1/8
© 2018 ROHM Co., Ltd. No. 60UG082E Rev.001
2018.3
User’s Guide
AC/DC Converter
Non-Isolation Buck Converter PWM method Output 10W 16.5V
BM2P161W Reference Board
BM2P161W-EVK-001
The BM2P161W-EVK-001 evaluation board outputs 16.5V voltage from the input of 90Vac to 264Vac. The output
current supplies up to 0.6A. BM2P161W which is PWM method DC/DC converter IC built-in 650V MOSFET is used.
The BM2P0161 contributes to low power consumption by built-in a 650 V starting circuit. Built-in current detection
resistor and feed-back circuit realize 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 1.9 Ω 650 V
MOSFET built-in contributes to low power consumption and easy design.
The flywheel diode is a fast recovery diode of 3A/600 V RFN3BM6S, contributing to low power consumption.
The conducted 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
= 500mA, Ta:25℃
Parameter Min Typ Max Units Conditions
Input Voltage Range 90 230 264 Vac
Input Frequency 47 50/60 63 Hz
Output Voltage 15.0 16.5 18.0 V
Maximum Output Power - 8.25 9.90 W I
OUT
= 600mA
Output Current Range
(NOTE1)
0 500 600 mA
Stand-by Power - 45 - mW I
OUT
= 0A
Efficiency - 84.7 - %
Output Ripple Voltage
(NOTE2)
- 69 - mVpp
Operating Temperature
Range -10 25 65 ℃
(NOTE1) Please adjust operating time, within any parts surface temperature under 105℃
(NOTE2) Not include spike noise
2/8
© 2018 ROHM Co., Ltd. No. 60UG082E Rev.001
2018.3
User’s Guide
BM2P161W-EVK-001
Operation Procedure
1. Operation Equipment
(1) AC Power supply 90Vac〜264Vac, over 10W
(2) Electronic Load capacity 0.6A
(3) Multi meter
2. Connect method
(1) AC power supply presetting range 90~264Vac, Output switch is off.
(2) Load setting under 0.6A. 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 VOUT, GND terminal connect to GND 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 16.5V.
(9) Electronic load switch ON
(10) Check output voltage drop by load connect wire resistance
Figure 1. Connection Circuit
Deleting
Maximum Output Power Po of this reference board is 9.9W. 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.
Figure 2. Temperature Deleting curve
Power
Meter
AC Power
Supply
+
−
DC Multi Meter
V
Electronic
Load
CN1 : from the up
①:AC (N), ②:AC (L)
3/8
© 2018 ROHM Co., Ltd. No. 60UG082E Rev.001
2018.3
User’s Guide
BM2P161W-EVK-001
Schematics
V
IN
= 90～264Vac, V
OUT
= 16.5V
Figure 3. BM2P161W-EVK-001 Schematics
Bill of Materials
Table 1. BoM of BM2P161W-EVK-001
Part
Reference
Qty. Type Value Description Part Number Manufacture Configuration
mm (inch)
C1 1 Film 0.1μF X2 890324023023CS Wurth -
C3 1 Electrolytic 33uF 450V 450BXW33MEFR12.5X25 Rubycon -
C5 1 Ceramic 2.2µF 35V, X7R, ±10% UMK316B7225KL-T Taiyo Yuden 3216 (1206)
C7 1 Electrolytic 470uF 35V, Low-Z UPW1V471MPD Nichicon
C8 1 Ceramic 0.1μF 100V, X7R, ±20% HMK107B7104MA-T Taiyo Yuden 1608 (0603)
CN1 1 Connector - 2pin B2P-NV JST -
D1 1 FRD 3A 600V RFN3BM6S ROHM TO-252
D2 1 Diode 0.2A 600V RRE02VSM6S ROHM TUMD2SM
DB1 1 Bridge 1A 800V D1UBA80 Shindengen SOPA-4
F1 1 Fuse 1.0A 300Vac 36911000000 LitteleFuse -
IC1 1 AC/DC Converter - - BM2P161W-Z ROHM DIP7
L1 1 Coil 150μH 2.4A XF1501Y-151 Alpha Trans Φ13.5
LF1 1 Line Filter 13mH 1A XF1482Y Alpha Trans -
R1 1 Resistor 10kΩ 0.25W, ±5% MCR18EZPJ103 ROHM 3216 (1206)
ZNR1 1 Varistor - 470V, 400A V470ZA05P LitteleFuse -
4/8
© 2018 ROHM Co., Ltd. No. 60UG082E Rev.001
2018.3
User’s Guide
BM2P161W-EVK-001
PCB
Size : 30 mm x 91 mm
