Sep Down Volage Regulaor wih Rese TLE 6365 Feaures Sep down converer Supply Over- and Under-Volage-Lockou Low Oupu volage olerance Oupu Overvolage Lockou Oupu Under-Volage-Rese wih delay Overemperaure Shudown Wide Ambien operaion range -40 C o 125 C Wide Supply volage operaion range Very low curren consumpion Very small PG-DSO-8 SMD package Green Produc (RoHS complian) AEC Qualified P/PG-DSO-8-3, -6, -7, -8, -9 Funcional Descripion The TLE 6365 G is a power supply circui especially designed for auomoive applicaions. The device is based on Infineon s power echnology SPT which allows bipolar and CMOS conrol circuiry o be inegraed wih DMOS power devices on he same monolihic circuiry. The TLE 6365 G conains a buck converer and a power on rese feaure o sar up he sysem The very small PG-DSO-8 SMD package mees he applicaion requiremens. I delivers a precise 5 V fully shor circui proeced oupu volage. Furhermore, he build-in feaures like under- and overvolage lockou for supply- and oupu-volage and he overemperaure shudown feaure increase he reliabiliy of he TLE 6365 G supply sysem. Type Package Marking TLE 6365 G PG-DSO-8 6365G Daa Shee 1 Rev. 1.9, 2007-07-30
Pin Configuraion TLE 6365 G R 1 8 V S RO 2 7 BUO BUC 3 6 BDS GND 4 5 AEP03319.VSD Figure 1 Pin Configuraion (op view) Table 1 Pin Definiions and Funcions Pin No. Symbol Funcion 1 R Reference Inpu; an exernal resisor from his pin o GND deermines he reference curren and so he oscillaor / swiching frequency. 2 RO Rese Oupu; open drain oupu from rese comparaor wih an inernal pull-up resisor 3 BUC Buck-Converer Compensaion Inpu; oupu of inernal error amplifier; for loop-compensaion and herefore sabiliy connec an exernal R-C-series combinaion o GND. 4 GND Ground; analog signal ground 5 Oupu Volage Inpu; feedback inpu (wih inegraed resisor divider) and logic supply inpu; exernal blocking capacior necessary 7 BUO Buck Converer Oupu; source of he inegraed power-dmos 6 BDS Buck Driver Supply Inpu; volage o drive he buck converer powersage 8 V S Supply Volage Inpu; buck converer inpu volage; exernal blocking capacior necessary. Daa Shee 2 Rev. 1.9, 2007-07-30
Block Diagram V S 8 Biasing and V REF 6 BDS BUC 3 Buck Converer 7 BUO TLE 6365 G 5 VCC R 1 V Inernal Reference Curren Generaor and Oscillaor 4 GND Undervolage Rese Generaor 2 RO AEA03315.VSD Figure 2 Block Diagram Daa Shee 3 Rev. 1.9, 2007-07-30
Table 2 Absolue Maximum Raings Parameer Symbol Limi Values Uni Remarks Min. Max. Volages Supply volage V S -0.3 46 V Buck oupu volage V BUO -1 46 V Buck driver supply volage V BDS -0.3 48 V 0 C T j 150 C -0.3 47 V -40 C T j <0 C Buck compensaion inpu V BUC -0.3 6.8 V volage Logic supply volage -0.3 6.8 V Rese oupu volage V RO -0.3 6.8 V Curren reference volage V R -0.3 6.8 V ESD-Proecion (Human Body Model; R = 1.5 kω; C = 100 pf) All pins o GND V HBM -2 2 kv Temperaures Juncion emperaure T j -40 150 C Sorage emperaure T sg -50 150 C Noe: Sresses above hose lised here may cause permanen damage o he device. Exposure o absolue maximum raing condiions for exended periods may affec device reliabiliy. Daa Shee 4 Rev. 1.9, 2007-07-30
Table 3 Operaing Range Parameer Symbol Limi Values Uni Remarks Min. Max. Supply volage V S -0.3 40 V Supply volage V S 5 35 V V S increasing Supply volage V S 4.5 36 V V S decreasing Supply volage V S -0.3 4.5 V Buck-Converer OFF Buck oupu volage V BUO -0.6 40 V Buck driver supply volage V BDS -0.3 48 V 0 C T j 150 C -0.3 47 V -40 C T j <0 C Buck compensaion inpu V BUC 0 3.0 V volage Logic supply volage 4.0 6.2 V Rese oupu volage V RO -0.3 + 0.3 V Curren reference volage V CREF 0 1.23 V Juncion emperaure T j -40 150 C Thermal Resisance Juncion ambien R hj-a 180 K/W Daa Shee 5 Rev. 1.9, 2007-07-30
