Door actuator driver
L9954 L9954XP
Door actuator driver
Features
■ Three half bridges for 1.5A load (Ron=800mΩ) ■ One highside driver for 6A...
Description
L9954 L9954XP
Door actuator driver
Features
■ Three half bridges for 1.5A load (Ron=800mΩ) ■ One highside driver for 6A load (Ron=100mΩ) ■ Two highside drivers for 1.5A load (Ron=800mΩ) ■ Programmable softstart function to drive loads
with higher inrush currents (i.e. current >6A, >1.5A)
■ Very low current consumption in standby mode (IS < 6µA typ; Tj ≤ 85 °C)
■ All outputs short circuit protected
■ Current monitor output for highside OUT1, OUT4, OUT5 and OUT6
■ All outputs over temperature protected
■ Open load diagnostic for all outputs
■ Overload diagnostic for all outputs
■ PWM control of all outputs
■ Charge pump output for reverse polarity protection
PowerSO-36
PowerSSO-36
Applications
■ Door actuator driver with bridges for mirror axis control and highside driver for mirror defroster and two 10W-light bulbs.
Description
The L9954 and L9954XP are microcontroller driven, multifunctional door actuator drivers for automotive applications. Up to two DC motors and three grounded resistive loads can be driven with three 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 information is available via the SPI.
Table 1. Device summary Package
PowerSO-36 PowerSSO-36
September 2013
Tube L9954 L9954XP
Order codes
Tape and reel L9954TR
L9954XPTR
Doc ID 14279 Rev 4
1/37
www.st.com
1
Contents
Contents
L9954 / L9954XP
1 Block diagram and...
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