1 FEATURES

■ One full bridge for 6A load (ron = 150mΩ )

■ Two half bridges for 3A load (ron = 300mΩ )

■ Two half bridges for 1.5A load (ron = 800mΩ )

■ One highside driver for 6A load (ron = 100mΩ )

■ Four highside drivers for 1.5A load (ron = 800 mΩ )

■ Programmable Softstart function to drive loads

with higher inrush currents (i.e. current

>6A,>3A,>1.5A)

■ Very low current consumption in standby mode

IS < 6µA, typ. Tj ≤ 85 °C)

■ All outputs short circuit protected

■ Current monitor output for 300mΩ ,150mΩ and

100m highside drivers

■ All outputs over temperature protected

■ Open load diagnostic for all outputs

■ Overload diagnostic for all outputs

■ Seperated half bridges for door lock motor

■ PWM control of all outputs

■ Charge Pump output for reverse polarity

protection

2 APPLICATIONS

Door Actuator Driver with bridges for door lock and

safe lock, mirror axis control, mirror fold and highside

driver for mirror defroster and four 5W-light bulbs.

3 DESCRIPTION

The L9950 is a microcontroller driven multifunctional door actuator driver for automotive applications.Up to five DC motors and five grounded

resistive loads can be driven with six half bridges

and five 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