BD6538G

Technical Note

7/11

www.rohm.com

2011.05 - Rev.B

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

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Block diagram

Delay

Counter

S

R

Q

TSD

Charge

pump

UVLO

OCD

GND

EN

VIN

/OC

OUT

VIN

GND

EN

1

2

34

5

/OC

VOUT

Top View

Fig.36 Block diagram

Fig.37 Pin Configuration

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Pin description

Pin No.

symbol

I/O

Pin function

1

VIN

-

Power supply input.

Input terminal to switch and power supply input terminal of the internal circuit.

2

GND

-

Ground.

3

EN

I

Enable input.

Power switch on at High level.

4

/OC

O

Over current output. Low level at over current detection.

Open drain output.

5

VOUT

O

Switch output.

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Terminal circuit

symbol

Pin No.

Equivalent circuit

EN

3

EN

VOUT

5

VOUT

/OC

4

/OC

Fig.38 Terminal circuit