1/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
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 Min Typ Max Units Conditions
Input Voltage Range 85 230 264 Vac
Input Frequency 47 50/60 63 Hz
Output Voltage 22.8 24.0 25.2 V
Maximum Output Power 24 W
Output Current Range
(NOTE1) 30 W I
OUT
= 1.25A
Stand-by Power 0 1.00 1.25 A
Efficiency 230 mW I
OUT
= 0A
Output Ripple Voltage
(NOTE2) 89.5 %
Operating Temperature
Range 163 mVpp
Input Voltage Range -10 25 65 ℃
(NOTE1) Please adjust operating time, within any parts surface temperature under 105℃
(NOTE2) Not include spike noise
(NOTE1)
2/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
User’s Guide
BM2P016T-EVK-001
Ta[℃]
Po[W]
-10℃ 25℃ 50℃ 65℃
30W
24W
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
Figure 1. Connection Circuit
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.
Figure 2. Temperature Derating curve
AC
Power
Supply
+
−
DC Multi Meter
V Electronic
Load
Power
Meter
CN1 : from the left ①:“Frame GND”, ②:N.C, ③:AC (N), ④:AC (L)
FG
FG
3/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
User’s Guide
BM2P016T-EVK-001
Schematics
V
IN
= 85～264Vac, V
OUT
= 24V
Figure 3. BM2P016T-EVK-001 Schematics
DRAIN
SOURCE
N.C
FADJ
GND
FB
VCC
4/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
User’s Guide
BM2P016T-EVK-001
Bill of Materials
Table 1. BoM of BM2P016T-EVK-001
Part
Reference Qty. Type Value Description Part Number Manufacture Configuration
mm
(
inch
)
C1 1 Film 0.22μF 275Vac, ±10% LE224 OKAYA -
C2,C3,C4,
C5 4 Ceramic 2200pF 300Vac, ±20% DE1E3KX222MB4BP01F Murata -
C6 1 Electrolytic 47μF 450V, ±20% 450LLE47MEFC18x25 Rubycon -
C7 1 Ceramic 47pF 1000V, X7R, ±10% RDER73A470J2K1H03B Murata -
C8 1 Ceramic 1000pF 100V, X7R, ±20% HMK107B7102MA-T Taiyo Yuden 1608 (0603)
C9 1 Ceramic 10μF 35V, X7R, ±20% GMK316AB7106ML-TR Taiyo Yuden 3216 (1206)
C11 1 Ceramic 2200pF 1000V, X7R, ±10% RDER73A222K2K1H03B Murata -
C12 1 Electrolytic 1000μF 35V, ±20% UPA1V102MPD Nichicon -
C13 1 Ceramic 10μF 35V X7R, ±20% GMK316AB7106ML-TR Taiyo Yuden 3216 (1206)
C14 1 Ceramic 220pF 630V C0G, ±5% GRM31A5C2J221J Murata 3216 (1206)
C15 1 Ceramic 0.1μF 100V, X7R, ±20% HMK107B7104MA-T Taiyo Yuden 1608 (0603)
ZNR1 1 Varistor - 470V, 400A V470ZA05P Littelfuse -
F1 1 Fuse 1A 250V 39211000000 Littelfuse -
LF1 1 Line Filter 13mH 1A FT20-087 Alpha Trans -
LF2 1 Line Filter 60μH 1A LF1246Y Alpha Trans -
T1 1 Transformer - Bobin:EI-2506,
Core:EE25/20 XE2096 Alpha Trans -
PC1 1 Optocoupler - 5kV PC817 SHARP -
IC1 1 AC/DC Converter - - BM2P016T-Z ROHM DIP7
IC2 1 Shunt Regulator - ±0.5% TL431BIDBZT TI SOT-23-3
DB1 1 Bridge 1A 600V S1NB60-7062 Shindengen -
D1 1 FRD 0.5A 200V RF05VAM2S ROHM TUMD2M
D2 1 FRD 0.2A 800V RFU02VSM8S ROHM TUMD2SM
D3 1 FRD 6A 200V RFN6BM2D ROHM TO-252
R1,R2,R3 3 Resistor 220kΩ 0.25W, 200V, ±5% MCR18EZPJ224 ROHM 3216 (1206)
