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2009.05 - Rev.A

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Power Management Switch IC Series for PCs and Digital Consumer Product

2ch Small Current Output

USB High Side Switch ICs

BD2046AFJ, BD2056AFJ



Description

High side switch for USB is a high side switch having over current protection used in power supply line of universal serial bus

(USB). Its switch unit has two channels of N-channel power MOSFET. And, over current detection circuit, thermal shutdown

circuit, under voltage lockout and soft start circuit are built in.



Features

1) Dual N-MOS high side switch

2) Continuous current load 0.25A

3) Control input logic

Active-Low : BD2046AFJ

Active-High : BD2056AFJ

4) Soft start circuit

5) Over current detection

6) Thermal shutdown

7) Under voltage lockout

8) Open drain error flag output

9) Reverse-current protection when switch off

10) Flag output delay filter built in



Applications

USB hub in consumer appliances, Car accessory, PC, PC peripheral equipment, and so forth



Lineup

Parameter

BD2046AFJ

BD2056AFJ

Continuous current load (A)

0.25

0.25

Over current detection (A)

0.5

0.5

Control input logic

Low

High



Absolute Maximum Ratings

Parameter

Symbol

Limits

Unit

Supply voltage

-0.3 to 6.0

V

Enable voltage

-0.3 to 6.0

V

/OC voltage

-0.3 to 6.0

V

/OC current

10

mA

OUT voltage

-0.3 to 6.0

V

Storage temperature

-55 to 150

°C

Power dissipation

Pd

560

*1

mW

*1

In the case of exceeding Ta = 25°C, 4.48mW should be reduced per 1°C.

*

This chip is not designed to protect itself against radioactive rays.



Operating conditions

Parameter

Symbol

Limits

Unit

Operating voltage

2.7 to 5.5

V

Operating temperature

-40 to 85

°C

Continuous output current

0 to 250

mA

No.09029JAT05