LTC1155IS8#TRPBF

Overview

The LTC1155IS8#TRPBF is a high-speed dual N-channel MOSFET gate driver manufactured by Analog Devices Inc. It operates within a supply voltage range of 4.5V to 20V and delivers peak output currents of 1.5A source and 3A sink. The device features independent inputs, propagation delays as low as 60ns, and a fixed 200ns dead-time control to prevent shoot-through in half-bridge configurations. Packaged in an 8-pin SOIC, it supports switching frequencies up to 500kHz.

Feature Summary

• Dual independent channel architecture for precise half-bridge control
• Integrated fixed dead-time mechanism to ensure safe switching transitions
• High peak drive capability supporting rapid MOSFET turn-on and turn-off

Applications

• Half-bridge power converter topologies
• Motor driver circuits requiring isolated or non-isolated gate control
• DC-DC converter stages utilizing synchronous rectification

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging with lead-free compliance. Confirm the IS8 designation corresponds to the industrial temperature range and SOIC-8 package variant. Ensure compatibility with existing PCB footprints and verify current availability status through authorized distributors due to potential lifecycle constraints.

Selection Notes

Select this component when dual independent high-current driving is required for N-channel MOSFETs in half-bridge applications. The fixed dead-time feature simplifies design compared to variable delay options. Ensure input logic levels are compatible with the 4.5V minimum supply voltage. Consider thermal performance in the SOIC-8 package under continuous high-frequency operation conditions.

Part Context

This part belongs to the LTC1155 series of high-speed MOSFET drivers. It is designed specifically for applications requiring robust gate drive signals with built-in protection against simultaneous conduction. The industry-standard SOIC-8 package facilitates easy integration into compact power management designs.

Replacement Considerations

Consult official Analog Devices documentation for verified cross-reference part numbers. Direct replacements must match the dual-channel configuration, N-channel MOSFET drive capability, and SOIC-8 package dimensions.