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© 2017 ROHM Co., Ltd.

 

No. 60AP001E Rev.001

 

2017.4

 

© 2017 ROHM Co., Ltd.

 

No. 60UG032E Rev.002

 

NOV.2018

 

User

’s  Guide 

Switching Regulator Series 

Isolated Flyback DC/DC Converter 
BD7F100HFN-LB Evaluation Board 

BD7F100HFN-EVK-002 (24V

→5V, 1A) 

BD7F100HFN-EVK-002  Evaluation  board  delivers  an  output  5  volts  from  an  input  24  volts  using  BD7F100HFN-LB,  Isolated  Flyback  DC/DC 

converter integrated circuit, with output current rating of maximum 1A. 

 

Performance specification 

These are representative values, and it is not a guaranteed against the characteristics. 

V

IN

 = 24V, V

OUT

 = 5V, Unless otherwise specified.   

Parameter 

Min 

Typ 

Max 

Units 

Conditions 

Input Voltage 

 

24.0 

 

 

Output Voltage 

 

5.0 

 

R4=3.9kΩ, R5=80.6kΩ 

Output Current Range 

13.8 

 

1000 

mA 

Maximum

 

Output Power

5W 

Operating Frequency 

 

400 

 

kHz 

 

Maximum Efficiency 

 

77.5 

 

I

O

 = 1000mA 

 

Evaluation Board 

PCB size: 70mm×50mm×1.6mm 

 

 

 

 

 

 

 

 

Figure 1. BD7F100HFN-EVK-002 Evaluation Board

   

 

       

Figure 2. BD7F100HFN-EVK-002 Evaluation Board 

 

     

 

            Top View 

                           

  

         

     

 

  Bottom View 

 

 

Summary of Contents for BD7F100HFN-LB

Page 1: ...urrent rating of maximum 1A Performance specification These are representative values and it is not a guaranteed against the characteristics VIN 24V VOUT 5V Unless otherwise specified Parameter Min Ty...

Page 2: ...supply to VIN terminal and negative terminal to GND terminal with a pair of wires 4 Connect load s positive terminal to VOUT terminal and negative terminal to VOUT terminal with a pair of wires 5 Conn...

Page 3: ...pacitor Chip 50V CH 1608 GRM1882C1H102JA01 MURATA C6 Notinstalled C7 47 F Capacitor Chip 10V X7R 3225 GRM32ER71A476KE15 MURATA C8 Notinstalled D1 RB160MM 40 Diode Schottky 3516 RB160MM 40 ROHM D2 TFZ2...

Page 4: ...002 NOV 2018 Layout Figure 5 Top Silk Screen and Layout Figure 6 Bottom Silk Screen and Layout Top View Top View Figure 7 Top Side Layout Figure 8 Middle Layer1 Layout Top View Top View Figure 9 Middl...

Page 5: ...2 NOV 2018 Reference Application Data VIN 24V VOUT 5V Figure 11 Efficiency vs Load Current Figure 12 Load Regulation 0 10 20 30 40 50 60 70 80 90 0 0 0 2 0 4 0 6 0 8 1 0 Efficiency IOUT A 4 5 4 6 4 7...

Page 6: ...hnical 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...

Page 7: ...nd 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 abo...

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