L9954 Datasheet, PDF (1/37 Pages) STMicroelectronics – Door actuator driver

L9954
L9954XP
Door actuator driver
Features
■ Three half bridges for 1.5A load (R_on=800mΩ)
■ One highside driver for 6A load (R_on=100mΩ)
■ Two highside drivers for 1.5A load (R_on=800mΩ)
■ Programmable softstart 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 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
May 2010
Tube
L9954
L9954XP
Order codes
Tape and reel
L9954TR
L9954XPTR
Doc ID 14279 Rev 3
1/37
www.st.com
1