Rohm BM2P10B1J-EVK-001 User manual

Isolation Fly-back Conveter PWM method
Output 24W 12V
BM2P10B1J-EVK-001

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© 2018 ROHM Co., Ltd. All rights reserved.
＜High Voltage Safety Precautions＞
◇Read all safety precautions before use
Please note that this document covers only the BM2P10B1J evaluation board
(BM2P10B1J-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 the configuration 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 foreign objects on the board.
[3] Be careful when performing soldering 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 beyond its rated voltage, it may cause defects such as short-circuit or,
depending on the circumstances, explosion or other permanent damages.
[8] Be sure to wear insulated gloves when handling is required during operation.
After Use
[9] The ROHM Evaluation Board contains the circuits which store the high voltage. Since it stores the
charges even after the connected power circuits are cut, please discharge the electricity after using
it, and please deal 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 development 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.

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© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
User’s Guide
Figure 1. BM2P10B1J-EVK-001
AC/DC Converter
Flyback Type PWM Mode
Isolated 12 V 2.0 A 24 W
BM2P10B1J Evaluation Board
BM2P10B1J-EVK-001
General Description
This evaluation board outputs an isolated voltage of 12 V from an input of 90 Vac to 264 Vac, and the maximum output current is 2.0 A.
BM2P10B1J-ZwhichisPWMmethodDC/DCconverterICbuilt-in730 VMOSFET isused.
Built-in the low on resistor (1.0 Ω) and high voltage tolerant MOSFET (730 V) make designs easy.
PWM controller for AC / DC power supplies, the BM2P10B1J provides the optimum system for all products with outlets.

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Performance Specification
Not guarantee the characteristics is representative value.
Unless otherwise specified VIN = 230 Vac , IOUT = 2.0 A , Ta = 25 °C
(Note 1) Not include spikes noise.
Derating
Parameter
Symbol
Min
Typ
Max
Units
Conditions
Input Voltage Range
VIN
90
230
264
V
Input Frequency
fLINE
47
50/60
63
Hz
Output Voltage
VOUT
11.64
12.0
12.36
V
Output Current Range (Note 1)
IOUT
0
2
A
Maximum Output Power
POUT
-
-
24
W
IOUT = 2A
Standby Input Power
PINSTBY
-
80
-
mW
IOUT = 0 A
Power supply efficiency
η
-
86.5
-
%
Output Ripple Voltage (Note 1)
VRIPPLE
-
0.13
0.24
Vpp
BW=20MHz
Oprating Temperature
Top
-10
+25
+65
°C
Figure 2. Temperature derating curve

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
AC Power Supply
Load
Power Meter
DC Meter
Figure 3. Diagram of How to Connect
Operation Procedure
1. Operation Equipment
(1) AC power supply (90 Vac to 264 Vac, 100 W or more)
(2) Load equipment (2 A at maximum value)
(3) DC voltmeter
2. Connect method
(1) Preset the AC power to 90 Vac to 264 Vac and turn off the power output.
(2) Set the load below the rated current of each output to disable the load.
(3) Connect the N pin of the power supply to the CN1-1: AC (N) pin and the L pin to the CN1-2: AC (L) pin with a pair of
wires.
(4) Connect each load to VOUT pin from the positive pin and to GND pin with a pair of wires.
(5) When connecting a power meter, connect as follows. (For details, refer to the User's Manual of the electricity meter
you are using.)
(6) Connect the positive pin of the DC voltmeter to VOUT pin and the negative pin to GND pin for output voltage
measurement.
(7) AC power supply switch is ON.
(8) Make sure that the DC voltmeter reading is at the set voltage (12 V).
(9) Electronic load switch is ON.
CN1-2 AC (L)
CN1-1 AC (N)
12Ｖ

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Application Circuit
This evaluation board operates in flyback mode at a maximum frequency of around 100 kHz..
The output (12 V) voltage is monitored by a feedback circuit and feed back to the FB pin of BM2P10B1J 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.