R4,R5 2 Resistor 0.82Ω 0.25W, ±1% MCR18EZHFLR820 ROHM 3216 (1206)
R6,R7,R15 3 Resistor 10Ω 0.25W, ±5% MCR18EZPJ100 ROHM 3216 (1206)
R8 1 Resistor 100kΩ 2W, 700V, ±2% ERG2SJ104E Panasonic -
R9 1 Resistor 68kΩ 0.1W, ±1% MCR03EZPFX6802 ROHM 1608 (0603)
R10 1 Resistor 18kΩ 0.1W, ±1% MCR03EZPFX1802 ROHM 1608 (0603)
R11 1 Resistor 10kΩ 0.1W, ±1% MCR03EZPFX1002 ROHM 1608 (0603)
R12 1 Resistor 10kΩ 0.1W, ±5% MCR03EZPJ103 ROHM 1608 (0603)
R13 1 Resistor 4.7kΩ 0.1W, ±5% MCR03EZPJ472 ROHM 1608 (0603)
R14 1 Resistor 1kΩ 0.1W, ±5% MCR03EZPJ102 ROHM 1608 (0603)
5/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
User’s Guide
BM2P016T-EVK-001
PCB
Figure 4. Top Silkscreen (Top view)
Figure 5. Bottom Layout (Top view)
6/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
User’s Guide
BM2P016T-EVK-001
Transformer Design
Product：XE2145A AlphaTrans Corp.
Bobin ：EI-2506 10PIN
Core ：EE25/20 JSF
Figure 6. Connection Diagram Figure 7. Winding structure diagram
Table 2. Winding Specification
Winding PIN Winding
Material
Number of Turns
Winding* Barrier
Tape
Insulation
Tape
NP1-1 ③→② 2UEW 0.30 56T / 2Layer
1T
NS1-1 ⑦→⑧ TEX-E 0.50 14T
2mm 1T
NP2 ⑤→④ 2UEW 0.30 18T
1T
NS1-2 ⑧→⑨ TEX-E 0.50 14T
1T
NP1-2 ②→① 2UEW 0.30 54T / 2Layer
3T
*All windings are closely wound
Inductance (Lp) 1350μH±10% (100kHz,1V)
Leakage Inductance 60μH MAX
Withstand Voltage Pri – Sec AC1500V
Sec - Core AC1500V
Pri – Core AC500V
Insulation resistance 100MΩ over (DC500V)
7/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
User’s Guide
BM2P016T-EVK-001
Performance Data
Figure 8. Load Regulation (I
OUT
vs. V
OUT
) Figure 9. LOAD Regulation (I
OUT
vs. Efficiency)
Figure 10. Load Regulation (I
OUT
vs. P
LOSS
) Figure 11. LOAD Regulation (I
OUT
vs. P
LOSS
)
Table 3. Load Regulation (V
IN
=100Vac) Table 4. Load Regulation (V
IN
=230Vac)
I
OUT
V
OUT
Efficiency
250mA 23.955 V 84.52 %
500mA 23.952 V 88.12 %
750mA 23.941 V 88.02 %
1000mA 23.933 V 87.73 %
21.6
22.0
22.4
22.8
23.2
23.6
24.0
24.4
24.8
25.2
25.6
26.0
26.4
0 500 1000 1500 2000 2500
Output Voltage [V]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
0
10
20
30
40
50
60
70
80
90
100
0 500 1000 1500 2000 2500
Efficiency [%]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
0
1
2
3
4
5
6
7
8
0 250 500 750 1000 1250
Power Loss [W]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1 10 100
Power Loss [W]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
I
OUT
V
OUT
Efficiency
250mA 23.955 V 84.65 %
500 mA 23.938 V 87.10 %
750 mA 23.928 V 89.06 %
1000 mA 23.920 V 89.49 %
8/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
User’s Guide
BM2P016T-EVK-001
Figure 12. LINE Regulation (I
OUT
vs. V
OUT
) Figure 13. LINE Regulation (I
OUT
vs. Efficiency)
Figure 14. Switching Frequency (I
OUT
vs. F
SW
) Figure 15. Primary Peak Current (I
OUT
vs. I
peak
)
21.6
22.0
22.4
22.8
23.2
