L5956

L5956 Multifunction voltage regulator for car radio Features ■ Four outputs: – 8.5 V @ 500 mA – 5 V @ 300 mA permanent – 5 V @ 800 mA – 3.3 V @ 800 mA ■ 2 A high side driver ■ Reset function ■ Ignition comparator ■ Load dump protection ■ Thermal shutdown ■ Overcurrent limitation ■ All pins ESD protected Table 1. '!0'03 '!0'03 PowerSO20 (slug-up) Multiwatt 15 (vertical) Description The L5956 contains a triple voltage regulator and a power switch. The IC includes a monitoring circuit for detection. The IC features a very low quiescent under standby. Device summary Order code Package Packing L5956 Multiwatt 15 (vertical) Tube L5956PD PowerSO20 Tube L5956PDTR PowerSO20 Tape and reel September 2013 Doc ID 13852 Rev 4 1/17 www.st.com 1 Contents L5956 Contents 1 2 Block diagram and pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 2/17 Doc ID 13852 Rev 4 L5956 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Doc ID 13852 Rev 4 3/17 List of figures L5956 List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. 4/17 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Typical application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Maximum ESR for stability valid for all the regulators outputs . . . . . . . . . . . . . . . . . . . . . . 10 Timing diagram of regulators and power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Backup and reset diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Hold and thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Ignition buffer diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Protection of the power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Short circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 PowerSO20 (slug-up) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . 14 Multiwatt 15 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . 15 Doc ID 13852 Rev 4 L5956 Block diagram and pins description 1 Block diagram and pins description 1.1 Block diagram Figure 1. Block diagram 0/7%2 37)4#( 6).)-!). 37 %.?37 2%' 2%'6 2%' 2%'0%2- 6 2%' 2%'6 2%' 2%'6 %.2%'?6?6 "5 6). %.2%'6 (/,$ 4(%2-!, 02/4%#4)/. $5-0,/!$ 02/4%#4)/. 2%3%4 "5&&%2 2%3 #2%3 )'.)4)/. "5&&%2 )'.). )'./54 1.2 Pins description Figure 2. Pins connection (top view) 6).   2%'6 2%'6   )'.). .#   )'./54 2%'6   2%3 0OWER3/ -ULTIWATT 37   #2%3 .#   %.2%'6 6).   %.2%'?6?6 "5   %.?37 2%'6   (/,$ (%!43).+   '.$ '!0'03 $!5  6).  2%'  2%'  37)4#(  "5  2%'  6).  '.$  (/,$  %.37  %.2%'   %.2%'  #2%3  2%3  2%' '!0'03 Doc ID 13852 Rev 4 5/17 Electrical specifications L5956 2 Electrical specifications 2.1 Absolute maximum ratings Table 2. Absolute maximum ratings Symbol 2.2 Parameter Value Unit VSDC DC operating supply voltage 30 V VSTR Transient supply voltage 50 V IO Output current internally limited Top Operating temperature range -40 to 85 °C Tstg Storage temperature -55 to 150 °C Tj Junction temperature -55 to 150 °C Pd Power dissipation at Tcase = 85 °C 43 W PowerSO Multiwatt Unit Thermal data Table 3. Thermal data Symbol Rth j-case 2.3 Parameter Thermal resistance