Door Actuator Driver 36-Pin PowerSSO T/R

The L9953LXP is a microcontroller driven multifunctional door actuator driver for automotive applications. Up to three DC motors and three grounded resistive loads can be driven with five half bridges and three 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.

Three half bridges for 0.75A loads (R_DSon=1600mO)

Two configurable high side driver for up to 1.5A load (R_DSon=500mO) or 0.35A load (R_on=1800mO)

One full bridge for 6A load (R_on=150mO)

One highside driver for 6A load (R_on=100mO)

Programmable soft start function to drive loads with higher inrush currents (i.e. current >6A, >1.5A)

Very low current consumption in standby mode (I_S < 6µA typ; T_j = 85 °C)

All outputs short circuit protected

Current monitor output for highside OUT1, OUT4, OUT5 and OUT8

All outputs over temperature protected

Open-load diagnostic for all outputs

Overload diagnostic for all outputs

Separated half bridges for door lock motor

PWM control of all outputs

Charge pump output for reverse polarity protection