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© 2019 ROHM Co., Ltd.
No. 61UG024E Rev.002
Jul. 2021
© 2017 ROHM Co., Ltd.
No. 60AP001E Rev.001
2017.4
User’s Guide
AC/DC Converter
Non-Isolation Buck Converter PWM method Output 10 W 14 V
BM2P141X Reference Board
BM2P141X-EVK-001
The BM2P141X-EVK-001 evaluation board outputs 14 V voltage from the input of 90 Vac to 264 Vac. The output current supplies up
to 0.715 A. The BM2P141X which is PWM method DC/DC converter IC built-in 650 V MOSFET is used.
The BM2P141X contributes to low power consumption by built-in a 650 V starting circuit. Built-in current detection resistor realizes
compact power supply design. Current mode control imposes current limitation on every cycle, providing superior performance in
bandwidth and transient response. The switchin
g frequency is 65 kHz in fixed mode. At light load, frequency is reduced and high
efficiency is realized. Built-in frequency hopping function contributes to low EMI. Low on-resistance 1
.5 Ω 650 V MOSFET built-in
contributes to low power consumption and easy design.
Figure 1. BM2P141X-EVK-001
Electronics Characteristics
Not guarantee the characteristics, is representative value.
Unless otherwise noted :V
IN
= 230 Vac, I
OUT
= 0.5 A, Ta:25 °C
(NOTE1) Please adjust operating time, within any parts surface temperature under 105 °C
(NOTE2) Not include spike noise
Parameter
Min
Typ
Max
Units
Conditions
Input Voltage Range
90
230
264
Vac
Input Frequency
47
50/60
63
Hz
Output Voltage
12.6
14.0
15.4
V
Maximum Output Power
-
-
10.0
W
I
OUT
= 0.715 A
Output Current Range
(NOTE1)
0.000
0.500
0.715
A
Stand-by Power
-
150
-
mW
I
OUT
= 0 A
Efficiency
80.0
83.7
-
%
Output Ripple Voltage
(NOTE2)
-
76
-
mVpp
Operating Temperature Range
-10
+25
+65
°C
