Skip to main content
Log in
Texas Instruments UCC27221PWPG4 — Power Management (PMIC / Gate Driver)

UCC27221PWPG4 Half-Bridge MOSFET Driver, 4A Peak, Obsolete

MPNUCC27221PWPG4
Obsolete

Texas Instruments UCC27221PWPG4 half-bridge N-channel MOSFET driver, 2 drivers, 4A peak source/sink, 3.7V–20V supply, 17ns rise/fall, inverting input, synchronous channel, 14-TSSOP exposed pad, tube.

Texas Instruments UCC27221PWPG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

UCC27221PWPG4 specifications
ParameterValue
Gate typeN-Channel MOSFET
Input typeInverting
Channel typeSynchronous
MountingSurface Mount
Supply voltage3.7V ~ 20V
Logic voltage - VIL, VIH0.7V, 2.6V
Current - peak output (Source, sink)4A, 4A
Operating temperature-55°C~115°C(TJ)
PackageTube
Case14-TSSOP (0.173\", 4.40mm Width) Exposed Pad
Number of drivers2
Driven configurationHalf-Bridge
Rise (Fall time)17ns, 17ns

Product details

Half-bridge gate driver for synchronous N-channel stages

It delivers 4A peak source and sink current, with a typical rise and fall time of 17 ns, making it suited for high-frequency switching stages in isolated DC-DC converters, synchronous buck regulators, and full-bridge topologies.

The driver operates from a 3.7V to 20V supply rail, covering bias voltages from secondary-side regulated rails up to a 20V bootstrap supply. Logic input thresholds are set at 0.7V for VIL and 2.6V for VIH, compatible with 3.3V and 5V PWM controllers. The inverting input polarity means a logic high on the input turns the corresponding output low — confirm the controller's output polarity in the BOM review.

Obsolete — sourcing via independent channel

Expect to qualify date-code and condition on any available stock.

Frequently asked questions

Where can I find the datasheet for UCC27221PWPG4?

Engineers need the official datasheet to verify electrical characteristics and pinout for design-in.

What is a direct replacement for UCC27221PWPG4?

Due to obsolescence, buyers and maintenance techs need a drop-in alternative to avoid redesign.

Is UCC27221PWPG4 obsolete?

Knowing lifecycle status helps sourcing decide whether to secure remaining stock or plan for substitution.

Where can I buy UCC27221PWPG4?

Distributors and brokers check availability and price for transaction processing.

What is the pinout and operating voltage of UCC27221PWPG4?

Design engineers validate fit with existing PCB layout and power supply rails.

Are there any cross-reference parts for UCC27221PWPG4 from other brands?

Brokers and sourcing buyers need cross references to find second-source or EOL alternatives.