junction-to-case Max. 1.5 1.8 °C/W Electrical characteristics VS = 14.4 V; Tamb = 25 °C; unless otherwise specified. Table 4. Electrical characteristics Symbol Parameter Test condition Min. Typ. Max. Unit V INPUT SUPPLIES Vin1 Input supply voltage 1 Operating 9 - 18 Vin2 Input supply voltage 2 Operating 6 - 18 Vin1 Input supply voltage 1 Reverse polarity Non operating Vin2 Input supply voltage 2 Reverse polarity Non operating (1) Iq 6/17 V (1) Total quiescent current Standby (-20° C to 85 °C) IGNIN = 5 V - - 60 µA REGx = 5 V, REGsw = 5 V, IGNIN = 5 V - 5 - mA Standby (-20 °C to 85 °C) IGNIN = 5 V, VCC = 18 V - 100 170 µA Doc ID 13852 Rev 4 L5956 Electrical specifications Table 4. Electrical characteristics (continued) Symbol Parameter Test condition Min. Typ. Max. Unit Load dump Vin1 Battery overvoltage Vin1 18 20 22 V Load dump Vin2 Battery overvoltage Vin2 18 20 22 V Output voltage 8.5 V - 8 8.5 9 V V Line regulation Vin1 = 10 to 18 V; I = 500 mA - - 50 mV V Line regulation Vin1 = 9.3 to 18 V; I = 10 mA - - 50 mV Vi Load regulation Ireg1 = 1 to 500 mA - - 100 mV Quiescent current Ireg1 = 10 mA - - 5 mA PSRR Supply voltage ripple rejection f = 1 kHz; Vin1 = 1.5 Vpp; Io = 500 mA 50 - - dB Vdrop Drop out voltage Ireg1 = 500 mA (2) - - 0.6 V Current limit Rshort = 0.5  0.6 - 1.2 A Output voltage 5 V - 4.75 5 5.25 V V Line regulation Vin1 = 7 to 18 V; I = 300 mA - - 50 mV V Line regulation Vin1 = 6 to 18 V; I = 10 mA - - 50 mV Vi Load regulation Ireg2 = 1 to 300 mA - - 100 mV Quiescent current Ireg2 = 10 mA - - 3 mA PSRR Supply voltage ripple rejection f = 1 kHz; Vin1 = 1.5 Vpp; Io = 300 mA 50 - Vdrop Drop out voltage Ireg2 = 300 mA (2) - - 1.5 V Drop out voltage Ireg2 = 100 mA (2) - - 0.6 V Current limit Rshort = 0.5  400 - 800 mA Output voltage 5V - 4.75 5 5.25 V V Line regulation Vin2 = 7 to 18 V; I = 800 mA - - 50 mV V Line regulation Vin2 = 6 to 18 V; I = 10 mA - - 50 mV Vi Load regulation Ireg3 = 1 to 800 mA - - 100 mV Quiescent current Ireg3 = 10 mA - - 5 mA PSRR Supply voltage ripple rejection f = 1 kHz; Vin1 = 1.5 Vpp; Io = 800 mA 50 - - dB Vdrop Drop out voltage Ireg3 = 800 mA (2) - - 1.5 V Current limit Rshort = 0.5  1 - 2 A REGULATOR 1 Vo (REG 1) Iq Im REGULATOR 2 Vo (ST BY) Iq Vdrop Im dB REGULATOR 3 Vo (REG 3) Iq Im Doc ID 13852 Rev 4 7/17 Electrical specifications Table 4. L5956 Electrical characteristics (continued) Symbol Parameter Test condition Min. Typ. Max. Unit 3.15 3.3 3.45 V REGULATOR 4 Output voltage 3.3 V - V Line regulation Vin2 = 6 to 18 V; I = 800 mA - - 50 mV V Line regulation Vin2 = 6 to 18 V; I = 10 mA - - 50 mV Vi Load regulation Ireg4 = 1 to 800 mA - - 100 mV Quiescent current Ireg4 = 10 mA - - 5 mA PSRR Supply voltage ripple rejection f = 1 kHz; Vin1 = 1.5 Vpp; Io = 800 mA 50 - - dB Vdrop Drop out voltage Ireg4 = 800 mA(2) - - 2.5 V Current limit Rshort = 0.5  1 - 2 A Vo (REG 4) Iq Im POWER SWITCH VdropSW Drop voltage power switch IdcSW = 1.8A max. - - 0.5 V IpSW1 Peak current power switch Peak time  15 ms 2 - 3.5 A IpSW2 Peak current power switch Peak time  40 ms 1 - 2 A SWDEL Delay protection - 15 - 40 ms RESET BUFFER (with push-pull buffer) RES RES falling Vreg2 = 5 V 4.6 4.7 4.8 V RES RES rising Vreg2 = 5 V 4.65 4.8 4.95 V VHYS(RES) Hysteresis of reset buffer - 50 100 200 mV IHsource (RES) High level source current Reset = 0 V 1000 1300 1600 µA ILsink (RES) Low level sink current Reset = 5 V 14 16 18 mA RES delay Cres = 47nF - 10 - 60 ms Reset rise and fall time R = 10 k, C = 15 pF - - 50 µs Charge current CRES = 0 V 3 5 10 µA IDischarge Discharge current CRES = 5 V 1 - 3 mA VTH(F) Falling voltage threshold - 1 1.2 1.4 V VTH(R) Rising voltage threshold - 2.5 2.8 3.5 V Vol Low level ISINK(RES) = 1 mA - 0.3 0.5 V Voh High level - 4.5 Vreg2 5.5 V VlowI Hold output low for Vin1 low Low detection - - 9 V Vlowh Hold output high for Vin1 normal Normal high detection 10 - 18 V Vlowl Hold output low for Vin1 high low detection 22 - - V TRES ICharge HOLD SIGNAL 8/17 Doc ID 13852 Rev 4 L5956 Table 4. Electrical specifications Electrical characteristics (continued) Symbol VHOLD R Parameter Low VIN1 threshold VHYS (HOLD_L) Hysteresis low TH. VHOLD F High VIN1 threshold VHYS (HOLD_M) Hysteresis high TH. Test condition Min. Typ. Max. Unit VIN1 Low TH. 9 9.5 10 V - 50 150 200 mV VIN1 High TH. 18 20 22 V - 200 500 mV IGNITION BUFFER (push-pull with Schmidt trigger) IGNIN IGNout falling - 1.03 1.17 1.28 V IGNIN IGNout rising - 1.18 1.27 1.33 V Hysteresis of ignition buffer - - 50 - mV IGNout = 0 V 1000 1500 2000 µA Low level sink current IGNout = 5 V 10 15 20 mA Vol Low level ILsink (IGNout) = 1 mA - 0.3 0.5 V Voh High level - 4.5 Vreg2 5.5 V IGNRISE Rising time C = 15 pF - - 10 µs IGNFALL Fall time C = 15 pF - - 10 µs ICLAMP Input clamp current VCC < VIGN < 50 V - - 2 mA IGNIN Input voltage Operative 0 - 50 V 1.3 1.8 2.3 V 0 - 5 V Vhys(IGNout) IHsource(IGNout) High level source current ILsink(IGNout) ENABLE INPUT (regulators 1,3,4 and power switch) VTH Voltage threshold - ENIN Input voltage Operative 1. “Non operating” should be intended as a condition outside the absolute maximum ratings defined for the IC. As such, if the device is operated under such conditions, it is not guaranteed that the electrical parameters are inside the specification range. 2. 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. Doc ID 13852 Rev 4 9/17 Electrical specifications Figure 3. L5956 Typical application circuit 6S 6). 37 0/7%2 37)4#( %.37 —& —& 2%' N& 2%' %.2%'  #FILT  2%' —& 2%' "5 #FILT  6). 2%' 2%' 2%' +7 #FILT  2%' %.2%' #FILT  (/,$ TO—0ROCESSOR 4(%2-!, 02/4%#4)/. + +7 )'.). $5-0,/!$ 02/4%#4)/. 2%3%4 "5&&%2 2%3 #2%3 )'.)4)/. "5&&%2 TO—0ROCESSOR N& N& )'./54  2ECOMMENDEDOUTPUTFILTERINGCAPACITORSFORALLTHEREGULATORS#RANGE—&TO—&%32RANGE 7TO74  #TO # '!0'03 Figure 4. Maximum ESR for stability valid for all the regulators outputs %32 ;7= -AXIMUM%32   3TABLEREGION  -INIMUM%32     #;—&= '!0'03 10/17 Doc ID 13852 Rev 4 L5956 3 Timing diagrams Timing diagrams Figure 5. Timing diagram of regulators and power switch $5-0 66).6). 6 6 2%'6 6 2%'6 %.2%'  6 2%'6 %.2%' 6 2%'6 60/7%237)4#( 6 %. 