View L5956PD_4339590.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

L5956
Multifunction voltage regulator for car radio
Features
Four outputs: - 8.5V @ 500mA - 5V @ 300mA Permanent - 5V @ 800mA - 3.3V @ 800mA 2A high side driver Reset function Ignition comparator Load dump protection Thermal shutdown Overcurrent limitation All pins ESD protected Device summary
Order code Package
PowerSO20 (slug-up)
Multiwatt15 (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 stand-by.
Table 1.
Packing Tube Tube Tape and reel
L5956 L5956PD L5956PDTR
Multiwatt-15 (vertical) PowerSO-20 PowerSO-20
August 2007
Rev 1
1/16
www.st.com 1
Contents
L5956
Contents
1 Block diagram and pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 1.2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 2.2 2.3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 4 5
Timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2/16
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3/16
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. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Typical application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Timing diagram of regulators and power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Backup and reset diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hold and thermal protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Ignition buffer diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Protection of the power switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Short circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 PowerSO20 (slug-up) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . 13 Multiwatt 15 (vertical) mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . 14
4/16
L5956
Block diagram and pins description
1
1.1
Figure 1.
Block diagram and pins description
Block diagram
Block diagram
VINI (MAIN) EN_SW REG1 EN 1_3(8.5V_5V) REG2 BU VIN2 REG3 REG 3(5V) REG 2(PERM)(5V) REG 1(8.5V) POWER SWITCH SW
REG4 EN 4(3.3V)
REG 4(3.3V) HOLD
THERMAL PROTECTION
DUMP LOAD PROTECTION RESET BUFFER RES CRES
IGNIN
IGNITION BUFFER
IGNOUT
D02AU1342
1.2
Figure 2.
Pins description
Pins connection (top view)
15 14
VIN2 REG3(5V) N.C. REG1(8.5V) SW N.C. VIN1 BU REG2(5V) HEATSINK 20 19 18 17 16 15 14 13 12 11
D02AU1343
VIN2 REG3 REG1 SWITCH BU REG2 VIN1 GND HOLD EN SW EN REG1,3 EN REG4 CRES RES REG4
D03AU1513
1 2 3 4 5 6 7 8 9 10
REG4(3.3V) IGNIN IGNOUT RES CRES ENREG4(3.3V) ENREG1_3(8.5V_5V) EN_SW HOLD GND
13 12 11 10 9 8 7 6 5 4 3 2 1
PowerSO Multiwatt
5/16
Electrical specifications
L5956
2
2.1
Electrical specifications
Absolute maximum ratings
Table 2.
Symbol VSDC VSTR IO Top Tstg Tj Pd
Absolute maximum ratings
Parameter DC operating supply voltage Transient supply voltage Output current Operating temperature range Storage temperature Junction temperature Power dissipation at Tcase = 85C Value 30 50 internally limited -40 to 85 -55 to 150 -55 to 150 43 C C C W Unit V V
2.2
Thermal data
Table 3.
Symbol Rth j-case
Thermal data
Parameter Thermal resistance junction to case Max. PowerSO Multiwatt 1.5 1.8 Unit C/W
2.3
Table 4.
Symbol
Electrical characteristics
Electrical characteristics (VS = 14.4V; Tamb = 25C; unless otherwise specified)
Parameter Test condition Min. Typ. Max. Unit
INPUT SUPPLIES Vin1 Vin2 Vin1 Vin2 Input supply voltage 1 Input supply voltage 2 Input supply voltage 1 Input supply voltage 2 Operating Operating Reverse polarity Reverse polarity Stand-by (-20C to 85C) IGNIN = 5V Iq Total quiescent current REGx = 5V, REGsw = 5V, IGNIN = 5V Stand-by (-20C to 85C) IGNIN = 5V, VCC = 18V Load dump Vin1 Battery overvoltage Vin1 18 5 100 20 170 22 9 6 18 18 non operating non operating 60 A mA A V V V
6/16
L5956 Table 4.
