L6498L

Overview

The L6498L 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 rail up to 500 V and 600 V transient voltage. The device provides independent high-side and low-side outputs, each sourcing 2 A and sinking 2.5 A. Logic inputs are compatible with 3.3 V and 5 V CMOS/TTL standards. Key electrical parameters include a propagation delay of 85 ns, rise/fall times of 25 ns with a 1 nF load, and dV/dt immunity of ±50 V/ns across the full temperature range.

Feature Summary

• Integrated bootstrap diode simplifies PCB layout and reduces bill of materials
• Interlocking function prevents simultaneous driving of both outputs
• Independent UVLO protection circuits on high-side and low-side sections ensure safe operation under low efficiency conditions

Applications

• Evaluation of half-bridge gate driver performance with TO-220 or TO-247 power switches
• Medium and high capacity power MOSFET driving
• IGBT gate driving in off-line applications

Procurement Notes

Verify the specific suffix against official STMicroelectronics documentation to confirm package type and tape/reel specifications. Ensure compatibility with required operating temperatures and input logic levels. Confirm RoHS compliance status through current datasheets. Cross-reference part numbers with authorized distributors to avoid counterfeit components. Validate that the selected variant matches the intended application voltage and current requirements.

Selection Notes

Select the L6498L when a compact half-bridge solution with integrated bootstrap functionality is required. The device is suitable for designs needing robust dV/dt immunity and interlocking protection. Consider its 500 V DC rail capability and 600 V transient withstand voltage for high-voltage off-line applications. Ensure the control unit supports 3.3 V or 5 V logic interfaces for direct connection.

Part Context

The L6498L belongs to the L6498 series of high-voltage gate drivers from STMicroelectronics. This series utilizes BCD6 OFF-LINE technology to provide integrated solutions for driving power switches. The EVAL6498L evaluation board is available to test the L6498L's features with standard power packages, facilitating design validation and component tuning.

Replacement Considerations

Publicly confirmed substitute part numbers for the L6498L are not available in the provided source material.