Table 4 Elecrical Characerisics 8 V < V S < 35 V; 4.75 V < < 5.25 V; -40 C < T j < 150 C; R R = 47 kω; all volages wih respec o ground; posiive curren defined flowing ino he pin; unless oherwise specified Parameer Symbol Limi Values Uni Tes Condiion Min. Typ. Max. Curren Consumpion Curren consumpion; I S 1.5 4 ma I CC = 0 ma see Figure 6 Curren consumpion; see Figure 6 I S 5 10 ma I CC = 400 ma Under- and Over-Volage Lockou a V S UV ON volage; V SUVON 4.0 4.5 5.0 V V S increasing buck conv. ON UV OFF volage; V SUVOFF 3.5 4.0 4.5 V V S decreasing buck conv. OFF UV Hyseresis volage V SUVHY 0.2 0.5 1.0 V HY = ON - OFF OV OFF volage; V SOVOFF 34 37 40 V V S increasing buck conv. OFF OV ON volage; V SOVON 30 33 36 V V S decreasing buck conv. ON OV Hyseresis volage V SUVHY 1.5 4 10 V HY = OFF - ON Over-Volage Lockou a OV OFF volage; OVOFF 5.5 6.0 6.5 V increasing buck conv. OFF OV ON volage; OVON 5.25 5.75 6.25 V decreasing buck conv. ON OV Hyseresis volage OVHY 0.10 0.25 0.50 V HY = OFF - ON Daa Shee 6 Rev. 1.9, 2007-07-30
Table 4 Elecrical Characerisics (con d) 8 V < V S < 35 V; 4.75 V < < 5.25 V; -40 C < T j < 150 C; R R = 47 kω; all volages wih respec o ground; posiive curren defined flowing ino he pin; unless oherwise specified Parameer Symbol Limi Values Uni Tes Condiion Min. Typ. Max. Buck-Converer; BUO, BDS, BUC and Logic supply volage 4.9 5.1 V 1 ma < I CC < 400 ma; see Figure 6 Efficiency; see Figure 6 Power-Sage ON resisance Power-Sage ON resisance Buck overcurren hreshold η 85 % I CC = 400 ma; V S = 14 V R BUON 0.38 0.5 Ω T j = 25 C; I BUO = 0.6 A R BUON 1.0 Ω I BUO = 0.6 A I BUOC 0.7 0.9 1.2 A Inpu curren on pin I CC 500 µa = 5 V Buck Gae supply volage; V BGS = V S - V BDS V BGS 5 7.2 10 V Reference Inpu; R (Oscillaor; Timebase for Buck-Converer and Rese) Volage on pin R V R 1.4 V R R = 100 kω Oscillaor frequency f OSC 85 95 105 khz T j = 25 C Oscillaor frequency f OSC 75 115 khz Cycle ime for rese iming CYL 1 ms CYL = 100 / f OSC Daa Shee 7 Rev. 1.9, 2007-07-30
Table 4 Rese Generaor; RO Rese hreshold; decreasing Elecrical Characerisics (con d) 8 V < V S < 35 V; 4.75 V < < 5.25 V; -40 C < T j < 150 C; R R = 47 kω; all volages wih respec o ground; posiive curren defined flowing ino he pin; unless oherwise specified Parameer Symbol Limi Values Uni Tes Condiion Min. Typ. Max. V RT 4.50 4.65 4.75 V V RO H o L or L o H ransiion; V RO remains low down o > 1 V Rese low volage V ROL 0.2 0.4 V I ROL = 1 ma; 2.5 V < < V RT Rese low volage V ROL 0.2 0.4 V I ROL = 0.2 ma; 1V < < V RT V I ROH = 0 ma Rese high volage V ROH - 0.1 + 0.1 Rese pull-up curren I RO 240 µa 0 V < V RO < 4 V Rese Reacion ime RR 10 40 90 µs < V RT Power-up rese delay ime RD 128 CYL 4.8 V Thermal Shudown (Boos and Buck-Converer OFF) Thermal shudown T jsd 150 175 200 C juncion emperaure Thermal swich-on T jso 120 170 C juncion emperaure Temperaure hyseresis T 30 K Daa Shee 8 Rev. 1.9, 2007-07-30
Circui Descripion Below some imporan secions of he TLE 6365 are described in more deail. Power On Rese In order o avoid any sysem failure, a sequence of several condiions has o be passed. In case of power down ( < V RT for > RR ) a logic LOW signal is generaed a he pin RO o rese an exernal microconroller. When he level of reaches he rese hreshold V RT, he signal a RO remains LOW for he Power-up rese delay ime RD before swiching o HIGH. If drops below he rese hreshold V RT for a ime exending he rese reacion ime RR, he rese circui is acivaed and a power down sequence of period RD is iniiaed. The rese reacion ime RR avoids wrong riggering caused by shor gliches on he -line. < RR < RD V PG V RT Typ. 4.70 V Typ. 4.65 V 1 V Sar Up ON Delay ON Delay ON Delay RO Sared Sopped H L Invalid Invalid Invalid RD RR RD Power Sar-Up Normal Failed N Failed Normal AET03325.VSD Figure 3 Rese Funcion Daa Shee 9 Rev. 1.9, 2007-07-30
