L9953 Datasheet, PDF (1/38 Pages) STMicroelectronics – Door actuator driver

L9953
L9953XP
Door actuator driver
Features
■ One full bridge for 6A load (R_on=150mΩ)
■ 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 stand-by
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
PowerSO-36
PowerSSO-36
Applications
■ Door actuator driver with bridges for door lock ,
mirror axis control, mirror fold and highside
driver for mirror defroster and two 10W-light
bulbs.
Description
The L9953 and L9953XP are 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.
Table 1. Device summary
Package
PowerSO-36
PowerSSO-36
May 2010
Tube
L9953
L9953XP
Order codes
Tape and reel
L9953TR
L9953XPTR
Doc ID 14278 Rev 3
1/38
www.st.com
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