L9380-TR

Overview

The L9380-TR is a triple high-side MOSFET driver manufactured by STMicroelectronics, designed for replacing electromechanical relays. It integrates three independent channels to control external N-channel power MOS transistors in a high-side switch configuration. The device operates within a supply voltage range of 4.5V to 27V and supports PWM frequencies up to 100kHz. It features a 20-pin SO package with thermal pad for efficient heat dissipation.

Feature Summary

• Integrates three independent high-side driver channels for simultaneous load control
• Designed specifically as a direct replacement for traditional electromechanical relays
• Supports pulse-width modulation (PWM) operation for dynamic load management
• Includes built-in protection mechanisms against overcurrent and thermal stress

Applications

• Automotive body electronics systems
• Industrial relay replacement circuits
• High-side switching applications for resistive or inductive loads

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected variant matches the required pinout and thermal characteristics for the target PCB layout.

Selection Notes

Select this component when designing compact systems requiring multiple high-side switches without the bulk of mechanical relays. Evaluate the maximum current rating of the external MOSFETs to ensure compatibility with the driver's output capabilities. Consider the operating temperature range to match environmental constraints.

Part Context

This part belongs to STMicroelectronics' L93xx series of automotive-grade gate drivers. The series focuses on providing robust solutions for high-current switching applications in demanding environments. The L9380 variant specifically addresses the need for multi-channel control in space-constrained designs.

Replacement Considerations

Direct substitutes include other triple high-side drivers from STMicroelectronics such as the L9386 series. Verify pin compatibility and electrical specifications before swapping components to ensure system integrity.