L9952XP

Power Management - Specialized Overview

The L9952XP is a microcontroller-driven door actuator driver designed for automotive applications. It integrates six half-bridges and five high-side drivers to control up to five DC motors and five grounded resistive loads. The device features an integrated standard Serial Peripheral Interface (SPI) for operation mode control and diagnostic feedback. Key output configurations include one full bridge for 6A loads, two half-bridges for 3A loads, two half-bridges for 1.5A loads, one high-side driver for 6A loads, and four high-side drivers for 1.5A loads. It supports programmable soft-start functions and offers comprehensive protection against short circuits, overloads, and over-temperature conditions.

Power Management - Specialized Feature Summary

• Integrates multiple half-bridge and high-side driver outputs to support complex door actuator systems with various load types.
• Provides detailed diagnostic information via SPI interface, including open-load and overload detection for all outputs.
• Includes programmable soft-start functionality to manage inrush currents for high-power loads effectively.
• Features low standby current consumption and charge pump output for reverse polarity protection.

Power Management - Specialized Applications

• Automotive door lock actuators
• Automotive window lifters
• Seat adjustment mechanisms
• Sunroof or moonroof drives

Power Management - Specialized Procurement Notes

Verify the specific suffix of the part number, as variations such as L9950XP exist within the same family. Confirm the lifecycle status, as some variants are marked as Not Recommended for New Designs (NRND). Ensure compatibility with the target vehicle's voltage range and communication protocols before finalizing procurement decisions.

Power Management - Specialized Selection Notes

Select this component when designing automotive door modules requiring integrated motor and load driving capabilities. Consider the specific current ratings of the internal bridges relative to the intended mechanical loads. Evaluate the need for SPI diagnostics versus simpler control interfaces. Verify that the PowerSSO-36 package fits the thermal and spatial constraints of the application design.

Power Management - Specialized Part Context

The L9952XP belongs to STMicroelectronics' portfolio of power management ICs tailored for automotive body electronics. It is part of a broader family of door actuator drivers that consolidate multiple discrete components into a single system-in-package solution. This integration helps reduce board space and simplifies the design process for manufacturers of automotive access systems.

Power Management - Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official STMicroelectronics resources for qualified alternatives or cross-reference options based on specific pinout and electrical parameter requirements.