User’s Guide
AC/DC Converter
Isolation Fly-back type PWM method Output 30W 24V Output
BM2P016T Reference Board
BM2P016T-EVK-001
The BM2P016T-EVK-001 evaluation board outputs 24V voltage from the input of 90Vac to 264Vac. The output
current supplies rated 1A and up to 1.25A.
BM2P016T which is PWM method DC/DC converter IC built-in 650V
MOSFET is used.
The BM2P16T 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 switching 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 1.4 Ω 650 V
MOSFET built-in contributes to low power consumption and easy design.
The flywheel diode is a fast recovery diode of 6A/200 V RFN6BM2D, contributing to low power consumption.
The conduction / radiation emission test is based on CISPR 22 Class B with best EMI design.
Electronics Characteristics
Not guarantee the characteristics, is representative value.
Unless otherwise noted :V
IN
= 230Vac, I
OUT
= 1A, Ta:25℃
Parameter
Input Voltage Range
Input Frequency
Output Voltage
Maximum Output Power
Output Current Range
(NOTE1)
Min
85
47
22.8
Typ
230
50/60
24.0
24
Max
264
63
25.2
Units
Vac
Hz
V
W
Conditions
(NOTE1)
30
W
A
mW
%
mVpp
I
OUT
= 1.25A
Stand-by Power
Efficiency
Output Ripple Voltage
(NOTE2)
0
1.00
230
89.5
163
1.25
I
OUT
= 0A
Operating Temperature
Range
Input Voltage Range
-10
25
65
℃
(NOTE1) Please adjust operating time, within any parts surface temperature under 105℃
(NOTE2) Not include spike noise
© 2017 ROHM Co., Ltd.
No. 60UG047E Rev.001
2017.10
1/10
BM2P016T-EVK-001
User’s Guide
Operation Procedure
1. Operation Equipment
(1) AC Power supply 85Vac〜264Vac, over 100W
(2) Electronic Load capacity 1.25A
(3) Multi meter
2. Connect method
(1) AC power supply presetting range 85~264Vac, Output switch is off.
(2) Load setting under 1.25A. Load switch is off.
(3) AC power supply N terminal connect to the board AC (N) of CN1, and L terminal connect to AC(L).
(4) Load + terminal connect to VOUT1, GND terminal connect to GND1 terminal
(5) AC power meter connect between AC power supply and board.
(6) Output test equipment connects to output terminal
(7) AC power supply switch ON.
(8) Check that output voltage is 24V.
(9) Electronic load switch ON
(10) Check output voltage drop by load connect wire resistance
FG
−
V
+
Electronic
Load
FG
AC
Power
Supply
Power
Meter
Figure 1. Connection Circuit
DC Multi Meter
CN1 : from the left ①:“Frame GND”, ②:N.C, ③:AC (N), ④:AC (L)
Frame Ground (FG)
This evaluation board is provided with a frame ground terminal. The leftmost terminal of CN1 is the frame
ground. In addition, the screw hole on the left side of the board is also a frame ground and it is possible to
connect to the metal case.
Derating
Maximum Output Power Po of this reference board is 30W.
The derating curve is shown on the right.
if ambient temperature is over 50℃, please adjust load continuous time by
over 105℃ of any parts surface temperature.
Po[W]
30W
24W
Figure 2. Temperature Derating curve
© 2017 ROHM Co., Ltd.
-10℃
25℃
50℃ 65℃
Ta[℃]
2/10
No. 60UG047E Rev.001
2017.10
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