Rohm BM2P134E-EVK-001 User manual

AC/DC Convertor
Isolated PWM type, 12 W (12 V/1.0 A)
BM2P134E-Z Evaluation Board

Notice
www.rohm.com HVB01E
© 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 BM2P134E-Z evaluation board
(BM2P134E-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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© 2021 ROHM Co., Ltd.
No. 63UG097E Rev.001
Jan.2021
User’s Guide
AC-DC Convertor
PWM type Isolated ACDC Converter
Output 12 W 12 V/1.0 A
BM2P134E Reference Board
BM2P134E-EVK-001
Futures
(1) Built-in 650 V SJ-FET and Start up circuit
(2) Frequency 130 kHz
(3) Corresponded W/W input voltage 90 Vac to 264 Vac
(4) Adjustable under voltage lock out by BR terminal
(5) Adjustable AC over voltage protection by ZT terminal
Electrical Characteristics
Table 1. Input Range
Description
Min
Typ
Max
Units
Conditions
Input Voltage Range
90
230
264
Vac
Input Frequency Range
47
50/60
63
Hz
Operating Temperature
-10
25
65
°C
Table 2. Evaluation board specification
These are representative values and not a guarantee of the characteristics, unless stated otherwise use VIN = 230 Vac, IOUT = 1.0 A, Ta: 25 ° C.
Description
Min
Typ
Max
Units
Conditions
Output Voltage
11.4
12
12.6
V
Output Maximum Power
-
-
12
W
Output Current Range (Note 1)
-
-
1.0
A
No Load Power Consumption
-
150
-
mW
VIN = 264 Vac
Efficiency
-
84.5
-
%
Output Ripple Voltage (Note 2)
-
-
300
mV
(Note 1) Adjust the operating time so that surface temperature of no component exceeds 105 ° C
(Note 2) Do not consider spike noise
Figure 1. Evaluation Board

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User’s Guide
BM2P134E-EVK-001
© 2021 ROHM Co., Ltd.
No. 63UG097E Rev.001
Feb.2021
Operation Procedure
Operation equipment
(1) AC power supply 90 Vac to 264 Vac, over 20 W
(2) Electronic Load capacity 1.0 A
(3) Multimeter
(4) Power Meter
Connection method
Turn off each power supply and connect the measuring instrument as shown below.
Turn on the power of the measuring instrument and set the input voltage.
When removing the measuring instrument, reduce the input voltage before turning off the power for measurement.
Figure 2. Connection Circuit

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User’s Guide
BM2P134E-EVK-001
© 2021 ROHM Co., Ltd.
No. 63UG097E Rev.001
Feb.2021
Schematics
VIN = 90 Vac to 264 Vac, VOUT = 12 V, IOUT =1.0 A
Figure 3. BM2P134E-EVK-001 Circuit
0.68
0.1 uF
2200 pF
300 V
5.1
K
33 K
NC NC
1000uF
35V
BM2P134E-Z
10uF
35V
NC
12V, 1A

