L6386D

Overview

The L6386D is a high-voltage half-bridge gate driver manufactured by STMicroelectronics using BCD offline technology. It integrates independent high-side and low-side drivers capable of simultaneously driving power MOSFETs or IGBTs in asymmetrical configurations. The device supports a floating high-side rail up to 600 V with integrated bootstrap diode functionality. Key electrical parameters include peak output currents of 400 mA source and 650 mA sink, typical switching times of 50 ns rise and 30 ns fall, and CMOS/TTL compatible Schmitt trigger inputs with hysteresis.

Feature Summary

• Integrates high-side and low-side drivers with an internal bootstrap diode for compact implementation
• Features embedded comparator with diagnostic output for overcurrent protection signaling
• Provides undervoltage lockout on both supply voltages to ensure operational reliability
• Offers high dV/dt immunity across the full temperature range

Applications

• High voltage motor control systems
• Offline power supply topologies
• Asymmetrical half-bridge converter circuits

Procurement Notes

Verify the specific suffix against official documentation, as variations may indicate different packaging or environmental compliance levels. Confirm current availability status directly with authorized distributors, as component lifecycle stages can change without immediate public notice. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when a single IC solution is required for driving both high and low-side switches in a half-bridge topology. The integrated bootstrap diode reduces external component count compared to discrete solutions. Consider the 600 V rating and current capabilities to ensure compatibility with the intended power stage devices and operating voltage rails.

Part Context

This part belongs to the L6386E series of high-voltage gate drivers from STMicroelectronics. The series utilizes BCD technology to combine high-voltage processing with standard logic capabilities on a single chip. This integration allows for robust performance in demanding industrial and automotive environments requiring reliable switching of power semiconductors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.