UCC24624DR

Overview

The UCC24624DR is a high-frequency dual synchronous rectifier gate driver manufactured by Texas Instruments. It features two independent drivers in an SOIC-8 package, delivering a peak output current of 4 A. The device operates on a supply voltage range of 4.25 V to 26 V and supports a maximum output voltage of 36 V. It functions within a temperature range of -40°C to +125°C, with a typical quiescent current of 1.1 mA. The component exhibits a maximum turn-off delay time of 23 ns, designed for efficient secondary-side control in power conversion topologies.

Feature Summary

• Dual-channel architecture providing independent drive signals for synchronous rectification applications
• High-speed switching capability optimized for high-frequency operation
• Robust operational range supporting wide input voltage variations

Applications

• Secondary side synchronous rectification in flyback converters
• Isolated DC-DC converter designs requiring precise timing control
• High-efficiency power supply modules utilizing MOSFET-based rectification

Procurement Notes

Verify the specific ordering suffix to ensure the correct packaging format matches your assembly requirements. Confirm that the SOIC-8 footprint aligns with your PCB layout constraints. Check moisture sensitivity levels and recommended reflow profiles during manufacturing. Ensure the supply voltage provided to the driver remains within the specified 4.25 V to 26 V limits to prevent device damage or malfunction.

Selection Notes

Select this component when designing systems requiring dual isolated gate drives for synchronous rectifiers. Consider the 4 A peak current capability for driving medium-power MOSFETs efficiently. Evaluate the thermal performance within the -40°C to +125°C operating range for your specific enclosure conditions. Compare the 23 ns turn-off delay against system timing requirements to ensure adequate dead-time management.

Part Context

This part belongs to the UCC24624 series of synchronous rectifier controllers from Texas Instruments. It is categorized under PMIC and MOSFET Gate Drivers. The device complements other TI solutions like the UCC24610, though it offers dual channels compared to single-channel alternatives. It serves as a critical interface between control logic and power switches in modern isolated power architectures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.