23.6
24.0
24.4
24.8
25.2
25.6
26.0
26.4
80 100 120 140 160 180 200 220 240 260
Output Voltage [V]
Input Voltage [Vac]
I
OUT
=0.1A
IOUT=0.5A
IOUT=1.0A
IOUT=1.25A
0
10
20
30
40
50
60
70
80
90
100
80 100 120 140 160 180 200 220 240 260
Efficiency [%]
Input Voltage [Vac]
I
OUT
=0.1A
IOUT=0.5A
IOUT=1.0A
IOUT=1.25A
0
10
20
30
40
50
60
70
0 250 500 750 1000 1250
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
0 250 500 750 1000 1250
Primary Peak Current [A]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
9/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
User’s Guide
BM2P016T-EVK-001
Figure 16. Secondary Peak Current (I
OUT
vs. I
peak
) Figure 17. VOUT Ripple Voltage (I
OUT
vs. V
ripple
)
V
IN
=100Vac, IOUT=20mA V
IN
=100Vac, I
OUT
=1.0A V
IN
=100Vac, I
OUT
=1.25A
Figure 18. VOUT Ripple Voltage.1 Figure 19. VOUT Ripple Voltage.2 Figure 20. VOUT Ripple Voltage.3
V
IN
=230Vac, IOUT=20mA V
IN
=230Vac, I
OUT
=1.0A V
IN
=230Vac, I
OUT
=1.25A
Figure 21. VOUT Ripple Voltage.4 Figure 22. VOUT Ripple Voltage.5 Figure 23. VOUT Ripple Voltage.6
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0 250 500 750 1000 1250
Primary Peak Current [A]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
0
50
100
150
200
250
0 250 500 750 1000 1250
Ripple Voltage [mVpp]
Output Current [mA]
V
IN
=100Vac
VIN=230Vac
Ripple Voltage: 105mVpp Ripple Voltage: 175mVpp Ripple Voltage: 200mVpp
Ripple Voltage: 125mVpp Ripple Voltage: 163mVpp Ripple Voltage: 191mVpp
V
O
2V/div
Time scale 5ms/div
V
O
2V/div
Time scale 10μs/div Time scale 10μs/div
Time scale 5μs/div
Time scale 5μs/div
Time scale 2ms/div
10/10
© 2017 ROHM Co., Ltd. No. 60UG047E Rev.001
2017.10
User’s Guide
BM2P016T-EVK-001
Table 5. Parts surface temperature ※Ta:25℃, measured 30minutes after startup
Part
Condition
V
IN
=100Vac,
I
OUT
=1.0A
V
IN
=100Vac,
I
OUT
=1.25A
V
IN
=230Vac,
I
OUT
=1.0A
V
IN
=230Vac,
I
OUT
=1.25A
IC1 59.5℃ 66.4℃ 58.5℃ 78.5℃
T1 64.8℃ 66.4℃ 54.7℃ 63.4℃
R8 56.3℃ 68.2℃ 55.3℃ 61.5℃
D3 60.4℃ 64.7℃ 56.6℃ 62.9℃
IC1 59.5℃ 66.4℃ 58.3℃ 78.6℃
V
IN
=100Vac/60Hz, I
OUT
=1.25A V
IN
=230Vac/50Hz, I
OUT
=1.25A
QP margin=13.1dB, AV margin=17.2dB QP margin= 9.9dB, AV margin=13.4dB
Figure 24. Conducted Emission.1 Figure 25. Conducted Emission.2
V
IN
=100Vac/60Hz, I
OUT
=1.25A V
IN
=230Vac/50Hz, I
OUT
=1.25A
QP margin=11.0dB, AV margin=16.1dB QP margin= 10.0dB, AV margin=15.3dB
Figure 26. Radiated Emission.1 Figure 27. Radiated Emission.2
CISPR22.B CISPR22.B
QP margin = 11.0dB
CISPR22.B
QP margin = 10.0dB
CISPR22.B
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 BM2P016T evaluation board
(BM2P016T-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 be low.
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 e valuation 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 B oard 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.
