L99DZ81EPTR

Power Management - Specialized Overview

The L99DZ81EPTR is a microcontroller-driven multifunctional door actuator driver for automotive applications, manufactured by STMicroelectronics. It operates within a supply voltage range of 5 V to 28 V and features an operating current of 10 mA. The device supports a minimum operating temperature of -40°C and a maximum of +150°C. It is housed in a TQFP-64 surface-mount package and holds AEC-Q100 qualification. The component utilizes an SPI interface with a working frequency of 125 kHz and accepts input voltages between 4.5 V and 5.5 V.

Power Management - Specialized Feature Summary

• Integrates three half bridges and four high-side drivers to control up to two DC motors and four grounded resistive loads.
• Supports external MOS transistors in bridge configuration for expanded load driving capabilities.
• Provides comprehensive diagnostic information accessible via the integrated STM standard serial peripheral interface.
• Includes programmable softstart functionality to manage loads with higher inrush currents.

Power Management - Specialized Applications

• Automotive door lock actuators
• Automotive window lift systems
• Seat position adjustment mechanisms

Power Management - Specialized Procurement Notes

Verify that the specific ordering suffix matches the required tape and reel packaging configuration. Confirm that the component meets the necessary AEC-Q100 automotive reliability standards for your target application environment. Ensure compatibility with the host microcontroller's SPI protocol version and voltage levels before finalizing procurement decisions.

Power Management - Specialized Selection Notes

Select this component when designing automotive body electronics requiring integrated motor and load control. It is suitable for applications needing separate half bridges for door lock motors and configurable high-side drivers. Consider its low standby current consumption and extensive diagnostic features for system safety and efficiency requirements.

Power Management - Specialized Part Context

This part belongs to the L99DZ81EP series of door actuator drivers from STMicroelectronics. It is categorized under Motor / Motion / Ignition Controllers & Drivers within the PMIC segment. The device is designed specifically for robust performance in automotive environments, offering a compact solution for managing multiple electromechanical loads in vehicle body modules.

Power Management - Specialized Replacement Considerations

Check for availability of the L99DZ81EP variant if reel packaging is not required. Verify pin-to-pin compatibility with other members of the L99DZ family for potential design updates or supply chain adjustments.