MIC4480YM-TR

Overview

The MIC4480YM-TR is a low-side MOSFET gate driver manufactured by Microchip Technology. It features dual independent channels with inverting and non-inverting inputs, housed in an 8-SOIC package. The device operates on a supply voltage range of 4.5V to 32V. It delivers a peak output current of 2.5A for both sourcing and sinking. Typical propagation delays are characterized by rise and fall times of 20ns and 29ns respectively. The component supports logic levels with VIL of 0.8V and VIH of 2.4V. It functions within a junction temperature range of -40°C to 125°C.

Feature Summary

• Dual-channel configuration providing independent control for two low-side MOSFETs
• Integrated inverting and non-inverting input options for flexible signal interfacing
• High peak output current capability designed for rapid MOSFET switching
• Robust operating temperature range suitable for demanding industrial environments

Applications

• Low-side power switching in motor control circuits
• DC-DC converter output stage driving
• General purpose high-speed power management applications

Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging when ordering. Confirm the manufacturer is Microchip Technology, as previous Micrel branding may appear in legacy documentation. Ensure the 8-SOIC package dimension matches your PCB footprint requirements. Check for any recent Product Change Notifications regarding assembly sites or materials that might affect long-term availability or compliance status.

Selection Notes

Select this component when dual independent low-side drive is required with moderate current capabilities. The 2.5A peak output is sufficient for standard power MOSFETs but may be insufficient for very large gate charges. Consider the 32V maximum supply limit against your system rail voltage. The inclusion of both inverting and non-inverting outputs simplifies bridge driver designs without requiring external inverters.

Part Context

This part belongs to the MIC44xx series of gate drivers from Microchip Technology. It serves as a successor to earlier Micrel products in this category. The device is distinct from higher-current variants like the MIC4420 which offers 6A output. It complements other low-side drivers in the portfolio by offering dual channel functionality in a compact surface-mount package.

Replacement Considerations

Official substitutes include the MIC4428YM-TR for similar dual-channel performance with slightly different electrical characteristics. Verify pin compatibility before replacing with generic equivalents. Cross-reference datasheets for exact timing and current specifications to ensure circuit stability during transition.