UCC27525DR

Gate Driver Overview

The UCC27525DR is a dual-channel, high-speed low-side gate driver from Texas Instruments designed for driving power MOSFETs and IGBTs. It delivers a peak output current of 5A source and 5A sink into capacitive loads with rail-to-rail drive capability. The device features an extremely small propagation delay of typically 13ns and matched internal propagation delays between channels, making it ideal for synchronous rectifiers. It operates on a single supply voltage ranging from 4.5V to 18V. The input logic is compatible with TTL and CMOS standards, featuring wide hysteresis for excellent noise immunity. The component is housed in an SOIC-8 package.

Gate Driver Feature Summary

• Provides independent enable functionality for each output channel to control driver operation.
• Features input and enable pin voltage levels that are not limited by the VDD bias supply voltage.
• Maintains outputs at a low level during UVLO conditions to ensure glitch-free operation during power-up and power-down.

Gate Driver Applications

• Synchronous rectifier applications requiring critical timing between dual-gate drives
• Driving parallel power switches using a single input signal
• General-purpose low-side switching for MOSFET and IGBT power stages

Gate Driver Procurement Notes

Verify the specific suffix 'DR' corresponds to the SOIC-8 tape-and-reel packaging configuration. Confirm the device revision matches the required RoHS compliance status. Ensure the operating temperature range aligns with the -40°C to +140°C specification. Validate that the input logic thresholds meet the system's TTL or CMOS requirements without external level shifting.

Gate Driver Selection Notes

Select this component when dual-channel low-side driving with matched propagation delays is required. It is suitable for applications needing up to 5A peak current drive capability. Consider this part for designs where input logic levels must remain independent of the high-side supply voltage. It is appropriate for systems requiring independent channel enable controls for precise timing management.

Gate Driver Part Context

The UCC27525 belongs to the UCC2752x family of dual high-speed low-side gate drivers. This series includes variants such as the UCC27523, UCC27524, and UCC27526, which offer different input logic configurations like dual inverting, dual non-inverting, or flexible inputs. The UCC27525 specifically provides one inverting and one non-inverting channel.

Gate Driver Replacement Considerations

The UCC27523, UCC27524, and UCC27526 are functionally similar members of the same family. Verify that the specific input logic configuration (inverting/non-inverting) of the substitute matches the circuit design requirements before replacement.