UCC27423DGN

Gate Driver Overview

The UCC27423DGN is a dual low-side MOSFET gate driver from Texas Instruments, housed in an MSOP-PowerPad-8 package. It delivers a peak output current of 4 A with an inverting configuration. The device operates on a supply voltage range of 4 V to 15 V and supports CMOS logic inputs. Typical switching times include a 20 ns rise time and a 15 ns fall time under a 1.8-nF load. It functions within a temperature range of -40°C to +125°C.

Gate Driver Feature Summary

• Features dedicated enable pins for individual driver control
• Utilizes a hybrid bipolar and MOSFET output stage for high current drive at Miller thresholds
• Designed to minimize shoot-through current during switching transitions

Gate Driver Applications

• Switch-mode power supplies
• DC/DC converters
• Motor controllers
• Class D switching amplifiers

Gate Driver Procurement Notes

Verify the specific suffix 'DGN' corresponds to the MSOP-PowerPad-8 thermally enhanced package when sourcing. Confirm that the component meets the required operating temperature range of -40°C to +125°C for your application environment. Ensure input logic levels are compatible with the specified CMOS standards independent of the supply voltage.

Gate Driver Selection Notes

Select this component for applications requiring high-speed switching with independent enable functionality. The dual-channel design allows for paralleling outputs to increase drive current if necessary. Consider the thermal performance benefits of the PowerPAD package for long-term reliability in high-current scenarios compared to standard SOIC or PDIP packages.

Gate Driver Part Context

This part belongs to the UCC2742x family of high-speed dual MOSFET drivers. The family includes variants with different logic configurations such as dual-inverting, dual-noninverting, and mixed options. The UCC27423 specifically provides dual-inverting outputs, distinguishing it from other members like the UCC27424 which offers non-inverting logic.

Gate Driver Replacement Considerations

UCC27423DRQ1

Gate Driver FAQ

How does the enable function operate?

The enable pins (ENBA and ENBB) are internally pulled up to Vdd for active-high logic. They can be left open for standard operation or controlled to manage driver activity.

What is the typical propagation delay?

The typical propagation delay is 25 ns with input falling and 35 ns with input rising.