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User’s Guide
BM2P134E-EVK-001
© 2021 ROHM Co., Ltd.
No. 63UG097E Rev.001
Feb.2021
Bill of Materials
Table 3. Bill of Materials
BM2P134E-EVK-001
Specifications Parts name Manufacture
Diode Bridge BR1 1 A, 1000 V DF10S DIODES Inc
C1,C2 0.22 µF, 310 Vac 890334023028 WURTH ELECTRONIK
C3 NON MOUNTED
C4 47 μF, 450 V UCY2W470MHD6TN NICHICON
C5,C9 1000 pF, 100 V HMK107B7102KA-T TAIYO YUDEN
C6 NON MOUNTED
C7 4.7 μF, 50 V UVZ1H4R7MDD1TD NICHICON
C8 2200 pF, 630 V GRM31A7U2J222JW31 MURATA
C10,C16 0.1 µF, 100 V HMK107B7104KA-T TAIYO YUDEN
C12 NON MOUNTED
C13 2200 pF, 300 V DE1E3RA222MJ4BP01F MURATA
C14 220 pF, 630 V GRM31A5C2J221JW01D MURATA
C15 1000 µF, 35 V UPA1V102MPD NICHICON
C17 NON MOUNTED
C18 NON MOUNTED
R24 10 µF, 35 V GMK316AB7106ML-TR TAIYO YUDEN
Connector CON1,CON2 691213710002 WURTH ELECTRONIK
D3 FRD, 0.8 A, 700 V RFN1LAM7S ROHM
D4 FRD, 0.5 A, 200 V RF05VAM2STR ROHM
D5 SBD, 10 A, 150 V RB088BGE150 ROHM
Fuse F1 2 A, 300 V 36912000000 LITTELFUSE
PhotoCoupler ISO1 LTV-817-B LITEON
L1 20 mH 744823220 WURTH ELECTRONIK
L3 - SHORT -
-Q1 NON MOUNTED
R1,R2,R3 560 kΩ ESR18EZPJ564 ROHM
R4 NON MOUNTED
R5 NON MOUNTED
R6 NON MOUNTED
R8,R9 2.2 MΩ ESR18EZPJ225 ROHM
R10 33 kΩ MCR03EZPJ333 ROHM
R11 0.68 Ω MCR100JZHFLR680 ROHM
R13 47 kΩ ERG2SJ473E PANASONIC
R14 10 Ω MCR18EZPJ100 ROHM
R15 5.1 kΩ MCR03EZPJ512 ROHM
R16 27 kΩ ESR03EZPJ273 ROHM
R17 100 Ω ESR18EZPJ101 ROHM
R18,R19 1 kΩ MCR03EZPJ102 ROHM
R20 10 kΩ MCR03EZPJ103 ROHM
R21 36 kΩ MCR03EZPFX3602 ROHM
R22 5.6 kΩ MCR03EZPFX5601 ROHM
R23 11 kΩ MCR03EZPFX1102 ROHM
R25 NON MOUNTED
R26 NON MOUNTED
RV1 320 V, 1.2 KA, φ 7 mm V07E320P LITTELFUSE
Transformer TR1 EE20/10/6 XE2436 ALPHA TRANS
U2 BM2P134E-Z ROHM
U3 TL431BIDBZT TI
IC
Item
Diode
Inductor
Capacitor
Resistor

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User’s Guide
BM2P134E-EVK-001
© 2021 ROHM Co., Ltd.
No. 63UG097E Rev.001
Feb.2021
Design Reference of Transformer
Manufacturer: Wurth.
Bobbin: EE20/10/6 (Vertical)
Core: EE20/10/6
1
2
3
4
5
10
9
8
7
6
TERM. NO. s FOR REF. ONLY
PART MUST INSERT FULLY TO
SURFACE A IN RECOMMENDED GRID
.028 SQ.(10)
[.70] .996 MAX.
[25.30]
.138/.157 *
[3.50/4.00]
-A-
.894 MAX
[22.70]
LOT CODE & DATE CODE
DOT LOCATES TERM. #1
.575 MAX.
[14.60]
.400
[10.16]
Ø 0.063(10)
[1.60]
.150(8)
[3.80]
RECOMMENDED
P>C PATTERN, COMPONENT SIDE
Figure 4. Bobbin diagram
Figure 5. Winding structure diagram
Table 4. Wurth Transformer Winding Specification
Coil
Terminal
Turns
Wire
Winding Method
NP1
3-2
32
1 X1UEW 0.25 mm
1 Layer Space
NS1
10-8
10
1 X1TIW 0.55 mm
1 Layer Space
ND
4-5
13
1 X1UEW 0.18 mm
1 Layer Space
NS2
9-7
10
1 X TIW 0.55 mm
1 Layer Space
NP2
2-1
31
1 X1UEW 0.25 mm
1 Layer Space
Inductance (LP): 397 μH ± 10 %
Leakage Inductance: 20 μH Max
Withstand Voltage: Pri - Sec AC3000 V
Pri - Core AC1800 V
Sec - Core AC1800 V
Insulation resistance: 100 MΩ over (DC500 V)
TAPE
TAPE
TAPE
TAPE
BOBBIN
AUXILLARY (ND)
PRIMARY (NP1)
SECONDARY(NS1)
SECONDARY(NS2)
PRIMARY (NP2)
TAPE
1
2
3
5
4
7
9
8
10
NP2
NP1
ND
NS2
NS1
EE20/10/6

