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| L9951 DOOR ACTUATOR DRIVER DATA BRIEF 1 FEATURES One half bridge for 7.4A load (ron = 150m) Two half bridges for 5A load (ron = 200m) Two highside drivers for 1.25A load (ron = 800 m) Programmable Softstart function to drive loads with higher inrush currents (i.e.current >7.4A, >5A, >1.25A) Very low current consumption in standby mode (IS < 3A, typ. Tj 85 C) All outputs short circuit protected Current monitor output for all highside drivers All outputs over temperature protected Open load diagnostic for all outputs Overload diagnostic for all outputs Programmable PWM control of all outputs Charge Pump output for reverse polarity protection APPLICATION Rear Door Actuator Driver with bridges for door lock and safe lock and two 5W or 10W-light bulbs. PowerSO36 Table 1. Order Codes Part Number L9951 Package PowerSO36 2 3 DESCRIPTION The L9951 is a microcontroller driven multifunctional rear door actuator driver for automotive applications. Up to two DC motors and two grounded resistive loads can be driven with three half bridges and two highside drivers. The integrated standard serial peripheral interface (SPI) controls all operation modes (forward, reverse, brake and high impedance). All diagnostic informations are available via SPI. BLOCK DIAGRAM VBAT 10k 100k VCC Reverse Polarity Protection VS Note: value of capacitor has to be choosen carefully to limit the VS voltage below absolute maximum ratings in case of an unexpected freewheeling condition (e.g. TSD, POR) CP MUX CM/PWM PWM EN DI OUT1 Lock OUT2 OUT3 Driver Interface & Diagnostic M M Safe Lock C DO CLK CSN SPI OUT4 OUT5 Exteriour Light Safety Light GND April 2004 This is preliminary information on a new product now in development. Details are subject to change without notice. REV. 2 1/4 L9951 mm TYP. inch TYP. DIM. A A2 A4 A5 a1 b c D D1 D2 E E1 E2 E3 E4 e e3 G H h L N s MIN. 3.25 0.8 MAX. 3.5 3.3 1 0.075 0.38 0.32 16 9.8 MIN. 0.128 0.031 MAX. 0.138 0.13 0.039 0.003 0.015 0.012 0.630 0.38 OUTLINE AND MECHANICAL DATA 0.2 0 0.22 0.23 15.8 9.4 1 13.9 10.9 5.8 2.9 0.65 11.05 0 15.5 0.8 0.075 0 15.9 0.61 1.1 1.1 0.031 10 (max) 8 (max) 14.5 11.1 2.9 6.2 3.2 0.547 0.429 0.228 0.114 0 0.008 0.009 0.622 0.37 0.008 0.039 0.57 0.437 0.114 0.244 1.259 0.026 0.435 0.003 0.625 0.043 0.043 PowerSO36 Note: "D and E1" do not include mold flash or protusions. - Mold flash or protusions shall not exceed 0.15mm (0.006") - Critical dimensions are "a3", "E" and "G". N N a2 A DETAIL A e3 H lead e A a1 E DETAIL A c DETAIL B D a3 36 19 slug BOTTOM VIEW E3 B E2 E1 DETAIL B 0.35 Gage Plane D1 1 1 8 -C- S h x 45 b 0.12 M L SEATING PLANE G C AB PSO36MEC (COPLANARITY) 0096119 B 2/4 L9951 Table 2. Revision History Date March 2004 April 2004 Revision 1 2 First Issue Modified the style sheet following Design Guide last rev. rules. Description of Changes 3/4 L9951 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners (c) 2004 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 www.st.com 4/4 |
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