L99DZ80EP

Power Management - Specialized Overview

The L99DZ80EP is an AEC-Q100 qualified microcontroller-driven multifunctional door actuator driver 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. Key electrical parameters include one full bridge rated for a 6 A load with an on-resistance of 150 mΩ, two half bridges for 3 A loads (300 mΩ), and two half bridges for 0.5 A loads (1600 mΩ). High-side capabilities feature a 5 A driver (100 mΩ), configurable drivers for up to 1.5 A or 0.7 A, and two 0.5 A drivers. Standby current consumption is typically less than 6 µA at junction temperatures up to 85 °C.

Power Management - Specialized Feature Summary

• Integrates multiple half-bridge and high-side driver outputs to support complex door actuator configurations including window lifts, locks, and mirrors.
• Features programmable softstart functionality to manage inrush currents for loads requiring higher initial current limits.
• Includes comprehensive diagnostic capabilities such as open-load detection and overcurrent protection across all output channels.
• Supports electrochromic mirror control via an integrated SPI-driven module capable of negative discharge through a negative supply.

Power Management - Specialized Applications

• Automotive power window actuators
• Door lock and unlock mechanisms
• Electrochromic rearview mirror systems
• Power trunk or tailgate actuators

Power Management - Specialized Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number L99DZ80EP with official STMicroelectronics documentation. Confirm that the device holds AEC-Q100 qualification status required for automotive reliability. Ensure the specific ordering suffix matches the requested package type and check humidity sensitivity handling requirements during storage and assembly processes.

Power Management - Specialized Selection Notes

Select this component when designing door zone systems requiring independent control of multiple motors and resistive loads within a single IC. The integrated ST-SPI interface simplifies communication with the system microcontroller. Consider the specific current ratings of the available half-bridges and high-side drivers to match the electrical demands of the target actuators and mirror elements.

Power Management - Specialized Part Context

This device belongs to the L99DZ series of automotive door actuator drivers manufactured by STMicroelectronics. It is designed for body electronics applications where space efficiency and high integration are critical. The series supports various door functions, combining power stage drivers with diagnostic features and communication interfaces to reduce external component count.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Verify compatibility with existing design constraints before considering alternative devices from other manufacturers or different models within the same family.