Rohm BM2SC123FP2-LBZ User manual

AC/DC Converter
Built-in SiC MOSFET Isolation Fly-back Converter
Quasi-Resonant method 48 W 24 V
BM2SC123FP2-LBZ Reference Board
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Notice
www.rohm.com HVB01E
© 2019 ROHM Co., Ltd. All rights reserved.
＜High Voltage Safety Precautions＞
◇Read all safety precautions before use
Please note that this document covers only the BM2SC123FP2-LBZ evaluation board
(BM2SC123FP2-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. 64UG007E Rev.003
Jun. 2021
User’s Guide
AC/DC Converter
Built-in SiC MOSFET
Isolated Fly-back Converter
QR method Output 48 W 24 V
BM2SC123FP2-LBZ Reference Board
BM2SC123FP2-EVK-001
Feature
(1) Built-in 1700 V SiC MOSFET
(2) Wide input voltage range by SiC MOSFET: DC = 300 V to 900 V, AC = 210 Vac to 480 Vac
(3) High power surface mount type package TO263-7L.
(4) This is a ranked product that guarantees a long-term supply for the industrial equipment market.
Electrical Specification
Input Conditions
Electrical Characteristics
Not guarantee the characteristics, is representative value. Unless otherwise noted: VIN = 600 V (DC), Io = 1.0 A, Ta = 25 °C
(Note 1) Adjust operating time, within any parts surface temperature under 105 °C
(Note 2) Not include spike noise
Parameter
Min
Typ
Max
Units
Conditions
Input Voltage Range (DC)
300
-
900
V
Input Voltage Range (AC)
210
-
480
Vac
Input AC Frequency
47
50 / 60
63
Hz
Operating Temperature Range
-10
+25
+65
°C
Parameter
Min
Typ
Max
Units
Conditions
Output Voltage
22.8
24.0
25.2
V
Maximum Output Power
-
-
48
W
Io = 2 A
Output Current Range (Note 1)
0.0
-
2.0
A
Stand-by Power
-
310
-
mW
Io = 0 A
Efficiency
-
91
-
%
Io = 2 A, VIN=300 V(DC)
Output Ripple Voltage (Note 2)
-
-
200
mVpp
Figure 1. BM2SC123FP2-EVK-001
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© 2021 ROHM Co., Ltd.
No. 64UG007E Rev.003
Jun. 2021
User’s Guide
BM2SC123FP2-EVK-001
Io
+24V
GND
V
VOUT
Io
+24V
GND
V
VOUT
- +
Operation Procedure
1. Operation Equipment
(1) 3 Phase AC Power supply 210 Vac to 480 Vac, or DC Power supply 300 Vdc to 900 Vdc. (80 W or more)
(2) Electronic Load capacity 2.0 A
(3) DC voltage meter
2. Connect method
(1) Turn off each power supply and connect the measuring instrument as shown below.
(2) Set the power supply within the usage range and turn on the power.
(3) If using electronic load, set it between 0 A to 2 A.
(4) Connect the output DC voltage meter directly to the output and measure the voltage by sensing.
(5) When removing the measuring instrument, set the input voltage to 0 V and check that the voltage of the input electrolytic
capacitors C8, 9, 10 are 10 V or less. After that, turn off the power of each measuring instrument and remove it.
(Note that you may get an electric shock if high voltage remains in the input capacitor.)
Input 210 Vac to 480 Vac
Input 300 Vdc to 900 Vdc
Output Current
Io = 0 to 2 A
Output Current
Io = 0 to 2 A
Figure 2. Input with 3-phase AC power supply
Figure 3. Inputting with DC power supply
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© 2021 ROHM Co., Ltd.
No. 64UG007E Rev.003
Jun. 2021
User’s Guide
BM2SC123FP2-EVK-001
100k
10uF
180uF 400V
180uF 400V
180uF 400V
30k
0.2A 400V
RRE02VSM4S
1.5KE200A
1.5KE200A
N.M.
