L9951 DOOR ACTUATOR DRIVER DATA BRIEF 1 ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 2 ■ FEATURES One half bridge for 7.4A load (ron = 150mΩ) Two half bridges for 5A load (ron = 200mΩ) Two highside drivers for 1.25A load (ron = 800 mΩ) 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 < 3µA, 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 Package L9951 PowerSO36 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 10k 100k VBAT VCC Reverse Polarity Protection 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 Driver Interface & Diagnostic DO SPI µC DI CSN OUT1 Lock EN CLK VS OUT2 M OUT3 M Safe Lock 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 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 mm TYP. 0.8 MAX. 3.5 3.3 1 MIN. 0.128 0.075 0.38 0.32 16 9.8 0 0.008 0.009 0.622 0.37 14.5 11.1 2.9 6.2 3.2 0.547 0.429 0.031 0.2 1 0.003 0.015 0.012 0.630 0.38 0.039 13.9 10.9 5.8 2.9 0.57 0.437 0.114 0.244 1.259 0.228 0.114 0.65 11.05 0.026 0.435 0.075 0 15.9 0.61 1.1 1.1 0.031 10˚ (max) 8˚ (max) 0.8 OUTLINE AND MECHANICAL DATA MAX. 0.138 0.13 0.039 0.008 0 0.22 0.23 15.8 9.4 0 15.5 inch TYP. 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 e A DETAIL A A c a1 DETAIL B E e3 H DETAIL A lead D slug a3 36 BOTTOM VIEW 19 E3 B E1 E2 D1 DETAIL B 0.35 Gage Plane 1 1 -C- 8 S L SEATING PLANE G h x 45 2/4 b 0.12 M AB PSO36MEC C (COPLANARITY) 0096119 B L9951 Table 2. Revision History Date Revision Description of Changes March 2004 1 First Issue April 2004 2 Modified the style sheet following Design Guide last rev. rules. 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 © 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