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1 Features

? Universal: dual low-side, dual high-side or

halfbridge driver

? Junction temperature range –40 to +150°C

? Up to 4-A peak source and 6-A peak sink output

? Common-mode transient immunity (CMTI) greater

than 125 V/ns

? Up to 25-V VDD output drive supply

– 5-V, 8-V VDD UVLO options

? Switching parameters:

– 33-ns typical propagation delay

– 5-ns maximum pulse-width distortion

– 10-μs maximum VDD power-up delay

? UVLO protection for all power supplies

? Fast disable for power sequencing

2 Applications

? On-board battery chargers

? High-voltage DC-DC converters

? Automotive HVAC, body electronics

3 Description

The UCC21550 is an isolated dual channel gate

driver family with programmable dead time and wide

temperature range. It is designed with 4-A peaksource

and 6-A peak-sink current to drive power

MOSFET, SiC, GaN, and IGBT transistors.

The UCC21550 can be configured as two lowsidedrivers,

two high-side drivers, or a half-bridge

driver. The input side is isolated from the two

output drivers by a 5-kVRMS isolation barrier, with

a minimum of 125-V/ns common-mode transient

immunity (CMTI).

Protection features include: resistor programmable

dead time, disable feature to shut down both outputs

simultaneously, and integrated de-glitch filter that

rejects input transients shorter than 5 ns. All supplies

have UVLO protection.

With all these advanced features, the UCC21550

device enables high efficiency, high power density,

and robustness in a wide variety of power

applications.