L99DZ81EP Door actuator driver Data brief Features ■ One full bridge for 6 A load (RON = 150 mΩ) ■ One half bridge for 3 A load (RON = 300 mΩ) ■ One configurable highside driver for up to 1.5 A (RON = 500 mΩ) or 0.4 A (RON = 1600 mΩ) load ■ One configurable high-side driver for 0.8 A (RON = 800 mΩ) or 0.4 A (RON = 1600 mΩ) load ■ Two high-side drivers for 0.5 A load (RON = 1600 mΩ) ■ *$3*&)7 TQFP-64 Applications Programmable softstart function to drive loads with higher inrush currents as current limitation value ■ Very low VS current consumption in standby mode (IS < 6 µA typ. Tj ≤ 85°C) ■ Current monitor output for all high-side drivers ■ Central two-stage charge pump ■ Motor bridge driver with full Rdson down to 6 V ■ Device contains temperature warning and protection ■ Open-load detection for all outputs ■ Overcurrent protection for all outputs ■ Separated half bridges for door lock motor ■ Programmable PWM control of all outputs ■ STM standard serial peripheral interface (STSPI 3.0) ■ Prepared for additional fail-safe path for H-Bridge Table 1. ■ Door Actuator Driver with 3 bridges for Double Door Lock Control, 4 high-side drivers for bulb and LED control. ■ Motor bridge driver to control four external power transistors in H-Bridge configuration Description The L99DZ81EP is a microcontroller driven multifunctional door actuator driver for automotive applications. Up to two DC motors and four grounded resistive loads can be driven with three half bridges and four high-side drivers. Four external MOS transistors in bridge configuration can be driven. The integrated SPI controls all operating modes (forward, reverse, brake and high impedance). Also all diagnostic information is available via SPI read. Device summary Order codes Package TQFP-64 November 2011 Tray Tape and reel L99DZ81EP L99DZ81EPTR Doc ID 022498 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 1 Package information L99DZ81EP 1 Package information 1.1 ECOPACK® 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. 2/4 Doc ID 022498 Rev 1 L99DZ81EP 2 Revision history Revision history Table 2. Document revision history Date Revision 16-Nov-2011 1 Changes Initial release. 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