The document introduces the features of the L9953LXP door motor driver, including 3 half bridge drivers, 2 configurable high side drivers, 1 full bridge driver, 1 high side driver, programmable soft start function, low standby current, short circuit protection, current monitoring output, over temperature protection, open load diagnosis, overload diagnosis, separate half bridge drivers, PWM control, charge pump output, etc.
The L9953LXP is a multifunctional door actuator driver designed for automotive applications. It integrates up to three DC motors and three resistive loads, controlled via a standard Serial Peripheral Interface (SPI). The device includes five half bridges and three highside drivers to manage door locks, mirror axis control, and defroster functions.
Key features include programmable soft start for high inrush currents, very low current consumption in standby mode, and comprehensive protection mechanisms such as short circuit, over-temperature, open-load, and overload diagnostics. All diagnostic information is accessible via the SPI interface.
| Half bridge load current | 0.75A |
|---|---|
| High side driver load current | 1.5A |
| Full bridge load current | 6A |
| Highside driver load current | 6A |
| Package type | PowerSSO-36 |
It is a door actuator driver for automotive applications, controlling door locks, mirror axis control, and defroster functions.
The full bridge can drive a load of up to 6A.
Yes, an open-load diagnostic is available for all outputs.
Applying more than 7.5V to the CSN pin switches the device into a test mode.