIN. TYP. MAX. A A A A a b c D (1) D D E E1 (1) E E e e G H h L N 10 (max) R S 0 (min.) 8 (max.) V 5 (min.) 7 (max.) (1) ÒD and E1Ódo not include mold flash or protusions. - Mold flash or protusions shall not exceed 0.15mm (0.006Ó) - Critical dimensions: ÒEÓ,Òa1Ó,ÒeÓ and ÒGÓ. OUTLINE AND MECHANICAL DATA PowerSO20 (SLUG UP) N N H E3 R A2 A A5 A4 c b e3 e D2 (x2) DETAIL A E2 E V h x 45û M 1 10 DETAIL A E2 E1 Gage Plane 0.35 a1 - C - S L SEATING PLANE G C D (COPLANARITY) PSO20DME D C Doc ID Rev 3 13/16

14 Package information L5957 Figure 12. Multiwatt15 (vertical) mechanical data and package dimensions DIM. mm inch MIN. TYP. MAX. MIN. TYP. MAX. A B C D E F G G H H L L L L L L M M S S Dia OUTLINE AND MECHANICAL DATA Multiwatt15 (vertical) J 14/16 Doc ID Rev 3

15 Revision history 4 Revision history Table 5. Document revision history Date Revision Changes 11-Feb Initial release. 08-Jan Sep Updated disclaimer. Updated Section 1: Block and pins connection diagrams on page 5. Updated Figure 3, 5 and 6. Doc ID Rev 3 15/16

16 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ( ST ) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. ST PRODUCTS ARE NOT DESIGNED OR AUTHORIZED FOR USE IN: (A) SAFETY CRITICAL APPLICATIONS SUCH AS LIFE SUPPORTING, ACTIVE IMPLANTED DEVICES OR SYSTEMS WITH PRODUCT FUNCTIONAL SAFETY REQUIREMENTS; (B) AERONAUTIC APPLICATIONS; (C) AUTOMOTIVE APPLICATIONS OR ENVIRONMENTS, AND/OR (D) AEROSPACE APPLICATIONS OR ENVIRONMENTS. WHERE ST PRODUCTS ARE NOT DESIGNED FOR SUCH USE, THE PURCHASER SHALL USE PRODUCTS AT PURCHASER S SOLE RISK, EVEN IF ST HAS BEEN INFORMED IN WRITING OF SUCH USAGE, UNLESS A PRODUCT IS EXPRESSLY DESIGNATED BY ST AS BEING INTENDED FOR AUTOMOTIVE, AUTOMOTIVE SAFETY OR MEDICAL INDUSTRY DOMAINS ACCORDING TO ST PRODUCT DESIGN SPECIFICATIONS. PRODUCTS FORMALLY ESCC, QML OR JAN QUALIFIED ARE DEEMED SUITABLE FOR USE IN AEROSPACE BY THE CORRESPONDING GOVERNMENTAL AGENCY. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 16/16 Doc ID Rev 3