UCC27211DPRR

Gate Driver Overview

The UCC27211DPRR is a high-frequency half-bridge MOSFET gate driver manufactured by Texas Instruments. It features independent high-side and low-side drivers with a maximum bootstrap voltage of 120 V. The device delivers a peak output current of 4 A for both sourcing and sinking, enabling efficient driving of power MOSFETs. It operates within a supply voltage range of 8 V to 17 V and supports TTL or pseudo-CMOS logic inputs. The component is housed in an 8-pin WSON package and is designed for robust performance across a temperature range of -40°C to +140°C.

Gate Driver Feature Summary

• Provides independent high-side and low-side drive capabilities for N-channel MOSFETs
• Features a 120 V bootstrap rating for high-voltage switching applications
• Delivers 4 A peak source and sink currents for fast switching transitions
• Supports direct connection to gate drive transformers via input pins tolerant to negative voltages

Gate Driver Applications

• High-frequency synchronous buck converters
• Two-switch forward converters
• Active clamp forward converters
• Class-D audio amplifiers

Gate Driver Procurement Notes

Verify the specific suffix 'RR' against the manufacturer's official documentation to confirm the reel size and tape specifications. Ensure the ordering part number matches the exact package variant required for your PCB layout. Cross-reference the datasheet revision history to confirm the presence of all intended electrical characteristics before finalizing procurement.

Gate Driver Selection Notes

Select this component when designing circuits requiring high-speed switching with minimal propagation delay. The 4 A output current capability allows for the direct driving of large power MOSFETs without external buffer stages. Consider the 8 V UVLO threshold and the compatibility with standard TTL logic levels for interface design. The wide operating temperature range makes it suitable for industrial environments.

Gate Driver Part Context

This device belongs to the UCC2721x family of half-bridge drivers, which are enhanced versions of the popular UCC27201. The family is characterized by reduced on-resistance and increased peak current compared to predecessors. The UCC27211 specifically utilizes TTL-compatible inputs, distinguishing it from CMOS-input variants like the UCC27210.

Gate Driver Replacement Considerations

UCC27210D: Similar functionality but with CMOS inputs instead of TTL. UCC27211DR: Identical electrical specifications but packaged in SOIC-8 instead of WSON.