L6395DTR

Overview

The L6395DTR is a high-voltage gate driver manufactured by STMicroelectronics using BCD offline technology. It integrates high-side and low-side drivers for N-channel MOSFETs or IGBTs, supporting a floating voltage rail up to 600 V. The device features CMOS/TTL compatible logic inputs down to 3.3 V. Electrical specifications include a supply voltage range of 10 V to 20 V, an output current capability of 430 mA sink and 290 mA source, and switching times of 75 ns rise and 35 ns fall with a 1 nF load. It operates within a temperature range of -40 °C to +125 °C and is housed in an SOIC-8 surface-mount package.

Feature Summary

• High voltage rail tolerance up to 600 V for floating high-side applications
• Integrated bootstrap diode simplifies circuit layout and reduces bill of materials
• CMOS/TTL logic inputs compatible with 3.3 V microcontrollers and DSPs
• High dV/dt immunity of ±50 V/ns across the full temperature range

Applications

• Driving N-channel power MOSFETs in high-voltage circuits
• Driving IGBTs in industrial power conversion systems
• High-side and low-side gate driving in offline power supplies

Procurement Notes

Verify the specific suffix DTR indicates the tape and reel packaging format when ordering. Confirm the SOIC-8 package type matches the target PCB footprint. Ensure the component meets RoHS compliance requirements for the intended market. Check moisture sensitivity levels for proper storage and handling procedures during assembly.

Selection Notes

Select this component for designs requiring a single-chip solution for both high-side and low-side driving. The integrated bootstrap diode eliminates external components, reducing board space. The wide input voltage compatibility allows direct interfacing with various logic families without level shifting. Verify that the thermal performance supports the expected power dissipation in the application environment.

Part Context

The L6395 belongs to a family of high-voltage gate drivers designed for offline applications. It utilizes BCD technology to integrate high-voltage capabilities with standard logic interfaces on a single chip. This approach simplifies the design of isolated gate drive circuits for power electronics.

FAQ

What is the maximum voltage rating for the high-side floating rail?

The high-side section is designed to withstand a voltage rail up to 600 V.

Is the bootstrap diode included in the L6395DTR package?

Yes, the device includes an integrated bootstrap diode to simplify the external circuit layout.

What is the minimum logic input voltage supported?

The logic inputs are compatible with CMOS/TTL standards down to 3.3 V.