L6498DTR

Overview

The L6498DTR is a high-voltage half-bridge gate driver manufactured using BCD6 OFF-LINE technology, designed for N-channel power MOSFETs and IGBTs. It features a floating high-side section capable of withstanding a DC voltage rail up to 500 V and 600 V transient withstand voltage. The device provides a typical source current of 2 A and a sink current of 2.5 A at 25 °C. Logic inputs are compatible with 3.3 V, 5 V TTL/CMOS standards. Supply voltage ranges from 10 V to 20 V. Switching times are typically 25 ns rise and fall with a 1 nF load, and propagation delay is 85 ns. Operating temperature spans -40 °C to +125 °C.

Feature Summary

• Integrated interlocking function prevents simultaneous driving of both outputs to ensure safe operation.
• Independent UVLO protection circuits on high-side and low-side sections prevent operation in inefficient or dangerous conditions.
• Built-in bootstrap diode simplifies application PCB layout and reduces bill of material.
• High dV/dt immunity of ±50 V/ns across the full temperature range ensures robust performance.

Applications

• Driving medium and high capacity power MOSFETs
• Driving IGBTs in half-bridge configurations
• Off-line power supply designs

Procurement Notes

Verify the specific suffix against official STMicroelectronics documentation to confirm package type and reel specifications. Ensure compatibility with required logic levels and thermal management needs. Confirm RoHS compliance status through the manufacturer's datasheet rather than distributor summaries. Validate that the component meets the intended operating temperature range and voltage requirements for the target application.

Selection Notes

Select this component when a single-chip solution for half-bridge applications is required with high voltage tolerance. Consider the integrated bootstrap diode and interlocking features for simplified design and reduced component count. Evaluate the 2.5 A sink capability for driving larger power switches. Ensure the control interface matches the available 3.3 V or 5 V logic signals.

Part Context

The L6498DTR belongs to the L6498 series of high-voltage gate drivers from STMicroelectronics. It utilizes BCD6 OFF-LINE technology to integrate high-voltage capabilities with standard logic interfaces. This series is engineered for compact layouts and flexible design integration in power conversion systems.

Replacement Considerations

Consult official STMicroelectronics substitution guides for verified alternatives. Generic cross-references may not match the specific BCD6 technology or transient withstand voltage characteristics.