RF2001T3D 350V/20A
2.2M
2.2M
BM2SC12xFP2
Application Circuit
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© 2021 ROHM Co., Ltd. No. 64UG007E Rev.003
Jun. 2021
User’s Guide
BM2SC123FP2-EVK-001
Specifications Parts name Manufacture
SCREW - SEMS-SCREW-P4-3X8 TOMOHO
CL C1,C2,C3,C4,C5 2200 pF, 300 V DE1E3RA222MJ4BP01F MURATA
CFL C6,C7 33 nF, 1600 V B32672L1333J TDK
CAL C8,C9,C10 180 µF, 400 V 860021381024 WURTH ELECTRONIK
CAP C11,C24 1000 pF, 100 V HMK107B7102KA-T TAIYO YUDEN
CAP C12 47 pF, 250 V GRM1885C2E470JW07 MURATA
CAP C13 10 µF, 50 V GRM31CD71H106KE11 MURATA
CAL C14 22 µF, 50 V UHD1H220MDD NICHICON
OTHER C15 - NON MOUNTED -
CL C16 2200 pF, 1000 V RDER73A222K2K1H03B MURATA
CAP C18 680 pF, 1000 V GRM31B5C2J681FW01L MURATA
CAL C19,C20 470 µF, 35 V EKZE350ELL471MJ20S UNITED CHEMI-CON
CAL C21 220 µF, 35 V UHD1V221MPD NICHICON
CAP C22 10 µF, 50 V GRM31CD71H106KE11 MURATA
CAP C23 0.1 µF, 100 V HMK107B7104MA-T TAIYO YUDEN
CN CN1 - 691250910003 WURTH ELECTRONIK
CN CN2 - 691250610003 WURTH ELECTRONIK
CN CN3 - 691101710002 WURTH ELECTRONIK
DI D1,D2,D10,D11,D12,D13,D14 1 A, 1200 V D1FK120 SHINDENGEN
ZD D3,D4 Zener Diode, 200 V 1.5KE200A LITTELFUSE
FRD D5,D6 FRD, 1 A, 1000 V UF4007 ON SEMICONDUCTOR
DI D7 0.1 A, 80 V 1SS355VM ROHM
DI D8 0.2 A, 400 V RRE02VSM4S ROHM
FRD D9 FRD, 20 A, 300 V RF2001T3DNZ ROHM
HS HS2 22.9 k/W IC-1625-STL SANKYO THRMOTECH
IC IC1 - BM2SC123FP2-LBZ ROHM
IC IC2 TL431BIDBZT TI
L L1,L2 1000 µH 768772102 WURTH ELECTRONIK
L L3 2.2 µH 7447462022 WURTH ELECTRONIK
PC PC1 - LTV-817M-B LITEON
RES R1,R2,R3 10 Ω PR02FS0201009KR500 VISHAY
RES R4,R5,R6,R7,R8,R9 470 kΩ MCR18EZPJ474 ROHM
RES R10,R11 1 MΩ KTR18EZPJ105 ROHM
RES R12,R13 470 kΩ KTR18EZPJ474 ROHM
RES R14 0.47 Ω LTR100JZPFLR470 ROHM
RES R15 100 kΩ KTR03EZFX1003 ROHM
RES R16,R20 10 Ω MCR25JZHJ100 ROHM
RES R17 12 kΩ MCR03EZPFX1202 ROHM
RES R18 10 Ω MCR18EZPJ100 ROHM
RES R19 220 kΩ PR03000202203JAC00 VISHAY
RES R21 82 kΩ MCR03EZPFX8202 ROHM
RES R22 4.7 kΩ MCR03EZPFX4701 ROHM
RES R23,R26 10 kΩ MCR03EZPFX1002 ROHM
RES R24 2.2 kΩ MCR03EZPFX2201 ROHM
RES R25 1 kΩ MCR03EZPFX1001 ROHM
RES R27 30 kΩ MCR03EZPJ303 ROHM
RES R28,R29 470 kΩ KTR18EZPJ225 ROHM
T T1 PQ3230 750344945 WURTH ELECTRONIK
Item
BOM LIST
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© 2021 ROHM Co., Ltd.