Figure 4. Top Silkscreen (Top view)
Figure 5. Bottom Layout (Top view)
5/8
© 2018 ROHM Co., Ltd. No. 60UG082E Rev.001
2018.3
User’s Guide
BM2P161W-EVK-001
Performance Data
Figure 6. Load Regulation (I
OUT
vs. V
OUT
) Figure 7. LOAD Regulation (I
OUT
vs. Efficiency)
Figure 8. Load Regulation (I
OUT
vs. P
LOSS
) Figure 9. LOAD Regulation (I
OUT
vs. P
LOSS
)
Table 2. Load Regulation (V
IN
=100Vac) Table 3. Load Regulation (V
IN
=230Vac)
I
OUT
V
OUT
Efficiency
125 mA
16.725 V
85.05 %
250 mA
16.690 V
85.71 %
375 mA
16.670 V
85.99 %
500 mA
16.640 V
86.02 %
15.0
15.5
16.0
16.5
17.0
17.5
18.0
0 500 1000
Output Voltage [V]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
0
10
20
30
40
50
60
70
80
90
100
0 100 200 300 400 500 600
Efficiency [%]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0 100 200 300 400 500 600
Power Loss [W]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
1 10 100
Power Loss [W]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
I
OUT
V
OUT
Efficiency
125 mA
16.703 V
82.66 %
250 mA
16.653 V
84.06 %
375 mA
16.637 V
84.45 %
500 mA
16.617 V
84.73 %
6/8
© 2018 ROHM Co., Ltd. No. 60UG082E Rev.001
2018.3
User’s Guide
BM2P161W-EVK-001
Figure 10. LINE Regulation (I
OUT
vs. V
OUT
) Figure 11. LINE Regulation (I
OUT
vs. Efficiency)
Figure 12. Switching Frequency (I
OUT
vs. F
SW
) Figure 13. Coil Peak Current (I
OUT
vs. I
peak
)
15.0
15.5
16.0
16.5
17.0
17.5
18.0
80 100 120 140 160 180 200 220 240 260 280
Output Voltage [V]
Input Voltage [Vac]
I
OUT
= 10mA
IOUT=100mA
IOUT=250mA
IOUT=500mA
0
10
20
30
40
50
60
70
80
90
100
80 100 120 140 160 180 200 220 240 260 280
Efficiency [%]
Input Voltage [Vac]
I
OUT
= 10mA
IOUT=100mA
IOUT=250mA
IOUT=500mA
0
10
20
30
40
50
60
70
0 100 200 300 400 500 600
Switching Frequency [kHz]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0 100 200 300 400 500
Coil Peak Current [A]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
7/8
© 2018 ROHM Co., Ltd. No. 60UG082E Rev.001
2018.3
User’s Guide
BM2P161W-EVK-001
Figure 14. VOUT Ripple Voltage (I
OUT
vs. V
ripple
)
V
IN
=100Vac, IOUT=10mA V
IN
=100Vac, I
OUT
=100mA V
IN
=100Vac, I
OUT
=600mA
Figure 15. VOUT Ripple Voltage.1 Figure 16. VOUT Ripple Voltage.2 Figure 17. VOUT Ripple Voltage.3
V
IN
=230Vac, IOUT=10mA V
IN
=230Vac, I
OUT
=100mA V
IN
=230Vac, I
OUT
=600mA
Figure 18. VOUT Ripple Voltage.4 Figure 19. VOUT Ripple Voltage.5 Figure 20. VOUT Ripple Voltage.6
0
10
20
30
40
50
60
70
80
0 100 200 300 400 500 600
Ripple Voltage [mVpp]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
Ripple Voltage: 39mVpp
Ripple Voltage: 39mVpp
Ripple Voltage: 60mVpp
Ripple Voltage: 38mVpp
Ripple Voltage: 56mVpp
Ripple Voltage: 72mVpp
V
O
: 50mV/div
Time scale 200µs/div Time scale 10μs/div Time scale 10μs/div
Time scale 10μs/div
Time scale 10μs/divTime scale 200µs/div
V
O
: 50mV/div
8/8
© 2018 ROHM Co., Ltd. No. 60UG082E Rev.001
2018.3
User’s Guide
BM2P161W-EVK-001
Table 4. Parts surface temperature ※Ta:25℃, measured 30minutes after startup
Part
Condition
V
IN
=90Vac,
I
OUT
=0.5A
V
IN
=90Vac,
I
OUT
=0.6A
V
IN
=264Vac,
I
OUT
=0.5A
V
IN
=264Vac,
I
OUT
=0.6A
IC1 51.6℃ 60.7℃ 56.2℃ 62.5℃
D1 55.2℃ 65.2℃ 61.9℃ 67.8℃
L1 47.0℃ 61.4℃ 56.3℃ 70.2℃
R1102
B
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
Notice
ROHM Customer Support System
http://www.rohm.com/contact/
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
Notes
The information contained herein is subject to change without notice.