37 66 -a6 '!0'03 Figure 6. Backup and reset diagram     6"!44 60%2- "!#+50#!0 T   #$%,!9 2%3%4 T T Doc ID 13852 Rev 4 '!0'03 11/17 Timing diagrams L5956 Figure 7. Hold and thermal protection $5-0 6  6 6  6). 6   (/,$ /. 4  4%-0%2!452% 02/4%#4)/. 6 2%'6 6 2%'6 6 2%'6 6 2%'6 %.2%'  6 %.2%' '!0'03 Figure 8. Ignition buffer diagram 6 )'.)4)/. ).054 6 6 )'.)4)/. /54054 ,/!$$5-0 6 6). '!0'03 Figure 9. Protection of the power switch 637 6 $%,!9%$ ! ./4 $%,!9%$ ! ).#!3% 6).6 )37 '!0'03 12/17 Doc ID 13852 Rev 4 L5956 Timing diagrams Figure 10. Short circuit diagram 3(/244/'.$ 2%' 3(/244/'.$ 2%' 3(/244/'.$ 2%' 3(/244/'.$ 2%' 3(/244/'.$ 37)4#( (/,$ '!0'03 Doc ID 13852 Rev 4 13/17 Package information 4 L5956 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: www.st.com. ECOPACK® is an ST trademark. Figure 11. PowerSO20 (slug-up) mechanical data and package dimensions $)- DIM. ! A ! A2 ! A4 ! A5 A a1 Bb Cc $ D (1) $ D1 $ D2 % E % E1 (1) % E2 % E3 Ee E e3 ' G ( H Hh ,L . N 2 R 3 S 6 V MM mm 490 TYP. -). MIN.  3.25  3  0.8  0.15  0.030  0.4  0.23  15.8  9.4  3.15  0.2 -!8 MAX.  3.5  3.3  1  0.25  -0.040  0.53  0.32  16  9.8 -). MIN.  0.128  0.118  0.031  0.006  0.0012  0.016  0.009  0.622  0.370  14.5  11.1  2.9  6.2  1.42  0.547  0.429 INCH inch 490 TYP. -!8 MAX.  0.138  0.124  0.130  0.039  0.008  0.010  -0.0016  0.021  0.012  0.630  0.385  0.039  0.570  0.437  0.114  0.244  0.050  0.056  0.450  0.004  0.625  0.043  0.043  1  13.9  10.9  5.8  1.12  1.27  11.43  0  15.5  0.228  0.044   0.1 0   15.9 0.61  1.1   1.1 0.031 ƒPD[ 10¡ (max)  0.8  0.6 /54,).%!.$ OUTLINE AND -%#(!.)#!,$!4 ! MECHANICAL DATA  0.024 ƒPLQƒPD[ 0¡ (min.) 8¡ (max.) ƒPLQƒPD[ 5¡ (min.) 7¡ (max.) 0OWER3/3LUG UP PowerSO20 (SLUG UP) (1) ÒD and E1Ódo not include mold flash or protusions.  h$AND%vDONOTINCLUDEMOLDFLASHORPROTUSIONS - Mold flash or protusions shall not exceed 0.15mm (0.006Ó) -OLDFLASHORPROTUSIONSSHALLNOTEXCEEDMMv Critical dimensions: ÒEÓ,Òa1Ó,ÒeÓ and ÒGÓ. #RITICALDIMENSIONSh%vhAvhEvANDh'v N . H ( N . E3 % A2 ! Bb R 2 A4 ! A5 ! A ! cC V 6 e E A $%4!),! D2 (x2) DETAIL $X e3 E E2 % E % M - h x 45û HXß 1 10  DETAIL A $%4!),! E2 % 0.35  E1 % Gage Plane 'AGE0LANE a1 A S 3 L , - # CSEATING PLANE 3%!4).'0,!.% G '# C 20  D1 $ (COPLANARITY) #/0,!.!2)49 11  PSO20DME 03/$-% D $ 0088529 C # '!0'03 14/17 Doc ID 13852 Rev 4 L5956 Package information Figure 12. Multiwatt 15 (vertical) mechanical data and package dimensions $)- INCH MM -). 490 -!8 -). 490 -!8 !  "   #   $    %    &    '       '       (     ( , /54,).%!.$ -%#(!.)#!,$!4!         ,       ,    ,       ,        ,    -       -        3     3     $IA     -ULTIWATT6ERTICAL * '!0'03 Doc ID 13852 Rev 4 15/17 Revision history 5 L5956 Revision history Table 5. 16/17 Document revision history Date Revision Changes 29-Aug-2007 1 Initial release. 08-Jan-2010 2 Updated Figure 1, 2, 3, 5 and 7. Added Figure 4: Maximum ESR for stability valid for all the regulators outputs on page 10. 27-Jun-2011 3 Added Note 1 on page 9. 17-Sep-2013 4 Updated Disclaimer. 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