UCC24624DT

Overview

The UCC24624DT is a high-frequency dual synchronous rectifier gate driver manufactured by Texas Instruments. It features two drivers with two outputs, delivering a peak output current of 4 A. The device operates within a supply voltage range of 4.25 V to 26 V and supports TTL logic inputs. It exhibits a maximum turn-off delay time of 23 ns and consumes 1.1 mA during operation. The component is housed in an SOIC-8 package and functions reliably across a temperature range of -40 °C to +125 °C.

Feature Summary

• Dual-channel architecture designed for high-frequency synchronous rectification applications
• Capable of driving power MOSFETs with a 4 A output current capability
• Optimized for fast switching speeds to minimize conduction losses
• Compatible with standard TTL logic input thresholds

Applications

• Boost LLC resonant converter efficiency optimization
• Design considerations for dual-channel synchronous rectification
• High-frequency AC/DC power supply secondary side control

Procurement Notes

Verify the specific suffix 'DT' corresponds to the SOIC-8 package configuration when sourcing. Confirm that the required operating temperature range aligns with the specified -40 °C to +125 °C limits. Ensure the design accommodates the 4.25 V minimum supply voltage requirement. Check for moisture sensitivity handling procedures as indicated in the datasheet specifications before assembly.

Selection Notes

Select this component for designs requiring independent control of two synchronous rectifiers in high-frequency topologies. The 4 A drive strength suits medium-power applications where low gate charge is prioritized over extreme current surge capabilities. Consider the SOIC-8 footprint constraints and thermal dissipation requirements relative to the PCB layout. Validate compatibility with the controller's TTL logic levels to ensure proper signal interfacing without additional level shifting.

Part Context

This device belongs to the UCC24624 series of synchronous rectifier controllers. It complements other TI gate drivers like the UCC27424D but is specifically optimized for secondary-side rectification rather than primary-side switching. The part integrates features tailored for resonant converters, distinguishing it from general-purpose low-side drivers found in broader power management portfolios.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical parameter compatibility if considering alternative manufacturers or different TI series parts for redesign purposes.

FAQ

What is the maximum turn-off delay time for the UCC24624DT?

The maximum turn-off delay time is 23 ns.

Does the UCC24624DT support TTL logic inputs?

Yes, the device features TTL logic type inputs for compatibility with standard control signals.