Rohm TO-247-4L, Руководство по эксплуатации

Страница: 14 / 42

11/38
TO-247-4L Half-Bridge Evaluation Board
User’s Guide
©
2019 ROHM Co., Ltd.
No. 61UG047E Rev.001
August.2019
5
．
CLK Select Function (JP201 Setting)
It is important to prevent simultaneous activation of the HS and LS Gates of the MOSFETs when using a half-bridge configuration. For
this evaluation board, selection between Single-CLK Mode that allows driving with a single external signal while preventing the HS
and LS simultaneous ON condition, or Dual/DP-CLK Mode that allows ON/OFF driving individually is possible. The selection can be
done by using the JP201 jumper.

When Single-CLK Mode is selected, only
“IN_CLK” signal is valid.

When Dual/DP-CLK Mode is selected,
“IN_H_CLK” signal for driving the HS side and “IN_L_CLK” signal for driving the
LS side is valid. Even though HS and LS simultaneous ON prevention circuit is included during this mode, there is no
dead time period.

Select DUAL/DP-CLK Mode when performing double-pulse test, drive either HS or LS.
Figure 7. CLK Select Function
HVdc
PGND
Vsw
DUT
DUT
IN_H_CLK
IN_CLK
ENABLE
Vcc
ICAP
SNB
SGND
PGND
PGND
PGND
IN_L_CLK
HS
LS