USER GUIDE
Skyworks Solutions, Inc. • Phone [949] 231-3000 • [email protected] • www.skyworksinc.com
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November 10, 2022
1
UG499: Si828x-AW-GDB Gate Driver Boards
1. Introduction
The Si828x Gate Driver Boards (GDB) are ideal for driving
Wolfspeed's XM3 1200 V Half Bridge Power Modules
or
other parallel combinations of discrete transistors. This two-
channel isolated gate driver reference design in a half-bridge
configuration features a differential digital interface, opti-
mized on-board isolated power supply, DESAT protection,
gate drive current boost, and user-configurable turn-on (RH)
and turn-off (RL) gate resistors. Status indicator LEDs and
test points make evaluation and prototyping easy.
1.1. Key Features
•
Two digital gate drivers for high-side/low-side opera-
tion
•
Up to +20 A, -30 A peak output current with integrated
boost circuit
•
Independent control of turn on/turn off timing through
gate resistor selection
•
Isolated power supplies
•
5 kVRMS safety rated isolation
•
125 kV/µs common mode transient immunity (CMTI)
•
Reverse polarity protection for 12 V input supply
•
Differential inputs for increased noise immunity
•
DESAT detection and soft-shutdown for short-circuit
protection
•
Gate supply ready indicator
•
Module temperature (NTC) output as frequency modu-
lated digital signal
1.2. Additional System Components
The Si828x GDB is highly versatile and can be combined with
Wolfspeed's CIL boards and CGD12HB00D transceiver board
to provide platforms to evaluate gate driver and SiC device
combinations. The Si828x GDB is also designed to operate in
Wolfspeed's 300kW Three-Phase Inverter platform, where
three Si828x-AW-GDB provide all gate drivers necessary to
drive the XM3 power modules.
Figure 1. Si828x Gate Driver Board (GDB)
1.3. Tested Components Include
•
Evaluation Tool for the XM3 Module Platform
•
CAB450M12XM3 Power Module
•
