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Switching Regulator Series
Isolated Flyback DC/DC Converter
BD7F200HFN-LB Evaluation Board
BD7F200HFN-EVK-001 (24V→15V, 0.15A×4ch)
BD7F200HFN-EVK-001 Evaluation board delivers four outputs 15 volts from an input 24 volts using BD7F200HFN-LB, Isolated Flyback DC/DC
converter integrated circuit, with output current rating of maximum 0.15A.
Performance specification
These are representative values, and it is not a guaranteed against the characteristics.
V
= 24V, V
= V
IN
OUT1
OUT2
Parameter
Input Voltage
Output Voltages 1 to 4
Output Currents Range 1 to 4
Operating Frequency
Maximum Efficiency
Evaluation Board
PCB size: 90mm×70mm×1.6mm
Figure 1. BD7F200HFN-EVK-001 Evaluation Board
Top View
© 2018 ROHM Co., Ltd.
= V
= V
=15V, Unless otherwise specified.
OUT3
OUT4
Min
20
24V→15V,0.15A×4CH
Typ
Max
Units
24.0
V
15.0
V
150
mA
400
kHz
83.6
%
PCB0134
S/N 001
Figure 2. BD7F200HFN-EVK-001 Evaluation Board
1/6
User's Guide
Conditions
R4=3.9kΩ, R5=78.7kΩ
Maximum Output Power：10W
I
= 150mA
OUT1 to 4
Bottom View
No. 61UG015E Rev.002
NOV.2018
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Table of Contents
Related Manuals for Rohm BD7F200HFN-LB
Summary of Contents for Rohm BD7F200HFN-LB
- Page 1 Isolated Flyback DC/DC Converter BD7F200HFN-LB Evaluation Board BD7F200HFN-EVK-001 (24V→15V, 0.15A×4ch) BD7F200HFN-EVK-001 Evaluation board delivers four outputs 15 volts from an input 24 volts using BD7F200HFN-LB, Isolated Flyback DC/DC converter integrated circuit, with output current rating of maximum 0.15A. Performance specification These are representative values, and it is not a guaranteed against the characteristics.
-
Page 2: Operation Procedures
Load 1 VOUT-1 VOUT+2 DC Power Load 2 VOUT-2 VOUT+3 Load 3 VOUT-3 VOUT+4 Load 4 VOUT-4 24V→15V,0.15A×4CH VOUT+4 VOUT+3 DC Voltmeter 5 DC Voltmeter 4 VOUT-4 VOUT-3 Figure 3. Connection Diagram © 2018 ROHM Co., Ltd. No. 61UG015E Rev.002 NOV.2018... -
Page 3: Circuit Diagram
BD7F200HFN-EVK-001 User’s Guide Circuit Diagram = 24V, = 15V OUT1 OUT2 OUT3 OUT4 SDX/EN VOUT+1 VOUT-1 VOUT+2 VOUT-2 VOUT+3 AGND SDX/EN COMP PGND VOUT-3 VOUT+4 VOUT-4 Figure 4. BD7F200HFN-EVK-001 Circuit Diagram © 2018 ROHM Co., Ltd. No. 61UG015E Rev.002 NOV.2018... -
Page 4: Bill Of Materials
Resistor, Chip, 1/10W, 1% 1608 MCR03EZPFX3301 ROHM R10 3.3kΩ Resistor, Chip, 1/10W, 1% 1608 MCR03EZPFX3301 ROHM Transformer, Lp=27μH±20% EFD2014 27μH 22.5 x 24.0 x 14.8mm sumida Np:Ns1:Ns2:Ns3:Ns4=1:1:1:1:1 13307-T070 BD7F200HFN I.C. BD7F200HFN HSON8 BD7F200HFN ROHM © 2018 ROHM Co., Ltd. No. 61UG015E Rev.002 NOV.2018... - Page 5 (Top View) Figure 7. Top Side Layout Figure 8. Middle Layer1 Layout (Top View) (Top View) Figure 9. Middle Layer2 Layout Figure 10. Bottom Side Layer Layout (Top View) (Top View) © 2018 ROHM Co., Ltd. No. 61UG015E Rev.002 NOV.2018...
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Page 6: Reference Application Data
OUT3 OUT4 0.00 0.05 0.10 0.15 Figure 11. Efficiency vs Load Current 16.5 16.0 15.5 15.0 14.5 VOUT1 VOUT2 VOUT3 14.0 VOUT4 13.5 0.00 0.05 0.10 0.15 Figure 12. Load Regulation © 2018 ROHM Co., Ltd. No. 61UG015E Rev.002 NOV.2018... - Page 7 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.
- Page 8 [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.
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