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 4. Pin Configuration
BM2P10B1J General Description
Features
◼PWM Current Mode
◼Frequency Hopping Function
◼Burst Operation at Light Load
◼Frequency Reduction Function
◼Built-in 730 V Startup Circuit
◼Built-in 730 V Switching MOSFET
◼VCC UVLO (Under Voltage Lockout)
◼VCC OVP (Over Voltage Protection)
◼SOURCE Pin Open Protection
◼SOURCE Pin Function of Leading Edge Blanking
◼Over Current Detection Function per Cycle
◼Over Current Detection AC Compensation Function
◼Soft Start Function
◼Secondary Over Current Protection Circuit
Pin Configuration
Key Specifications
◼Operating Power Supply Voltage Range :
VCC Pin : 8.9 V to 26.0 V
DRAIN Pin : 730 V (Max)
◼Circuit Current (ON) 1:
BM2P10x1J-Z: 0.90 mA (Typ)
BM2P10x3J-Z: 0.65 mA (Typ)
◼Circuit Current (ON) 2: 0.30 mA (Typ)
◼Frequency Range 1: 100 kHz (Typ)
◼Operating Temperature Range : -40 °C to +105 °C
◼MOSFET ON Resistance:
BM2P10x1J-Z: 1.0 Ω (Typ)
BM2P10x3J-Z: 3.0 Ω (Typ)
Package W (Typ) x D (Typ) x H (Max)
DIP7K 9.27 mm x 6.35 mm x 8.63 mm
pitch 2.54 mm
Applications
AC Adapter, TV, Various Home Appliances (Vacuum
Cleaner, Humidifier, Air purifier, Air Conditioner, IH
Cooking Heater, Rice Cooker, etc.)
Pin Descriptions
No.
Pin name
I/O
Function
1
SOURCE
I/O
MOSFET SOURCE pin
2
BR
I
BROWNOUT pin
3
GND
I/O
GND pin
4
FB
I/O
Feedback-signal-in pin
5
VCC
I
Power supply input pin
6
DRAIN
I/O
MOSFET DRAIN pin
7
DRAIN
I/O
MOSFET DRAIN pin
GND
FB
1
2
3
4
DRAIN
7
6
5
DRAIN
VCC
SOURCE
BR
(TOP VIEW)

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 7. Output Voltage vs Input Voltage
Figure 8. Efficiency vs Input Voltage
Figure 6. Efficiency vs Output Current
Measurement Data
1. Load Regulation
2. Line Regulation
VOUT2, IOUT2 = 0 A
VOUT1
Figure 5. Output Voltage vs Output Current
11.4
11.6
11.8
12
12.2
12.4
12.6
0 0.5 1 1.5 2 2.5
VOUT (V)
IOUT(A)
90 V
115 V
230 V
264 V
40
50
60
70
80
90
100
0 0.5 1 1.5 2 2.5
Efficiency (%)
IOUT(A)
90 V
115 V
230 V
264 V
11.4
11.6
11.8
12.0
12.2
12.4
12.6
90 140 190 240 290
VOUT (V)
VIN(V)
Io=2A
70
75
80
85
90
95
100
80 180 280
Efficiency (%)
VIN(V)
0.5A
1A
1.5A
2A

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 9. Frequency vs Output Power
Figure 10. VIN 0 V to 230 V
Measurement Data – continued
3. Switching Frequency
4. Input Voltage Slowup
0
10
20
30
40
50
60
70
80
90
100
0.00 0.50 1.00 1.50 2.00 2.50
Switching Frequency (kHz)
IOUT(A)
90V
115V
230V
264V
100 V / Div
Input Voltage VIN
Output Voltage Vout
5 V / Div