Symbol Load dump Vin2 REGULATOR 1 Vo (REG 1) V V Vi Iq PSRR Vdrop Im REGULATOR 2 Vo (ST BY) V V Vi Iq PSRR Vdrop Vdrop Im REGULATOR 3 Vo (REG 3) V V Vi Iq PSRR Vdrop Im Output voltage 5V Line regulation Line regulation Load regulation Quiescent current Supply voltage ripple rejection Drop out voltage Current limit Vin2 = 7 to 18V; I = 800mA Vin2 = 6 to 18V; I = 10mA Ireg3 = 1 to 800mA Ireg3 = 10mA f = 1KHz; Vin1 = 1.5Vpp; Io = 800mA Ireg3 = 800mA (1) Rshort = 0.5 1 50 4.75 Output voltage 5V Line regulation Line regulation Load regulation Quiescent current Supply voltage ripple rejection Drop out voltage Drop out voltage Current limit Vin1 = 7 to 18V; I = 300mA Vin1 = 6 to 18V; I = 10mA Ireg2 = 1 to 300mA Ireg2 = 10mA f = 1KHz; Vin1 = 1.5Vpp; Io = 300mA Ireg2 = 300mA (1) Ireg2 = 100mA (1) Rshort = 0.5 400 50 4.75 Output voltage 8.5V Line regulation Line regulation Load regulation Quiescent current Supply voltage ripple rejection Drop out voltage Current limit Vin1 = 10 to 18V; I = 500mA Vin1 = 9.3 to 18V; I = 10mA Ireg1 = 1 to 500mA Ireg1 = 10mA f = 1KHz; Vin1 = 1.5Vpp; Io = 500mA Ireg1 = 500mA (1) Rshort = 0.5 0.6 50 8
Electrical specifications Electrical characteristics (continued) (VS = 14.4V; Tamb = 25C; unless otherwise specified)
Parameter Battery overvoltage Vin2 Test condition Min. 18 Typ. 20 Max. 22 Unit V
8.5
9 50 50 100 5
V mV mV mV mA dB
0.6 1.2
V A
5
5.25 50 50 100 3
V mV mV mV mA dB
1.5 0.6 800
V V mA
5
5.25 50 50 100 5
V mV mV mV mA dB
1.5 2
V A
7/16
Electrical specifications Table 4.
Symbol REGULATOR 4 Vo (REG 4) V V Vi Iq PSRR Vdrop Im Output voltage 3.3V Line regulation Line regulation Load regulation Quiescent current Supply voltage ripple rejection Drop out voltage Current limit Vin2 = 6 to 18V; I = 800mA Vin2 = 6 to 18V; I = 10mA Ireg4 = 1 to 800mA Ireg4 = 10mA f = 1KHz; Vin1 = 1.5Vpp; Io = 800mA Ireg4 = 800mA(1) Rshort = 0.5 1 50 2.5 2 3.15 3.3 3.45 50 50 100 5
L5956
Electrical characteristics (continued) (VS = 14.4V; Tamb = 25C; unless otherwise specified)
Parameter Test condition Min. Typ. Max. Unit
V mV mV mV mA dB V A
POWER SWITCH VdropSW IpSW1 IpSW2 SWDEL Drop voltage power switch Peak current power switch Peak current power switch Delay protection IdcSW = 1.8A max. Peak time < 15ms Peak time > 40ms 2 1 15 0.5 3.5 2 40 V A A ms
RESET BUFFER (with push-pull buffer) RES RES VHYS(RES) IHsource (RES) ILsink (RES) RES delay TRES ICharge IDischarge VTH(F) VTH(R) Vol Voh HOLD SIGNAL VlowI Vlowh Vlowl VHOLD R Hold output low for Vin1 low Hold output high for Vin1 normal Hold output low for Vin1 high Low VIN1 threshold Low detection Normal high detection low detection VIN1 Low TH. 10 22 9 50 9.5 150 10 200 9 18 V V V V mV RES falling RES rising Hysteresis of reset buffer High level source current Low level sink current Cres = 47nF Reset rise and fall time Charge current Discharge current Falling voltage threshold Rising voltage threshold Low level High level ISINK(RES) = 1mA 4.5 R = 10k CRES = 0V CRES = 5V C = 15pF 3 1 1 2.5 1.2 2.8 0.3 Vreg2 5 Reset = 0V Reset = 5V Vreg2 = 5V Vreg2 = 5V 4.6 4.65 50 1000 14 10 4.7 4.8 100 1300 16 4.8 4.95 200 1600 18 60 50 10 3 1.4 3.5 0.5 5.5 V V mV A mA ms s A mA V V V V
VHYS (HOLD_L) Hysteresis low TH.