Buck Converer A sabilized logic supply volage (yp. 5 V) for general purpose is realized in he sysem by a buck converer. An exernal buck-inducance L BU is PWM swiched by a high side DMOS power ransisor wih he programmed frequency (pin R). The buck converer uses he emperaure compensaed bandgap reference volage (yp. 2.8 V) for is regulaion loop. This reference volage is conneced o he non-invering inpu of he error amplifier and an inernal volage divider supplies he invering inpu. Therefore he oupu volage is fixed due o he inernal resisor raio o yp. 5.0 V. The oupu of he error amplifier goes o he invering inpu of he PWM comparaor as well as o he buck compensaion oupu BUC. When he error amplifier oupu volage exceeds he sawooh volage he oupu power MOS-ransisor is swiched on. So he duraion of he oupu ransisor conducion phase depends on he level. A logic signal PWM wih variable pulse widh is generaed. Exernal loop compensaion is required for converer sabiliy, and is formed by connecing a compensaion resisor-capacior series-nework (R BUC, C BUC ) beween pin BUC and GND. In he case of overload or shor-circui a (he oupu curren exceeds he buck overcurren hreshold I BUOC ) he DMOS oupu ransisor is swiched off by he overcurren comparaor immediaely. In order o proec he inpu as well as he exernal load agains caasrophic failures, an overvolage proecion is provided which swiches off he oupu ransisor as soon as he volage a pin exceeds he inernal fixed overvolage hreshold OVOFF = yp. 6.0 V. Also a baery undervolage proecion is implemened in he TLE 6365 o avoid wrong operaion of he following supplied devices, he ypical hreshold when decreasing he baery volage is a V SUVOFF = yp. 4.0 V. Daa Shee 10 Rev. 1.9, 2007-07-30
BUC Pin 3 R Pro1 Pin 5 R VCC1 22 Ω R VCC2 28 Ω 200 Ω GND V Ref 2.8 V GND Error Amp. R VCC3 39.7 Ω R VCC4 10.3 Ω GND Error-Signal Error-Ramp V hov 1.2 V PWM Comp. = GND OV Comp. H when Error-Signal < Error-Ramp L when T j > 175 C H when H when OV a UV a V BOOST Oupu Sage OFF when H R Error-FF & Q OFF when H NOR1 >1 _ UV Comp. = GND L when Overcurren R S V huv 4 V PWM-FF & & Q Q R Pin 1 V max Oscillaor Ramp V high V min r f r Schmi-Trigger 1 V low r f r Clock S & Q NAND 2 & H = OFF OC Comp. V hoc 18 mv = R Sense 18 mω Gae Driver Supply INV H = 1 ON Gae Driver V S Pin 8 BDS Pin 6 Power D-MOS BUO Pin 7 AEA03316.VSD Figure 4 Buck Converer Block Diagram Daa Shee 11 Rev. 1.9, 2007-07-30
V O V and Error Error Volage V max V min OCLK H L PWM H L I BUO I BUOC I DBU V BUO V S Load-Curren Increasing wih Time; Conrolled by he Error Amp Overcurren Threshold Exceeded Conrolled by he Overcurren Comp AED02673_6365 Figure 5 Mos Imporan Waveforms of he Buck Converer Circui Daa Shee 12 Rev. 1.9, 2007-07-30
Applicaion Circui D1 V Ba C L + ZD1 C S 10 µf 36 V 220 nf 8 V S R CO 47 kω 3 BUC Biasing and V REF Buck Converer TLE 6365 G BDS BUO 6 7 C BOT 10 nf L BU 220 µh DBU C BU1 100 µf + C BU2 220 nf C CO 470 nf V Inernal 5 R R 100 kω 1 R Reference Curren Generaor and Oscillaor GND 4 Undervolage Rese Generaor RO 2 Rese Oupu Device Type Supplier Remarks D1 DBU L BU L BU BAW78C SS14 B82476-A1224-M DO3316P-224 Infineon - Epcos Coilcraf 200 V; 1 A; SOT89 Schoky; 100 V; 1 A 220 µh; 0.8 A; 0.53 Ω 220 µh; 0.8 A; 0.61 Ω AEA03310.VSD Figure 6 Applicaion Circui Daa Shee 13 Rev. 1.9, 2007-07-30
