L9380-LF

Overview

The L9380-LF is a high-side gate driver IC designed for controlling three external N-channel power MOS transistors in a high-side switch configuration. It accepts non-inverting logic inputs to drive the gates directly. The device operates with a supply voltage range of 7V to 18.5V and supports input logic levels between 3V and 7V. Key electrical characteristics include a quiescent current of 2.5mA. It integrates protection features such as over-voltage and over-current protection. The component is housed in a 20-SO package.

Feature Summary

• Integrates three independent high-side drivers for direct control of N-channel MOSFETs
• Includes built-in over-voltage and over-current protection mechanisms
• Accepts non-inverting logic inputs for straightforward interface compatibility

Applications

• High-side switching configurations for power management
• Control circuits for external N-channel power MOS transistors
• Automotive or industrial systems requiring protected high-side drive

Procurement Notes

Verify the specific suffix (LF) indicates lead-free compliance if required by your assembly process. Confirm the package type matches your PCB footprint requirements, specifically the 20-SO variant. Ensure the operating voltage range aligns with your system's supply rails. Check for any specific handling precautions outlined in the manufacturer's datasheet regarding electrostatic discharge during installation.

Selection Notes

Select this component when a compact solution for driving multiple high-side N-channel MOSFETs is needed. It is suitable for applications requiring integrated protection against over-voltage and over-current conditions. Consider the 7V to 18.5V supply range and 3V-7V logic input compatibility when designing the control circuitry. Ensure the thermal performance of the 20-SO package meets the system's dissipation needs.

Part Context

The L9380-LF belongs to STMicroelectronics' portfolio of gate drivers and interface ICs. It is categorized under integrated circuits for power management and switching applications. This part is distinct from low-side drivers or isolated gate drivers, focusing specifically on high-side switching control for external power transistors in non-isolated environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical specifications before considering alternative components from other manufacturers.