STMicroelectronics L9953/L9953XP Door Actuator Driver Datasheet

The L9953 is a microcontroller-driven multifunctional door actuator driver for automotive applications. It features one full bridge, three half bridges and three high side drivers, which can drive up to three DC motors and three grounded resistive loads. The integrated standard serial peripheral interface (SPI) controls all operation modes (forward, reverse, brake and high impedance). All diagnostic information is available via SPI.


STMicroelectronics L9953/L9953XP Door Actuator Driver Datasheet - cover page
Brand
STMicroelectronics
Document type
Datasheet
Language
English
Pages
38
File format
PDF
File size
536 KB
Published
08 August, 2012
Updated
30 September, 2023
Model
L9953
MD5 checksum
4494498A073206F7685513BC6CCA379A

About this manual

The L9953 and L9953XP are microcontroller-driven multifunctional door actuator drivers designed for automotive applications. These devices can drive up to three DC motors and three grounded resistive loads using five half bridges and three highside drivers.

Key features include one full bridge, three half bridges, and a highside driver capable of handling 6A loads (with Rg=150mΩ), alongside outputs for mirror axis control, defroster, and lighting. The integrated Standard Serial Peripheral Interface (SPI) controls all operation modes including forward, reverse, brake, and high impedance states.

What's inside

  • Block diagram
  • Pin description
  • Absolute maximum ratings
  • Electrical characteristics
  • Application information
  • Diagnostic functions
  • SPI interface
  • Package thermal data

Frequently asked questions

What is the maximum current rating for a full bridge output?

The device supports one full bridge capable of driving a 6A load.

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