Diagrams: Oscillaor and Boos/Buck-Converer Performance In he following he behaviour of he Boos/Buck-converer and he oscillaor is shown. Efficiency Buck vs. Boos Volage Oscillaor Frequency Deviaion vs. Juncion Temperaure η 95 % AED03017 f OSC 10 khz AED03016 90 = 5 V 5 Referred o f OSC a T = 25 C j 85 0 80 75 I Load = 120 ma 80 ma -5 70 40 ma -10 65 5 15 25 V 30 V S -15-50 -25 0 25 50 75 100 C 150 T j Feedback Volage vs. Juncion Temperaure 5.15 V 5.10 AED03356.VSD Buck Overcurren Threshold vs. Juncion Temperaure I OC 1.4 A 1.3 AED03018 5.05 5.00 4.95 I BUO = 400 ma 1.2 1.1 4.90 4.85 1 0.9 (Buck-Converer) I BUOC 4.80-50 -25 0 25 50 75 100 C 150 T j 0.8-50 -25 0 25 50 75 100 C 150 T j Daa Shee 14 Rev. 1.9, 2007-07-30
Curren Consumpion vs. Juncion Temperaure Oscillaor Frequency vs. Resisor beween R and GND I Boos 3 ma AED02940 f OSC 1000 khz AED02982 2.5 500 2 Boos ON Buck ON I BO boos = 0 ma I CC = 0 ma 200 100 @T j = 25 C 1.5 50 1 20 0.5-50 -25 0 25 50 75 100 C 150 T j 10 5 10 20 50 100 200 kω 1000 R R Efficiency Buck vs. Load Buck ON Resisance vs. Juncion Temperaure η 90 % 85 80 RT, HT CT AED02942 R ON 1000 mω 800 700 600 R BUON @ I BUO = 600 ma AED03355.VSD 500 75 400 300 70 200 100 65 50 150 ma 250 I LOAD 0-50 -25 0 25 50 75 100 C 150 T j Daa Shee 15 Rev. 1.9, 2007-07-30
Package Oulines ±0.07 0.175 (1.45) 1.75 MAX. 0.35 x 45 1) 4-0.2 0.19+0.06 8 MAX. 0.41 1.27 +0.1-0.06 0.1 B 0.2 M A B 8x 6 ±0.2 0.64 ±0.25 8 5 Index Marking 1 4 5 1) -0.2 A 1) Does no include plasic or meal prorusion of 0.15 max. per side 2) Lead widh can be 0.61 max. in dambar area GPS01229 Figure 7 PG-DSO-8-16 (Plasic Dual Small Ouline) Green Produc (RoHS complian) To mee he world-wide cusomer requiremens for environmenally friendly producs and o be complian wih governmen regulaions he device is available as a green produc. Green producs are RoHS-Complian (i.e Pb-free finish on leads and suiable for Pb-free soldering according o IPC/JEDEC J-STD-020). You can find all of our packages, sors of packing and ohers in our Infineon Inerne Page Producs : hp://www.infineon.com/producs. SMD = Surface Mouned Device Dimensions in mm Daa Shee 16 Rev. 1.9, 2007-07-30
Revision Hisory Version Dae Changes Rev. 1.9 2007-07-30 Iniial version of RoHS-complian derivae of TLE 6365 Page 1: AEC cerified saemen added Page 1 and Page 16:RoHS compliance saemen and Green produc feaure added Page 1 and Page 16: Package changed o RoHS complian version Legal Disclaimer and Infineon Logo updaed Daa Shee 17 Rev. 1.9, 2007-07-30
Ediion 2007-07-30 Published by Infineon Technologies AG 81726 Munich, Germany 2007 Infineon Technologies AG All Righs Reserved. Legal Disclaimer The informaion given in his documen shall in no even be regarded as a guaranee of condiions or characerisics. Wih respec o any examples or hins given herein, any ypical values saed herein and/or any informaion regarding he applicaion of he device, Infineon Technologies hereby disclaims any and all warranies and liabiliies of any kind, including wihou limiaion, warranies of non-infringemen of inellecual propery righs of any hird pary. Informaion For furher informaion on echnology, delivery erms and condiions and prices, please conac he neares Infineon Technologies Office (www.infineon.com). Warnings Due o echnical requiremens, componens may conain dangerous subsances. For informaion on he ypes in quesion, please conac he neares Infineon Technologies Office. Infineon Technologies componens may be used in life-suppor devices or sysems only wih he express wrien approval of Infineon Technologies, if a failure of such componens can reasonably be expeced o cause he failure of ha life-suppor device or sysem or o affec he safey or effeciveness of ha device or sysem. Life suppor devices or sysems are inended o be implaned in he human body or o suppor and/or mainain and susain and/or proec human life. If hey fail, i is reasonable o assume ha he healh of he user or oher persons may be endangered.