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EVM User's Guide: UCC21551CQEVM-079
UCC21551CQEVM-079 Evaluation Module
Description
The UCC21551CQEVM-079 is a two copper layer
PCB containing multiple test points and jumpers
to fully evaluate the functionality of the UCC21551
gate driver. The EVM features PWM input control,
onboard adjustable power supply, sockets for discrete
FETs, external active clamp for low side protection,
bootstrapped high side power supply, negative gate
voltage capability, configurable deadtime switches,
EN/DIS jumpers, and socket for Wolfspeed XM3 SiC-
based half bridge power modules. The layout has
been optimized to minimize gate loop area for each
channel and placement of bypass capacitors allow for
SLUUCT9 – SEPTEMBER 2023
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clean and sharp signal reading with minimal noise
interference.
Features
•
Variety of test points to help evaluate all of the gate
driver functions
•
Onboard isolated adjustable bias supply
configured for 20 V
•
Selectable dead time modes: overlap, interlock,
programmable
•
Low side external active clamping circuit
•
16 V/-3V Zener negative voltage pulldown circuit
for SiC FETs
•
Socket for Wolfspeed XM3 module
PCB Top Side
Copyright © 2023 Texas Instruments Incorporated
UCC21551CQEVM-079 Evaluation Module
Description
1
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