MIC44F18YML-TR

Overview

The MIC44F18YML-TR is a high-speed, low-side MOSFET gate driver manufactured by Microchip Technology. It features a non-inverting logic configuration and delivers peak output currents of 6A for both sourcing and sinking to drive capacitive loads efficiently. The device operates within a supply voltage range of 4.5V to 13.2V and supports input logic levels with typical thresholds of 1.607V (VIL) and 1.615V (VIH). It exhibits typical rise and fall times of 10ns, ensuring rapid switching performance. The component is housed in an 8-MLF® (2x2 mm) surface-mount package with a bare pad for thermal dissipation.

Feature Summary

• Delivers 6A peak source and sink current capability for driving capacitive loads
• Features fast switching characteristics with typical 10ns rise and fall times
• Includes an enable input function for power management control
• Operates with low-voltage CMOS/TTL compatible logic inputs

Applications

• High-speed MOSFET gate driving in power conversion circuits
• DC-DC converter synchronous rectification control
• Motor driver interface stages requiring fast switching
• Industrial power supply designs utilizing low-side switching

Procurement Notes

Verify the specific suffix '-TR' indicates tape-and-reel packaging when ordering. Confirm the manufacturer designation as Microchip Technology, noting the historical Micrel acquisition context if reviewing legacy documentation. Ensure the 8-MLF package footprint matches the PCB design requirements. Check RoHS compliance status against current environmental regulations. Validate the operating temperature range specifications (-40°C to 125°C TJ) against application thermal constraints.

Selection Notes

Select this component for applications requiring high peak current drive with minimal propagation delay. The non-inverting configuration simplifies control logic integration compared to inverting alternatives. Consider the 8-MLF package size for space-constrained designs. Evaluate the 4.5V to 13.2V supply range compatibility with system power rails. Assess thermal management needs due to the bare pad requirement on the MLF package.

Part Context

This part belongs to the MIC44F18/19/20 series of high-speed MOSFET drivers from Microchip Technology. The MIC44F18 variant specifically provides non-inverting logic, distinguishing it from the inverting MIC44F19. These devices are designed to replace older discrete driver solutions, offering integrated protection and higher speed performance in a compact surface-mount form factor suitable for modern power electronics.

Replacement Considerations

Public confirmed substitute part numbers include MIC44F19YML-TR (inverting logic) and MIC44F20YML-TR (dual channel). Verify pinout compatibility and logic inversion differences before substitution. Cross-reference datasheets for exact electrical parameter matching.