8/16
L5956 Table 4.
Symbol VHOLD F
Electrical specifications Electrical characteristics (continued) (VS = 14.4V; Tamb = 25C; unless otherwise specified)
Parameter High VIN1 threshold Test condition VIN1 High TH. Min. 18 200 Typ. 20 Max. 22 500 Unit V mV
VHYS (HOLD_M) Hysteresis high TH. IGNITION BUFFER (push-pull with Schmidt trigger) IGNIN IGNIN Vhys(IGNout) ILsink(IGNout) Vol Voh IGNRISE IGNFALL ICLAMP IGNIN IGNout falling IGNout rising Hysteresis of ignition buffer IGNout = 0V IGNout = 5V ILsink (IGNout) = 1mA
1.03 1.18
1.17 1.27 50
1.28 1.33
V V mV
IHsource(IGNout) High level source current Low level sink current Low level High level Rising time Fall time Input clamp current Input voltage
1000 10
1500 15 0.3
2000 20 0.5 5.5 10 10 2
A mA V V s s mA V
4.5 C = 15pF C = 15pF VCC < VIGN < 50V Operative 0
Vreg2
50
ENABLE INPUT (regulators 1,3,4 and power switch) VTH ENIN Voltage threshold Input voltage Operative 1.3 0 1.8 2.3 5 V 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 F REG 1 100 nF REG1 EN 1 REG 2 470 F BU VIN2 REG2 Cfilt (*) REG 3 REG3 REG 4 EN 4 REG4 HOLD to Processor THERMAL PROTECTION 10 K K DUMP LOAD PROTECTION RESET BUFFER IGNITION BUFFER Cfilt (*) 10 K Cfilt (*) Cfilt (*)
470 F
RES CRES to Processor 47 nF
IGNIN
1 nF IGNOUT
AC00427
(*) Recommended output filtering capacitors: C range = 5 F to 100 F, ESR range= 0.5 to 10 (T= -40 C to +85 C)
9/16
Timing diagrams
L5956
3
Timing diagrams
Figure 4. Timing diagram of regulators and power switch
DUMP VM VIN1=VIN2 9V
8.5V REG1(8.5V)
5V REG3(5V)
EN1-3
3.3V REG4(3.3V)
EN4
5V REG2(5V)
VM POWER SWITCH 9V
EN-SW
D02AU1420B
18V < VM 22V
Figure 5.
Backup and reset diagram
14
VBATT
5 4.8 4.7
5V PERM
BACKUP CAP.
t 5 3 CDELAY
RESET
t
D02AU1422
t
10/16
L5956 Figure 6. Hold and thermal protection
DUMP 9.5V 22 18 VIN1 9 8.5V 5V 3.3V
Timing diagrams
HOLD
5
ON TEMPERATURE PROTECTION 8.5V REG1(8.5V)
T160
5V REG2(5V)
5V REG3(5V)
3.3V REG4(3.3V)
EN1-3 EN4
5V
D02AU1423A
Figure 7.
