UCC27288D

Overview

The UCC27288D is a robust N-channel MOSFET half-bridge gate driver from Texas Instruments, designed for controlling two N-channel MOSFETs in half-bridge or synchronous buck topologies. It features a maximum switch node (HS) rating of 100V and supports supply voltages up to 16V. The device delivers a peak sink current of 3.5A and a peak source current of 2.5A, enabling efficient driving of large power MOSFETs with minimal switching losses during the Miller plateau transition. It operates within a junction temperature range of -40°C to +140°C.

Feature Summary

• Independent high-side and low-side inputs allow flexible control configurations, including overlapping outputs via overlapping input signals.
• High negative voltage tolerance on both input pins (-5V) and the HS pin (-14V) enhances system robustness in harsh environments.
• Low propagation delay and tight delay matching minimize dead-time requirements, thereby improving overall system efficiency.
• Integrated undervoltage lockout (UVLO) on both drive stages forces outputs low when VDD falls below specified thresholds.

Applications

• Control of N-channel MOSFETs in half-bridge power converter topologies
• Gate driving in synchronous buck DC-DC converter configurations
• Industrial motor drive systems requiring robust high-side/low-side switching
• Applications utilizing external bootstrap diodes for high-side gate biasing

Procurement Notes

Verify that the specific part number suffix matches the required package variant, as the UCC27288 series includes different packaging options such as SOIC-8 tube and VSON-10 reel configurations. Confirm that the selected variant aligns with the intended PCB layout and thermal management strategy. Ensure compatibility with the target controller logic levels and verify that the external bootstrap diode selection meets the application's reverse recovery and current requirements.

Selection Notes

Select the UCC27288D when designing circuits that require independent control of high-side and low-side N-channel MOSFETs with moderate drive strength. This component is suitable for applications where input independence allows for custom timing adjustments or output overlap. Consider this driver for systems operating within a 5.5V to 16V supply range that benefit from high negative voltage tolerance on the HS node to withstand transient spikes without damage.

Part Context

The UCC27288D belongs to the UCC2728x family of half-bridge gate drivers manufactured by Texas Instruments. This family focuses on providing robust performance for driving N-channel MOSFETs in various power conversion topologies. The D suffix indicates the SOIC-8 surface-mount package, which is designed to improve system robustness in demanding environments compared to other available package options within the same functional family.

Replacement Considerations

• UCC27282D
• UCC27284DRCR

FAQ

Does the UCC27288D include an integrated bootstrap diode?

No, the UCC27288D does not include an integrated bootstrap diode. Users must select and install an external bootstrap diode suitable for their specific application requirements.

What is the maximum negative voltage tolerance for the HS pin?

The HS pin can tolerate an absolute maximum negative voltage of -14V, which helps protect the device during high dv/dt transients in half-bridge configurations.