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TO-247N(-4L) Half-Bridge Evaluation Board
User’s Guide
© 2022 ROHM Co., Ltd.
No. 63UG0
60E
Rev.001
2022.2
Table 3 Definition of power supply pins
Power supply
pin
Signal
Details
T1
HVdc
High-voltage input pin
The input pin during buck or inverter operation, but the output pin during boost
operation.
T2
Vsw
Power source pin of H-side MOSFET and drain pin of L-side MOSFET
This pin is connected in the board and cannot be disconnected.
T3
PGND
Power GND pin
Connected to SGND on the input signal side.
Table 4 Definition of signal lines
Connector
Pin
No.
Signal
I/O
Details
CN1
01
IN_H_CLK
I
Signal to turn on/off the H-side MOSFET. Turns on when at “H” level.
When open, it is pulled down with a 2.2 kΩ resistor.
02
SGND
--
Input signal side GND. Completely separated from the DUT side GND.
CN101
01
IN_L_CLK
I
Signal to turn on/off the L-side MOSFET. Turns on when at “H” level.
When open, it is pulled down with a 2.2 kΩ resistor.
02
SGND
--
Input signal side GND.
CN201
01
Vcc
--
Power supply pin for driver IC and internal control. The gate drive power
supply is generated internally from this power supply.
02
SGND
--
Input signal side GND.
JP51
01
SOURCE_HS
--
PCB004P: SOURCE signal of H-side DUT.
PCB005P: DRIVER SOURCE signal of H-side DUT.
02
GND2_HS
--
GND2 signal of H-side driver IC.
03
VEE_HS
--
H-side negative bias power supply.
JP151
01
SOURCE_LS
--
PCB004P: SOURCE signal of L-side DUT.
PCB005P: DRIVER SOURCE signal of L-side DUT.
02
GND2_LS
--
GND2 signal of L-side driver IC.
03
VEE_LS
--
L-side negative bias power supply.