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Notice  

 

www.rohm.com

                                                                               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 BD83A14EFV-M evaluation board (REFLED004-

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. 

 

Содержание BD83A14EFV-M

Страница 1: ...BD83A14EFV M Evaluation Board REFLED004 EVK 001...

Страница 2: ...al 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...

Страница 3: ...combining with PWM dimming DC DC converters can be controlled for boost applications and the input operating voltage range is 4 5 V to 48V Application Automotive backlight application for CID cluster...

Страница 4: ...or LEDs to evaluation board Anode to VOUT pin Cathode to LEDx pin 2 Connect power supply to B pin and B pin of the evaluation board 3 Connect power supply to EN pin It must be less than 7V 4 Connect p...

Страница 5: ...For unused channels pull down the LED pin to GND with 10k The ISET terminal voltage can be adjusted according to the voltage input to the ADIM_P terminal The LED current can be calculated from the fol...

Страница 6: ...4 10 2022 ROHM Co Ltd 65UG067E Rev 001 Dec 2022 User s Guide BD83A14EFV M 001 Pin configuration Figure 6 Pin configuration...

Страница 7: ...5 10 2022 ROHM Co Ltd 65UG067E Rev 001 Dec 2022 User s Guide BD83A14EFV M 001 Evaluation board schematic Figure 7 Evaluation board schematic...

Страница 8: ...series Resistor Rohm RRT2 1608 12k MCR03 series Resistor Rohm RFAIL 1608 100k MCR03 series Resistor Rohm CREG 2012 2 2 F 16V GCM21BR71C205KA49 Ceramic Murata CREG2 Open M1 HSMT8AG 40V 27A RQ3G270BJFR...

Страница 9: ...7 Ceramic Murata XLED1 1005 470pF X7S 50V GCM1555C1H471JA16 Ceramic Murata XLED2 1005 470pF X7S 50V GCM1555C1H471JA16 Ceramic Murata XLED3 1005 470pF X7S 50V GCM1555C1H471JA16 Ceramic Murata XLED4 100...

Страница 10: ...1 6mm Copper thickness 1 oz Number of layers 4 Board size 90X60mm Minimum copper width 0 15mm Minimum air gap 0 15mm Minimum hole size 0 3mm The layout of BD83A14EFV M is shown below Top view Top view...

Страница 11: ...data Ta 25 C Output voltage 34V Iout 120mA x 4ch Figure 12 Efficiency vs Input voltage Figure 13 Gain Phase vs Frequency VCC 12V Efficiency Input voltage V 70 75 80 85 90 95 100 5 10 15 20 180 120 60...

Страница 12: ...10 10 2022 ROHM Co Ltd 65UG067E Rev 001 Dec 2022 User s Guide BD83A14EFV M 001 Revision history Date Revision number Description 06 Dec 2021 001 Initial release...

Страница 13: ...ch technical 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...

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