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© 2016 ROHM Co.,Ltd.

BD7682FJ-LB

Evaluation Board-24V1A 24W-

PCB4046 Rev. A

Rohm Co., Ltd

Application Engineering Div.

06, Apr. , 2016

P. 1© 2016 ROHM Co.,Ltd.

1. Schematic

P. 2© 2016 ROHM Co.,Ltd.

2. Placement

[Three Phase AC Input]

[OUTPUT]

24V 1A=24W

[Input Filter]

[DC Input]

+ -

+-

SiC-MOSFET

P. 3© 2016 ROHM Co.,Ltd.

3. Placement

BD7682FJ-LB [Three Phase AC Input]

[OUTPUT]

24V 1A=24W

[DC Input]

+ -

+-

P. 4© 2016 ROHM Co.,Ltd.

4. Evaluation data

DC300V DC600V DC900V

This data is using DCIN

Tested one hour after switch on. ( Thermister hot situation )

Using ACIN input low voltage situation, Efficiency little bit low down.

Please see next page.

P. 5© 2016 ROHM Co.,Ltd.

5. Efficiency Data From each Input Terminal

P. 6© 2016 ROHM Co.,Ltd.

6. Efficiency Data From each Input Terminal

DCIN

ACIN

DC from DCIN

DC from ACIN

AC from ACIN

This board has two input terminal. DCIN and ACIN.

Efficiency depend on input terminal.

Because of input impedance not same.

DC300V/AC220V

Output Current (A)

P. 7© 2016 ROHM Co.,Ltd.

7. Parts List

P. 8© 2016 ROHM Co.,Ltd.

DC300V DC600V DC900V

0.5A

1A

8. Operation Wave form

© 2016 ROHM Co.,Ltd.