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© 2018 ROHM Co., Ltd.
No. 60UG092E Rev.001
JULY.2018
User’s Guide
AC/DC Converter
Isolation Fly-back Converter PWM method Output 24W 12V
BM2P0161 Reference Board
BM2P0161-EVK-003
ROHM BM2P0161-EVK-003 is from wide input voltage (90Vac
〜
264Vac) to output 12V 2A max. Constant Voltage Reference board.
It used to
PWM method DC/DC
Converter IC
BM2P0161.
BM2P0161 is including 650V High voltage power MOSFET and starter. The starter realize low Stand-by Power. Output voltage control method is
used current mode regulation,
therefore it can used cycle by cycle current limit. Quick response in dynamic load changing is achieved.
Switching frequency is fixed 65 kHz. Light load situation has frequency decrease function for
higher efficiency. Switching frequency jitter function
enables lower EMI operation. Various functions are included for safety, Soft start, Frequency Burst Mode, VCC OVP, Output OLP and thermal shut
down.
Electronics Characteristics
Not guarantee the characteristics, is representative value. Unless otherwise noted: V
IN
= 230Vac, I
OUT
= 500mA, Ta: 25°C
Table 1. Evaluation Board Specification
Description
Min
Typ
Max
Units
Conditions
Input Voltage Range
90
-
264
Vac
Input Frequency Range
47
50/60
63
Hz
Output Voltage
10.8
12.0
13.2
V
Output Maximum Power
-
-
24
W
I
OUT
=2A
Output Current Range
0.0
1.5
2.0
A
(Note 1)
No Load Power Consumption
-
73
-
mW
I
OUT
= 0A
Efficiency
80.0
86.0
-
%
Output:24V 1.5A
Output Ripple Voltage
-
190
-
mV
BW=20MHz, (note 2)
(NOTE1) Please adjust operating time, within any parts surface temperature under 105°C
(NOTE2) Not include spike noise
