Technical Note

9/16

BD2062FJ,BD2066FJ

www.rohm.com

2011.05 - Rev.B

© 2011 ROHM Co., Ltd. All rights reserved.

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Block Diagram

Gate

Logic1

OCD1

Charge

Pump1

TSD1

UVLO

Charge

Pump2

OCD2

Gate

Logic2

TSD2

/EN1

EN1

IN

/EN2

EN2

GND

/OC1

OUT1

OUT2

/OC2

Delay

Delay

1

2

8

7

GND

IN

/OC1

OUT1

3

/EN1

(EN1)

4

6

5

OUT2

/OC2

Top View

/EN2

(EN2)

Fig.38 Block diagram

Fig.39 Pin configuration

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Pin Description

○

BD2062FJ

Pin No.

Symbol

I / O

Pin function

1

GND

-

Ground.

2

IN

-

Power supply input.

Input terminal to the switch and power supply input terminal of the

internal circuit.

3, 4

/EN

I

Enable input.

Switch on at Low level.

High level input > 2.0V, Low level input < 0.8V.

5, 8

/OC

O

Error flag output.

Low at over-current, thermal shutdown.

Open drain output.

6, 7

OUT

O

Switch output.

○

BD2066FJ

Pin No.

Symbol

I / O

Pin function

1

GND

-

Ground.

2

IN

-

Power supply input.

Input terminal to the switch and power supply input terminal of the

internal circuit.

3, 4

EN

I

Enable input.

Switch on at High level.

High level input > 2.0V, Low level input < 0.8V

5, 8

/OC

O

Error flag output.

Low at over-current, thermal shutdown.

Open drain output.

6, 7

OUT

O

Switch output.