MIC4605-1YMT-TR

Overview

The MIC4605-1YMT-TR is an 85V half-bridge MOSFET gate driver manufactured by Microchip Technology. It operates within a supply voltage range of 5.25 V to 16 V and features dual TTL inputs with non-inverting logic. The device provides peak output currents of 1 A for both sourcing and sinking. Electrical characteristics include rise and fall times of 20 ns. It is qualified under AEC-Q100 standards and functions reliably across a temperature range of -40°C to +125°C TJ. The component is housed in a compact 10-TDFN (2.5x2.5 mm) surface-mount package.

Feature Summary

• Advanced adaptive dead time circuitry actively monitors outputs to minimize transition delays between high-side and low-side MOSFETs, maximizing power efficiency.
• Intelligent shoot-through protection prevents simultaneous conduction of both MOSFETs caused by erroneous inputs or noise.
• Dual TTL-compatible inputs allow direct interface with standard digital control logic.

Applications

• High-efficiency DC-DC converter designs requiring precise switching control
• Motor drive systems utilizing half-bridge topologies
• Industrial power supplies needing robust noise immunity

Procurement Notes

Verify the specific suffix 'T5' versus 'TR' as availability varies; some sources indicate the T5 variant may have limited regional distribution. Confirm RoHS compliance status directly with the manufacturer or authorized distributor before finalizing procurement plans due to potential lifecycle changes.

Selection Notes

Select this component when a compact 10-pin TDFN package is required for space-constrained designs. Ensure the application demands dual independent inputs rather than single PWM input configurations found in other MIC4605 variants. Verify that the 85V rating aligns with the target bus voltage requirements.

Part Context

This part belongs to the MIC4605 family of half-bridge drivers from Microchip Technology, formerly Micrel. The family includes variants like MIC4605-1YM and MIC4605-2YM, differing primarily in package type and input configuration. The MIC4605 series is designed for high-performance applications requiring fast switching speeds and integrated protection features.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip's official replacement guides or contact technical support for validated alternatives if this specific package or suffix is unavailable.

FAQ

What is the function of the adaptive dead time feature?

The adaptive dead time circuitry actively monitors the half-bridge outputs to minimize the time interval between high-side and low-side MOSFET transitions, thereby maximizing overall power efficiency.

How does the device prevent shoot-through?

It incorporates intelligent shoot-through protection circuitry that detects and prevents erroneous inputs or noise from turning both the high-side and low-side MOSFETs on simultaneously.