L9651

L9651 SMART QUAD SWITCH ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Modified VDMOS Power Stage (UDSBR > 80V) RDSON < 500 mOhm (Tj = 25°C) CMOS Compatible Inputs Enable Input (Reset) Outputs Capable of up to 2.2 Amperes Outputs Internally Clamped at 70V for Fast Inductive Load Switch Off Wide operating supply voltage from 4.7V up to 30V DIAGNOSTIC FUNCTIONS Open Load Detection (Output off, 100sfiltering time) Short to Ground Detection (Output off, 100s filtering time) Short to Battery Detection (Output on) Over temperature detection (Output on) Storage of last fault in 8 Bit - Serial Register Fault Signal Indication at Serial Data Out without need to read out the Serial Interface Daisy Chainable Serial Diagnostic PowerSO-20 ORDERING NUMBER: L9651 ■ Serial Interface Clock Frequency up to 500kHz DESCRIPTION The L9651 consists of four identical low side power switches. A serial diagnostic interface indicates failure mode of each switch (short circuit to VBAT or ground and open load or over temperature). BLOCK DIAGRAM VBAT Turn On Clock Data In Sync. Underv. Shutd. Serial Data Out References Serial Diagnostic Fault Detection Inputs 1..4 ● Logic Four Fold ● Gate Control ● ● ● Output 1..4 Reset ● Short Circuit Protection Ground September 2013 1/9 L9651 PIN CONNECTION (Top view) GND 1 20 N.C. 2 19 N.C. IN1 3 18 IN4 IN2 4 17 IN3 OUT1 5 16 OUT4 VBAT 6 15 R OUT2 7 14 OUT3 DO 8 13 DI CL 9 12 SY 10 11 GND GND SO20POW PIN FUNCTION N° Pin 1, 10, 11, 20 GND Ground 2, 19 N.C. Not Connected 3 IN1 Input 1 4 IN2 Input 2 5 OUT1 Output 1 6 VBAT Supply Voltage 7 OUT2 Output 2 8 DO Serial Data Out 9 CL Clock 12 SY Synchronization 13 DI Serial Data In 14 OUT3 2/9 GND Function Output 3 15 R 16 OUT4 Reset 17 IN3 Input 3 18 IN4 Input 4 Output 4 L9651 ABSOLUTE MAXIMUM RATINGS Symbol TSTG TJ Parameter Value Unit Storage Temperature -55 to 150 o Operating Junction Temperature -40 to 150 o VBAT DC Supply Voltage VBATtr C C -2 to 30 V Transient Supply Voltage; t < 400ms 40 V VOUT Output Voltage 65 V VOUTtr Transient Output Voltage; during clamping 78 V Output Clamping energy; repetition rate < 100 Hz 10 mJ Output reverse current 2 A -0.3 to 6.5 V -0.3 to 6.5 V ECL -IOUT VR,VINi,VDI, Control Input voltage VCLVSY VDO Control Output voltage THERMAL DATA Symbol Parameter Rth j-case Thermal Resistance Junction to Case Value Unit 2.5 °C/W ELECTRICAL CHARACTERISTCS (6.5V < VBAT < 25V, -40 < TJ < 150°C) Symbol Parameter Test Condition Min. Typ. Max. Unit 4.7 V 15 mA VBAT = 14V TJ = 25°C; Iout = 1A 500 m VBAT = 14V TJ = 150°C; Iout = 1A 850 m 76 V Supply Voltage VBATU IBAT Turn on threshold voltage Supply current 2.0 VBAT = 14V VOUTi > 0V 4 10 Output stage RDSON On resistance VCL Clamping voltage, inductive load Iout = 0.5 A 63 70 IOUTi Over current shutdown (Shutdown latch resets with pos. slope at INi) TJ = -40°C 3.0 4.3 A TJ = 25°C 2.5 3.7 A TJ = 150°C 2.2 3.5 A Output leakage current see: Open load diagnostic current 3/9 L9651 ELECTRICAL CHARACTERISTCS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit Logic Inputs IN1...IN4, SY, CL, DI, R VINiLH VSYLH VCLLH VRLH VDILH Input High level 3.5 6.5 V VINiHL VSYHL VCLHL VRHL VDIHL Input Low level -0.3 1.5 V VINih VSYh VCLh VRh VDIh Hysteresis 0.2 1 V - IINi - ISY - IC L - IR Input current IN1 ... IN4, SY, CL, R (Internal pull up current source) VINi = 0V 10 120 A VSY = 0V VCL = 0V VR = 0V 10 - IDI Input current DI (Internal pull up current source) VDI = 0V 120 40 80 220 250 A Timing tdon Turn on delay 7.5 s tdoff Turn off delay 7.5 s son Switch on slew rate 10 V/s soff Switch off slew rate 15 V/s toc Over current detection time 0.5 s tv Open load filtering time 60 100 200 s tv Short to GND filtering time 60 100 200 s fCL Serial clock frequency 0 500 kHz tvDV DO: Datavalidtime 0.03 1 s tvset DI: Datasettlingtime 0.5 s tvhold DI: Dataholdtime 0 s Diagnostic VBATDU Under voltage threshold 4.7 7.5 V 0 0.45 V 10 A Serial Data output (External pull up required) VDO | IDO | 4/9 Data output low voltage Data output leakage current IDO < 1.6mA 7.5V < VBAT < 22V L9651 ELECTRICAL CHARACTERISTCS (continued) Symbol Parameter Test Condition Min. Typ. Max. Unit Output voltage monitoring Output off VOL Open load threshold voltage (fault detected if VOUTi < VOL) 7.5V < VBAT < 22V 2/3VBAT VSG Short to GND threshold voltage (fault detected if VOUTi < VSG) 7.5V < VBAT < 22V 1/3VBAT Open load output voltage IOUT = 0 A VINi = 5V 7.5V < VBAT < 22V 1/2VBAT - IOUTi Output current VOUT = 1V VINi = 5V 50 100 150 A IOUTi Output current VOUT = VBAT VINi = 5V 7.5V < VBAT < 22V 200 320 500 A Open load diagnostic current Output off Overload Diagnostic IOUTi Over temperature diagnostic TJ Over current TJ = -40°C 3.0 175 4.3 °C A TJ = 25°C 2.5 3.7 A TJ = 150°C 2.2 3.5 A Figure 1. Typical Timing Diagram for Serial Diagnostic Fault: Short to Battery or over temp. o. k. < tv Fault: Open Load or Short to GND o. k. H DI SY CL Di1 Di2 Di3 L tvhold H L tvset 1/fCL H L tvDV DO H L Bit1 Bit2 Bit3 Bit4 Bit5 Bit6 Bit7 Bit8 Di1 Di2 Di3 tv Shift Register Data Frozen Reset of Shift Register 5/9 L9651 Figure 2. Serial Interface Error Coding BIT 1 BIT 2 OUTPUT 1 BIT 4 BIT 3 BIT 5 BIT 6 OUTPUT 3 OUTPUT 2 BIT 7 BIT 8 OUTPUT 4 H H o.k. L H open load/over temperature H L short to battery L L short to ground BIT n DI Figure 3. Output voltage TIMING for inductive load VINi VINiH VINiL t VOUTi VCL 0.8VCL sOFF VBAT 0.8VBAT sON 0.2VBAT tdon 6/9 tdoff t L9651 Figure 4. Application Circuit VBAT ● 5 Volt Regulator ● ● ● RESET ● VCC ● ● ● ● ● ● ● ● ● R R IN2 Controller ● R OUT1 IN1 ● OUT2 IN3 OUT3 IN4 OUT4 DO SY DO SY DI DI CL CL ● ● Further driver ICs with 4-WireDiagnostic ● ● 7/9 L9651 DIM. mm MIN. TYP. A a1 inch MAX. MIN. TYP. 3.6 0.1 0.3 a2 0.142 0.004 0.012 3.3 a3 0.130 0 0.1 0.000 0.004 b 0.4 0.53 0.016 0.021 c 0.23 0.32 0.009 0.013 D (1) 15.8 16 0.622 0.630 D1 (2) 9.4 9.8 0.370 0.386 E 13.9 14.5 0.547 e 1.27 e3 E1 (1) E3 0.570 0.450 11.1 E2 0.429 0.437 0.228 0.244 2.9 5.8 6.2 0.114 G 0 0.1 0.000 0.004 H 15.5 15.9 0.610 0.626 0.031 0.043 h L 1.1 0.8 1.1 0.043 N 8˚(typ.) S 8˚(max. ) T Weight: 1.9gr 0.050 11.43 10.9 OUTLINE AND MECHANICAL DATA MAX. 10 JEDEC MO-166 0.394 PowerSO-20 (1) “D and E1” do not include mold flash or protusions. - Mold flash or protusions shall not exceed 0.15mm (0.006”) - Critical dimensions: “E”, “G” and “a3”. (2) For subcontractors, the limit is the one quoted in jedec MO-166 N R N a2 b A e DETAIL A c a1 DETAIL B E e3 H DETAIL A lead D slug a3 DETAIL B 20 11 0.35 Gage Plane -C- S SEATING PLANE L G E2 E1 BOTTOM VIEW C (COPLANARITY) T E3 1 h x 45˚ 1 0 PSO20MEC D1 0056635 I 8/9 L9651 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. © 2013 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 www.st.com DocID7718 Rev 3 9/9