4/16
User’s Guide
BM2P060MF-EVK-001
© 2021 ROHM Co., Ltd.
No. 64UG011E Rev.001
MAY.2021
Application Circuit
This evaluation board operates in flyback mode at a maximum frequency of around 65 kHz..
The output (24 V) voltage is monitored by a feedback circuit and fed back to the FB pin of BM2P060MF through a opto - coupler.
At startup, the voltage at the VCC pin rises as the voltage is supplied from the DRAIN pin to the VCC pin through the start circuit.
The demo board schematic is shown in Figure below and the list of parts is tabulated on page 13.
IC1
VH
GN
D
S
O
URCE
ST
O
P
FB
B
URS
T
OF
F
VC
C
NC
DRA
IN
UDZV24B
ZD1
R7
C18
P1
S1
LF2
C15
680p
C20
AC IN
AC IN
24V 1.67A
GND
220n
C1
100n
C10
680u
C11
10n
C12
220n
C2
C21
100n
C24
120u
C3
10n
C4
47p
C5
10u
C6
C7
100n
C8
1n
C9
D1
D2
RFN1LAM7S
D3
RF05VAM2S
D5
D6
DB1
1.6
F1
P1
S1
LF1
PC1
100
R1
330m
R10
0
R12
47
R13
9.1k
R16
180k
R17
22k
R18
1k
R19
100
R2
15k
R20
18k
R21
R3
1k
R5
100k
R6
P1
P2
S1
S2
T1
IC3
470
ZNR1
C17
2.2n
C19
10
R28
C14
R8
Q1