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 13. VD, IS VIN = 90 Vac, IOUT= 2 A
Figure 14. VD, IS VIN = 264 Vac, IOUT= 2 A
Figure 11. VDS, ID VIN = 90 Vac, IOUT= 2 A
Figure 12. VDS, ID VIN = 264 Vac, IOUT= 2 A
Measurement Data – continued
5. Switching Wave Form
MOSFET VDS
100 V / Div
DRAIN Current ID
MOSFET VDS
0.5 A / Div
0.5 A / Div
Diode Voltage VD
20 V / Div
Diode Current IS
2 A / Div
Diode Voltage VD
20 V / Div
Diode Current IS
100V / Div
2 A / Div
DRAIN Current ID

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 15. VDS, ID VIN = 90 Vac, VOUT Shorted
Figure 17. VIN = 90 Vac, IOUT = 2A
Figure 18. VIN = 264 Vac, IOUT = 2A
Figure 16. VD, IS VIN = 264 Vac, VOUT Shorted
Measurement Data – continued
5. Switching Wave Form- continued
6. Startup Wave Form
Output Voltage VOUT
MOSFET VDS
2 V / Div
250 V / Div
Input Voltage VIN
DRAIN Current ID
2 V / Div
250 V / Div
100 V / Div
0.5 A / Div
Diode Voltage VD
20 V / Div
Diode Current IS
2 A / Div
Input Voltage VIN
Output Voltage VOUT

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 19. VIN = 90 Vac, IOUT = switch 0.06 A / 2 A
Figure 20. VIN = 264 Vac, IOUT = switch 0.06 A / 2 A
Output Ripple Voltage VRIPPLE2
= 0.10 Vpp
Figure 21. VIN = 90 Vac, IOUT = 2 A
Figure 22. VIN = 264 Vac, IOUT = 2 A
Table 1. Surface Temperature of Parts (Ta = 29 °C)
0.2 V / Div
Measurement Data – continued
7. Dynamic Load Fluctuation
8. Output Voltage Ripple Wave Form
9. Temperature of Parts Surface IOUT1
They are measured after 20 minutes from applying a power supply.
Part
Condition
VIN = 90 Vac, IOUT1 = 2 A
VIN = 264 Vac, IOUT1 = 2 A
IC1
77.8 °C
78.6 °C
Bridge Diode DB1
78.1 °C
54.9 °C
VOUT
IOUT
0.2 V / Div
1 A / Div
VOUT
IOUT
0.2 V / Div
1 A / Div
Output Ripple Voltage VRIPPLE
0.2 V /Div
Output Ripple Voltage VRIPPLE
0.2 V /Div

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 23. VIN: 230 Vac / 50 Hz, IOUT: 2 A
Figure 24. VIN: 115 Vac / 50 Hz, IOUT: 2 A
Measurement Data – continued
10. EMI Conducted Emission:CISPR22 Pub 22 Class B
QP margin: 17.2dB 9.0 dB
AVE margin: 11.9dB 6.4 dB
QP margin: 12.0dB
AVE margin: 10.7dB 10.4 dB

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 25. BM2P10B1J-EVK-001 Schematics
Schematics
VIN = 90 Vac to 264 Vac、VOUT = 12 V 2 A