Before you use our Products, please contact our sales representative
and verify the latest specifica-
tions :
Although ROHM is continuously working to improve product reliability and quality, semicon-
ductors can break down and malfunction due to various factors.
Therefore, in order to prevent personal injury or fire arising from failure, please take safety
measures such as complying with the derating characteristics, implementing redundant and
fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no
responsibility for any damages arising out of the use of our Poducts beyond the rating specified by
ROHM.
Examples of application circuits, circuit constants and any other information contained herein are
provided only to illustrate the standard usage and operations of the Products. The peripheral
conditions must be taken into account when designing circuits for mass production.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly,
any license to use or exercise intellectual property or other rights held by ROHM or any other
parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of
such technical information.
The Products specified in this document are not designed to be radiation tolerant.
For use of our Products in applications requiring a high degree of reliability (as exemplified
below), please contact and consult with a ROHM representative : transportation equipment (i.e.
cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety
equipment, medical systems, servers, solar cells, and power transmission systems.
Do not use our Products in applications requiring extremely high reliability, such as aerospace
equipment, nuclear power control systems, and submarine repeaters.
ROHM shall have no responsibility for any damages or injury arising from non-compliance with
the recommended usage conditions and specifications contained herein.
ROHM has used reasonable care to ensure the accuracy of the information contained in this
document. However, ROHM does not warrants that such information is error-free, and ROHM
shall have no responsibility for any damages arising from any inaccuracy or misprint of such
information.
Please use the Products in accordance with any applicable environmental laws and regulations,
such as the RoHS Directive. For more details, including RoHS compatibility, please contact a
ROHM sales office. ROHM shall have no responsibility for any damages or losses resulting
non-compliance with any applicable laws or regulations.
When providing our Products and technologies contained in this document to other countries,
you must abide by the procedures and provisions stipulated in all applicable export laws and
regulations, including without limitation the US Export Administration Regulations and the Foreign
Exchange and Foreign Trade Act.
This document, in part or in whole, may not be reprinted or reproduced without prior consent of
ROHM.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
■<High Voltage Safety Precautions>
◇ Read all safety precautions before use
Please note that this document covers only the BM2P161W evaluation board
(BM2P161W-EVK-001) and its functions. For additional information, please refer to the
datasheet.
To ensure safe operation, please carefully read all precautions
before handling the evaluation board
Depending on t he c onf iguration of the board and voltages used,
Potentially lethal voltages may be generated.
Therefore, please make sure to read and observe all safety precautions
described in the red box below.
Before Use
[1] Verify that the parts/components are not damaged or missing (i.e. due to the drops).
[2] Check that there are no conductive for eign objects on the board.
[3] Be careful when performing solderin g on the module and/or evaluation board to ensure that
solder splash does not occur.
[4] Check that there is no condensation or water droplets on the circuit board.
During Use
[5] Be careful to not allow conductive objects to come into contact with the board.
[6] Brief accidental contact or even bringing your hand close to the board may result in
discharge and lead to severe injury or death.
Therefore, DO NOT touch the board with your bare hands or bring them too close to
the board.
In addition, as mentioned above please exercise extreme caution when using conductive
tools such as tweezers and screwdrivers.
[7] If used under conditions bey ond its rated voltage, it may cause defects such as s hort-circuit
or, depending on the circumstances, explosion or other permanent damages.
[8] Be sure to wear insulated gloves whe n handling is required during operat ion.
After Use
[9] The ROHM Evaluation Board contains the circuits which store t he high voltage. Since it
stores the charges even after the connec ted power circuits are cut, please discharge the
electricity after using it, and please d eal with it after confirming such electric discharge.
[10] Protect against electric shocks by wearing insulated gloves when handling.
This evaluation board is intended for use only in research and dev elopme nt facilities and should by
handled
only by qualified personnel familiar with all safety and operating
procedures.
We recommend carrying out operation in a safe environment that includes the use of high voltage
signage at all entrances, safety interlocks, and protective glasses.
