L6392D

Overview

The L6392D is a high-voltage half-bridge gate driver manufactured using BCD offline technology, designed for N-channel power MOSFETs and IGBTs. It features a floating high-side section rated up to 600 V with ±50 V/nsec dV/dt immunity. The device supports 3.3 V and 5 V TTL/CMOS logic inputs with hysteresis. Peak output currents are 290 mA source and 430 mA sink, with switching times of 75 ns rise and 35 ns fall under a 1 nF load. Operating voltage ranges from 12.5 V to 20 V, and the junction temperature range is -40°C to 125°C.

Feature Summary

• Integrates an operational amplifier for advanced current sensing in field-oriented motor control applications
• Includes adjustable deadtime and interlocking functions to prevent shoot-through conditions
• Features an integrated bootstrap diode to simplify circuit layout and reduce bill of materials

Applications

• Field oriented motor control systems
• Brushless DC (BLDC) motor drives
• Permanent Magnet Synchronous Motor (PMSM) applications

Procurement Notes

Verify the specific suffix 'D' indicates the SOIC-14 surface mount package configuration. Confirm that the operating supply voltage range aligns with the 12.5 V to 20 V specification during system design. Ensure thermal management meets the 800 mW dissipation limit within the specified ambient temperature constraints.

Selection Notes

Select this component when a single-chip solution for high-side and low-side driving is required. The integrated op-amp eliminates external components for current sensing. Verify compatibility with 3.3 V microcontrollers or DSPs due to the low-voltage logic input capability. Consider the 600 V rail rating for offline applications.

Part Context

The L6392D belongs to the L639x series of smart drivers from STMicroelectronics. This family utilizes BCD technology to combine high-voltage capabilities with precise logic control on a single die. The series is optimized for offline power conversion and motor drive applications requiring robust high-side performance.

Replacement Considerations

Public confirmed substitute part numbers: L6392DTR.