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Parts List
Materials may be changed without notifying.
Specifications Parts name Manufacture
C1 0.1 µF, 275 V 890324023023CS WURTH ELECTRONIK
C2 Non Mounted - -
C5 47 µF, 450 V 450BXW47MEFR16X25 RUBYCON
C6 2200 pF, 1000 V GCJ31BR73A222KXJ1K MURATA
C7 22 pF, 1000 V RCE5C3A220J2K1H03B MURATA
C8 1000 pF, 100 V HMK107B7102KA-T TAIYO YUDEN
C9 1000 pF, 100 V HMK107B7102KA-T TAIYO YUDEN
C10 10 µF, 35 V GMK316AB7106KL-TR TAIYO YUDEN
C11 2200 pF, X1:440 Vac, Y1:300 Vac DE1E3RA222MA4BP01F MURATA
C13 1000 µF, 25 V UPA1E102MPD3 NICHICON
C14 1000 µF, 25 V UPA1E102MPD3 NICHICON
C15 0.1 µF, 100 V HMK107B7104KA-T TAIYO YUDEN
C16 0.1 µF, 100 V HMK107B7104KA-T TAIYO YUDEN
C17 680 pF, 1000 V GRM31B7U3A681JW31 MURATA
CN1 B2P3-VH JST
D1 FRD, 0.8 A, 700 V RFN1LAM7S ROHM
D2 0.2 A, 400 V RRE02VSM4S ROHM
D3 SBD, 10 A, 150 V RB088BGE150 ROHM
D4 Non Mounted - -
DB1 1 A, 800 V D1UBA80 SHINDENGEN
F1 1.6 A, 300 V 36911600000_ LITTELFUSE
GND BLACK LC-2-G-BLACK MAC8
IC1 BM2P10B1J-Z ROHM
IC2 TL431BIDBZT TI
LF1 26.5 mH SSR10VS07265 TOKIN
PC1 LTV-817-B LITEON
R1 Non Mounted - -
R2 Non Mounted - -
R3 Non Mounted - -
R4 0.62 Ω LTR100JZPFLR620 ROHM
R5 5.6 Ω MCR18EZPJ5R6 ROHM
R6 0 Ω MCR18EZPJ000 ROHM
R7 100 kΩ MOS2CT52R104J KOA
R10 33 kΩ MCR03EZPFX3302 ROHM
R11 5.6 kΩ MCR03EZPFX5601 ROHM
R12 10 kΩ MCR03EZPFX1002 ROHM
R13 2.2 kΩ MCR03EZPJ222 ROHM
R14 1 kΩ MCR03EZPJ102 ROHM
R15 27 kΩ MCR03EZPJ273 ROHM
R16 1.2 MΩ KTR18EZPJ125 ROHM
R17 1 MΩ KTR18EZPJ105 ROHM
R18 20 kΩ MCR03EZPJ203 ROHM
R19 10 Ω ESR18EZPJ100 ROHM
T1 EE25-20 XE2674Y A ALPHA TRANS
VOUT WHITE LC-2-G-WHITE MAC8
ZNR1 470 V, 400 A, φ 5 mm V470ZA05P LITTELFUSE
Item

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 26. TOP Layout (Top view)
Figure 27. Bottom Layout (Top View)
Layout
Size: 101 mm x 55 mm

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Figure 28. Circuit Diagram
Figure 29. Structure Diagram
Table 2. Product Specification of XE2674Y A
Specification of the Transformer
Manufacture Alphatrans Co., Ltd. (1-7-2, Bakurou-cho, Chuo-ku, Osaka City, 541-0059, Japan)
http://www.alphatrans.jp/
Product Name: XE2674Y A
Bobbin: 10PIN
Core: EE25/20
◼Primary Inductance: 311.5 μH ±10 %
(100 kHz, 1 V)
◼Withstand Voltage
Between Primary and Secondary: AC1500 V
Between Primary and Core: AC1500 V
Between Secondary and Core: AC500 V
■Insulation Resistance 100 MΩ or more (DC500 V)
No.
Transformer
Winding Pin
Wire
Turn
Number
Tape
Layer
Wire
Specification
Start
Finish
1
NP1
3
2
2UEW / Φ0.32 x 1
25
1
COMPACT
2
NS1
9
7
TEX-E / Φ0.60 x 1
8
1
COMPACT
3
ND
4
5
2UEW / Φ0.20 x 1
10
1
SPACE
4
NS2
8
6
TEX-E / Φ0.60 x 1
8
1
COMPACT
5
NP2
2
1
2UEW / Φ0.32 x 1
25
1
COMPACT

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User’s Guide
BM2P10B1J-EVK-001
© 2022 ROHM Co., Ltd.
No. 65UG072E Rev.001
JAN.2023
Revision History
Date
Rev.
Changes
16.Jan.2023
001
New Release

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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 ensurethe 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
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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.
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