No. 64UG007E Rev.003
Jun. 2021
User’s Guide
BM2SC123FP2-EVK-001
BM2SC12xFP2 Overview
Feature
◼Long Time Support Product for Industrial Applications
◼TO263-7L Package
◼Built-in 1700 V/9.2 A/1.15 Ω SiC-MOSFET
◼Quasi-resonant Type
◼Frequency Reduction Function
◼Low Current Consumption (19 µA) during Standby
◼Burst Operation at Light Load
◼SOURCE Pin Leading Edge Blanking
◼VCC UVLO (Under Voltage Lockout protection)
◼VCC OVP (Over Voltage Protection)
◼Over Current Protection Circuit per Cycle
◼Soft Start Function
◼ZT Pin Trigger Mask Function
◼ZT OVP (Over Voltage Protection)
◼BR UVLO (Under Voltage Lockout Protection)
Key specifications
◼Operating Power Supply Voltage Range:
VCC: 15.0 V to 27.5 V
DRAIN: 1700 V (Max)
◼Normal Operating Current: 800 µA (Typ)
◼Burst Operating Current: 500 µA (Typ)
◼Maximum Operating Frequency: 120 kHz (Typ)
◼Operating Temperature: -40 °C to +105 °C
Table 1. Series Line-up
Product name
FB OLP
VCC OVP
BM2SCQ121FP2-LBZ
Auto Restart
Latch
BM2SCQ122FP2-LBZ
Latch
Latch
BM2SCQ123FP2-LBZ
Auto Restart
Auto Restart
BM2SCQ124FP2-LBZ
Latch
Auto Restart
Application
Power supply for Industrial Equipment, AC Adaptor, Household
Application
Package W (Typ) x D (Typ) x H (Max)
TO263-7L 10.18 mm x 15.5 mm x 4.56 mm
Table 2. BM2SC123FP2 PIN description
No.
Name
Function
1
ZT
Zero current detection pin
2
VCC
Power supply input pin
3
GND
GND pin
4
FB
Feedback signal input pin
5
BR
AC voltage detect pin
6
SOURCE
MOSFET SOURCE pin
7
SOURCE
MOSFET SOURCE pin
EXP-PAD
DRAIN
MOSFET DRAIN pin
Figure 4. Pin Configuration
1
GND SOURCE
3 4 5 6 7
FB
ZT VCC SOURCE
2
BR
EXP-PAD
DRAIN
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© 2021 ROHM Co., Ltd.
No. 64UG007E Rev.003
Jun. 2021
User’s Guide
BM2SC123FP2-EVK-001
Transformer Specification
Transformer design example
Table 3. Core and Bobbin Information
Item
Material
Core
TP4A
Bobbin
PQ3230 WH9100
Table 4. Winding Specification
Pin
Turn No.
Wire diagram
3=>1 pin
88T
AWG25
11=>9 pin, 12=>8 pin
20T
4 x AWG24
4 pin=>5 pin
18T
AWG32
Figure 5. Transformer Specification
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© 2021 ROHM Co., Ltd.
No. 64UG007E Rev.003
Jun. 2021
User’s Guide
BM2SC123FP2-EVK-001
Performance Data
Figure 8. Input Voltage vs Output Voltage
Figure 9. Input Voltage Vin vs Frequency (Io = 2 A)
23.5
24
24.5
300 400 500 600 700 800 900
Output Voltage Vo (V)
Input Voltage Vin (Vdc)
Vo - Vin IOUT=0
IOUT=2A
Figure 6. Output Voltage vs Output Current –
Figure 7. Output Current vs Efficiency
23.5
23.7
23.9
24.1
24.3
24.5
0 0.5 1 1.5 2 2.5 3 3.5
Output Voltage Vo (V)
Outout Current Io (A)
Vo - Io 300Vdc
900Vdc
40.0%
50.0%
60.0%
70.0%
80.0%
90.0%
100.0%
0 0.5 1 1.5 2
Efficiency η (%)
Output Current Io (A)
Io-Efficiency
VIN=300 Vdc
VIN=900 Vdc
30
40
50
60
300 400 500 600 700 800 900
Frequency Fsw [kHz)
Input Voltage Vin (Vdc)
Vin - Fsw
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© 2021 ROHM Co., Ltd.
No. 64UG007E Rev.003
Jun. 2021
User’s Guide
BM2SC123FP2-EVK-001
Performance Data – Continued
Figure 10. Vin_dc = 300 V, Io = 0.5 A
Primary Side
Figure 11. Vin_dc = 900 V, Io = 0.5 A
Primary Side
V_Drain 100 V/div
I_FET 1 A/div
Secondary diode Vak 50 V/div
I_Diode 2 A/div
V_Drain 250 V/div
I_FET 1 A/div
Secondary diode Vak 50 V/div
I_Diode 2 A/div
Figure 12. Vin_dc = 300 V, Io = 0.5 A
Secondary Side
Figure 13. Vin_dc = 900 V, Io = 0.5 A
Secondary Side
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