UCC37325DGN

Gate Driver Overview

The UCC37325DGN is a dual high-speed low-side power MOSFET driver from Texas Instruments, housed in an 8-pin MSOP PowerPAD package. It provides independent inverting and non-inverting outputs with a peak drive current of 4 A. The device operates on a supply voltage range of 4 V to 15 V and features typical rise and fall times of 23 ns. It draws a supply current of 600 uA and functions within a temperature range of 0°C to +70°C.

Gate Driver Feature Summary

• Delivers 4 A peak current capability specifically optimized for the Miller plateau region during switching transitions.
• Utilizes a unique Bipolar and CMOS hybrid output stage to ensure efficient constant current sourcing and sinking at low supply voltages.
• Features TTL and CMOS compatible inputs that remain independent of the supply voltage level.

Gate Driver Applications

• Switch Mode Power Supplies
• DC/DC Converters
• Motor Controllers

Gate Driver Procurement Notes

Verify the specific suffix 'RG4' against the manufacturer's latest documentation to confirm RoHS compliance status and lead time requirements. Ensure the MSOP PowerPAD thermal pad connection is properly managed in the PCB layout to maintain the specified thermal resistance and long-term reliability under load conditions.

Gate Driver Selection Notes

Select this component when a dual-channel low-side driver with mixed logic polarity (one inverting, one non-inverting) is required. It is suitable for applications needing high peak current into capacitive loads without the complexity of bootstrap circuits associated with high-side drivers. Consider the thermal performance of the PowerPAD package for dense layouts.

Gate Driver Part Context

This part belongs to the UCC3732x family of dual 4 A peak high-speed low-side power MOSFET drivers. It shares core electrical characteristics with variants like the UCC37323 and UCC37324 but differs in output configuration. The DGN suffix denotes the thermally enhanced 8-lead MSOP PowerPAD package designed to lower thermal resistance compared to standard SOIC packages.

Gate Driver Replacement Considerations

UCC37323DGN offers dual inverting outputs. UCC37324DGN offers dual non-inverting outputs. UCC27325DGN is the automotive-grade equivalent. Verify pinout compatibility and thermal requirements before substitution.

Gate Driver FAQ

What is the difference between the UCC37325 and UCC37323?

The UCC37325 provides one inverting and one non-inverting output, whereas the UCC37323 provides two inverting outputs. Both share the same 4 A peak drive current and package options.

How does the PowerPAD package benefit this driver?

The MSOP PowerPAD package drastically lowers thermal resistance, improving long-term reliability by efficiently dissipating heat generated during high-current switching operations.