L6392DTR

Overview

The L6392DTR 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 supporting up to 600 V rails with ±50 V/nsec dV/dt immunity. The device provides 290 mA source and 430 mA sink output currents, with typical rise/fall times of 75 ns/35 ns under a 1 nF load. Logic inputs are compatible with 3.3 V and 5 V CMOS/TTL standards. An integrated operational amplifier supports advanced current sensing, while adjustable deadtime and interlocking functions enhance system reliability.

Feature Summary

• Integrated operational amplifier enables advanced current sensing for field-oriented motor control applications
• Adjustable deadtime and interlocking functions prevent shoot-through in half-bridge configurations
• High dV/dt immunity ensures stable operation in high-noise environments
• Built-in bootstrap diode simplifies circuit layout and reduces bill of materials

Applications

• Field oriented motor control systems
• Brushless DC (BLDC) motor drives
• Permanent Magnet Synchronous Motor (PMSM) inverters
• High voltage AC/DC conversion stages

Procurement Notes

Verify the specific suffix DTR corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the operating temperature range and logic voltage compatibility align with the target microcontroller or DSP interface specifications. Ensure the design accounts for the maximum supply voltage limits and thermal dissipation requirements associated with the SOIC-14 package.

Selection Notes

Select this component when a single-chip solution is needed for driving N-channel MOSFETs or IGBTs in high-voltage half-bridge topologies. The integrated op-amp makes it suitable for applications requiring precise current monitoring without external components. Consider the adjustable deadtime feature for optimizing switching efficiency and minimizing cross-conduction risks in motor drive circuits.

Part Context

The L6392DTR belongs to the L639x series of smart drivers from STMicroelectronics. This family utilizes BCD technology to integrate high-voltage power stages with low-voltage logic on a single die. The series includes variants like the L6393, which replaces the internal op-amp with an uncommitted comparator for different protection schemes, offering flexibility for various industrial power management needs.

Replacement Considerations

The L6392D is the tube-packaged equivalent of the L6392DTR. Verify if the application requires reel-based automation or manual insertion to determine the appropriate packaging variant. Other members of the L639x family may serve as functional alternatives depending on whether an internal op-amp or comparator is preferred for the specific control strategy.