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                                                                                                                                                              HVA01E 

© 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  BD7J200EFJ-LB  evaluation  board 

(BD7J200EFJ-EVK-002) 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. 
 

Summary of Contents for BD7J200EFJ-EVK-002

Page 1: ...Switching Regulator Series Isolated Flyback DC DC Converter BD7J200EFJ LB EVK BD7J200EFJ EVK 002 48V 12V 1A...

Page 2: ...tal 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 th...

Page 3: ...t current rating of maximum 1A Performance specification These are representative values and it is not a guaranteed against the characteristics VIN 48V VOUT 12V unless otherwise specified Parameter Mi...

Page 4: ...and turn off 2 Set the load less than 1A and disable 3 Connect the power supply to VIN and GND pins with a pair of wire 4 Connect the load to VOUT and VOUT pins with a pair of wire 5 Connect the voltm...

Page 5: ...GRT32EC81C476KE13L MURATA C9 Notinstalled C10 Notinstalled C11 100pF Capacitor Chip 250V C0G 2012 GRM21A5C2E101JW01 MURATA D1 1A 90V Diode Schottky 3516 RB160MM 90 ROHM D2 Vz 36 0 Diode Zener Vz 36 0...

Page 6: ...terial Board Size 4 FR 4 70mm x 50mm x 1 6mmt The following are layers of the BD7J200EFJ EVK 002 Figure 5 Top silk screen layout Top View Figure 6 Bottom silk screen layout Top View Figure 7 Top Layer...

Page 7: ...5 7 User s Guide BD7J200EFJ EVK 002 2021 ROHM Co Ltd No 63UG030E Rev 001 SEP 2021 Reference Application Data Figure 11 Power Conversion Efficiency vs Output Current Figure 12 Load Regulation...

Page 8: ...Ltd No 63UG030E Rev 001 SEP 2021 C11 mounting method There is no land pattern for C11 Figure 13 Top land pattern Top View C11 mounting position C11 is mounted on the lead terminals of U1_6pin PGND an...

Page 9: ...7 7 User s Guide BD7J200EFJ EVK 002 2021 ROHM Co Ltd No 63UG030E Rev 001 SEP 2021 Revision History Date Revision Number Description 9 Sep 2021 001 Initial release...

Page 10: ...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...

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