DC Motor Driver 36-Pin PowerSO T/R

The L9951 and L9951XP are microcontroller driven, multifunctional rear door actuator drivers for automotive applications. Up to two DC motors and two grounded resistive loads can be driven with three half bridges and two hide side drivers.The integrated standard serial peripheral interface (SPI) controls all operation modes (forward, reverse, brake and high impedance). All diagnostic information is available via the SPI.

One half bridge for 7.4 A load (R_on = 150 m)

Two half bridges for 5 A load (R_on = 200 m)

Two highside drivers for 1.25 A load (R_on = 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 stand-by mode (I_S < 3µA, typ. T_j = 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