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User’s Guide
BM2P134E-EVK-001
© 2021 ROHM Co., Ltd.
No. 63UG097E Rev.001
Feb.2021
PCB
Size: 104 mm x 50 mm
Figure 6. Top Silkscreen (Top view)
Figure 7. Bottom Layout (Top view)

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User’s Guide
BM2P134E-EVK-001
© 2021 ROHM Co., Ltd.
No. 63UG097E Rev.001
Feb.2021
1
2
3
4 5
6
7
SOURCE BR GND FB
DRAIN VCC ZT
TOP VIEW
BM2P134E Overview
Features
■ PWM frequency of 130 kHz
■ PWM Current mode method
■ Built-in Frequency Hopping Function
■ Burst Operation at Light Load
■ Frequency Reduction Function
■ Built-in 650 V Starter Circuit
■ Built-in 650 V Super Junction MOSFET
■ VCC Pin Under Voltage Protection
■ VCC Pin Over Voltage Protection
■ Over Current Limiter Function per Cycle
■ Over Current Limiter with AC Voltage Correction
■ Soft Start Function
■ Brown IN/OUT Function
■ ZT Pin OVP Function
Key Specifications
◼Operating Power Supply Voltage Range:
VCC: 8.90 V to 26.00 V
DRAIN: 650 V(Max)
◼Operating Current(Normal): 1.00 mA(Typ)
◼Operating Current(Burst): 0.30 mA(Typ)
◼Switching Frequency: 130 kHz(Typ)
◼MOSFET ON Resistance: -40 °C to +105 °C
◼MOSFET ON Resistance: 3.0 Ω(Typ)
package : W(Typ) x D(Typ) x H(Max)
DIP7AK 9.27 mm x 6.35 mm x 8.63 mm
Pitch 2.54 mm
Table 5. BM2P134E pin description
No
Pin
Name
I/O
Function
1
SOURCE
I/O
MOSFET SOURCE pin
2
BR
I
AC voltage detect pin
3
GND
I/O
GND pin
4
FB
I
Feedback signal input pin
5
ZT
I
Auxiliary winding Input pin
6
VCC
I
Power supply Input pin
7
DRAIN
I/O
MOSFET DRAIN pin
Figure 8. IC Pin Diagram
Figure 9. Package Image

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User’s Guide
BM2P134E-EVK-001
© 2021 ROHM Co., Ltd.
No. 63UG097E Rev.001
Feb.2021
Measurement DATA
Constant Load Regulations
Figure 10. Load Regulation
(IOUT vs. VOUT)
Figure 11. Load Regulation
(IOUT vs. Efficiency)
Figure 12. Load Regulation
(IOUT vs. FSW)
Figure 13. Load Regulation
(IOUT vs. PLOSS)
11.0
11.4
11.8
12.2
12.6
13.0
0 0.5 1 1.5
Output Voltage [V]
Output Current [A]
90
264
40
45
50
55
60
65
70
75
80
85
90
0 0.2 0.4 0.6 0.8 1
Efficiency [%]
Output Current [A]
90
264
40
50
60
70
80
90
100
110
120
130
140
0 0.2 0.4 0.6 0.8 1
Frequency [kHz]
Output Current [A]
90
264
0
1
1
2
2
3
3
0 0.2 0.4 0.6 0.8 1
Power Loss [W]
Output Current [A]
90
264