MIC4129YML-TR

Overview

The MIC4129YML-TR is a low-side MOSFET gate driver manufactured by Microchip Technology. It features an inverting input configuration and supports single-channel operation for N-channel and P-channel MOSFETs. The device operates within a supply voltage range of 4.5V to 20V, with logic thresholds defined at 0.8V (VIL) and 2.4V (VIH). It delivers a peak output current of 6A for both sourcing and sinking. Typical rise and fall times are 12ns and 13ns, respectively. The component is housed in an 8-MLF® (3x3) package with exposed pad and functions reliably across a junction temperature range of -40°C to 125°C.

Feature Summary

• Provides high-speed switching capabilities with low propagation delay characteristics suitable for efficient power management applications.
• Delivers robust peak drive current to ensure rapid charging and discharging of MOSFET gates, minimizing switching losses.
• Features an inverting logic interface that simplifies control signal integration within existing circuit architectures.

Applications

• Low-side switching control for power MOSFETs in DC-DC converters
• Motor drive circuits requiring fast turn-on and turn-off transitions
• Industrial power supply systems utilizing single-ended gate drive configurations

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm the manufacturer designation as Microchip Technology, noting prior Micrel Semiconductor origins. Ensure compatibility with 8-MLF footprint requirements during PCB layout. Check RoHS compliance status for environmental regulations. Validate supply voltage ranges against system specifications before procurement.

Selection Notes

Select this component for applications requiring a dedicated low-side driver with high peak current capability. The inverting input type must align with the control logic polarity of the driving microcontroller or FPGA. Consider the thermal performance of the 8-MLF package for heat dissipation needs. Verify that the operating voltage range covers the intended system rail voltages. Evaluate the switching speed requirements against the 12ns/13ns typical transition times.

Part Context

This part belongs to the MIC4129 series of single-channel MOSFET drivers. It is functionally related to other devices in the MIC4120/MIC4129 family but distinguished by its specific low-side configuration and inverting logic. The device represents a continuation of Micrel's legacy gate driver portfolio now managed by Microchip Technology.

Replacement Considerations

Direct substitutes may include other 6A low-side MOSFET drivers from Microchip or Micrel with compatible pinouts and electrical characteristics. Verify package compatibility with the 8-MLF form factor. Ensure equivalent peak current ratings and switching speeds are maintained for performance parity.

FAQ

Is the MIC4129YML-TR a high-side or low-side driver?

It is a low-side gate driver designed to switch MOSFETs connected between the load and ground.

What is the input logic configuration?

The device features an inverting input, meaning a high logic level on the input turns the output on.

Does it support both N-channel and P-channel MOSFETs?

Yes, the datasheet specifies it can drive both N-channel and P-channel MOSFETs.