Ignition buffer diagram
50V IGNITION INPUT 1.27V 1.17V
IGNITION OUTPUT LOAD DUMP 14V VIN1
D02AU1424
Figure 8.
Protection of the power switch
VSW
16V
DELAYED
NOT DELAYED
IN CASE VIN1 <16V
1.5A
3A
D02AU1425
ISW
11/16
Timing diagrams Figure 9. Short circuit diagram
SHORT TO GND REG1 SHORT TO GND REG2 SHORT TO GND REG3 SHORT TO GND REG4 SHORT TO GND SWITCH
L5956
HOLD
12/16
L5956
Package information
4
Package information
In order to meet environmental requirements, ST offers this device in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 10. PowerSO20 (slug-up) mechanical data and package dimensions
DIM. A A2 A4 A5 a1 b c D (1) D1 D2 E E1 (1) E2 E3 e e3 G H h L N R S V MIN. 3.25 3 0.8 0.15 0.030 0.4 0.23 15.8 9.4 13.9 10.9 5.8 1.12 0 15.5 0.8 0.6 0 (min.) 8 (max.) 5 (min.) 7 (max.) mm TYP. 3.15 0.2 MAX. 3.5 3.3 1 0.25 -0.040 0.53 0.32 16 9.8 14.5 11.1 2.9 6.2 1.42 MIN. 0.128 0.118 0.031 0.006 0.0012 0.016 0.009 0.622 0.370 0.547 0.429 0.228 0.044 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 0.024 inch TYP.
OUTLINE AND MECHANICAL DATA
1
1.27 11.43
0.1 0 15.9 0.61 1.1 1.1 0.031 10 (max)
(1) OD a E1Odo not include mold flash or protusions. nd - Mold flash or protusions shall not exceed 0.15mm (0.006O) - Critical dimensions: O O EO, a1O,OeO OG and O.
PowerSO20 (SLUG UP)
N
N
H A5
E3 A2 A
R A4 c V
b e3 h x 45u
e
D2 (x2) DETAIL A
E2 E
M
1
10
DETAIL A E2 E1
0.35 Gage Plane
a1 S L
-CSEATING PLANE G C
20
D1
(COPLANARITY)
11
PSO20DME
D
0088529 C
13/16
Package information Figure 11. Multiwatt 15 (vertical) mechanical data and package dimensions
DIM. A5 B C D E F G G1 H1 H2 L L1 L2 L3 L4 L7 M M1 S S1 Dia1 21.9 21.7 17.65 17.25 10.3 2.65 4.25 4.73 1.9 1.9 3.65 4.55 5.08 17.5 10.7 22.2 22.1 0.49 0.66 1.02 17.53 19.6 20.2 22.5 22.5 18.1 17.75 10.9 2.9 4.85 5.43 2.6 2.6 3.85 0.862 0.854 0.695 0.679 0.406 0.104 0.167 0.186 0.075 0.075 0.144 0.179 0.200 0.689 0.421 0.874 0.87 1.27 17.78 1 0.55 0.75 1.52 18.03 0.019 0.026 0.040 0.690 0.772 0.795 0.886 0.886 0.713 0.699 0.429 0.114 0.191 0.214 0.102 0.102 0.152 0.050 0.700 2.65 1.6 0.039 0.022 0.030 0.060 0.710 mm MIN. TYP. MAX. MIN. inch TYP. MAX. 0.197 0.104 0.063
L5956
OUTLINE AND MECHANICAL DATA
Multiwatt15 (Vertical)
0016036 J
14/16
L5956
Revision history
5
Revision history
Table 5.
Date 29-Aug-2007
Document revision history
Revision 1 Initial release. Changes
15/16
L5956
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. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER'S OWN RISK.
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.
(c) 2007 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 - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com
16/16

▲Up To Search▲

Price & Availability of L5956PD

	To Download L5956PD Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .