Datasheet > BD2045AFJ_11

BD2045AFJ_11

更新时间： 2024-11-28 08:51:15

品牌	Logo	应用领域
罗姆 - ROHM		存储开关
页数	文件大小	规格书
13页	324K
描述
1ch High Side Switch ICs for USB Devices and Memory Cards

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数据手册

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BD2045AFJ_11 数据手册

Power Management Switch ICs for PCs and Digital Consumer Products

1ch High Side Switch ICs

for USB Devices and Memory Cards

No.11029ECT04

BD2045AFJ, BD2055AFJ

●Description

Single channel high side switch IC for USB port is a high side switch having over current protection used in power supply line

of universal serial bus (USB).

N-channel power MOSFET of low on resistance and low supply current are realized in this IC.

And, over current detection circuit, thermal shutdown circuit, under voltage lockout and soft start circuit are built in.

●Features

1) Low on resistance 80mΩ Nch MOSFET Switch.

2) Continuous current load 0.25A

3) Control input logic

Active-Low : BD2045AFJ

Active-High : BD2055AFJ

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 power switch off

10) Power supply voltage range 2.7V to 5.5V

11) TTL Enable input

12) 1.2ms typical rise time

13) 10μA max standby current

14) Operating temperature range -40°C to 85°C

●Applications

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

●Lineup

Parameter

BD2045AFJ

BD2055AFJ

Continuous current load (A)

Output current at short (A)

Control input logic

0.25

0.5

0.25

0.5

Low

High

●Absolute Maximum Ratings

Parameter

Symbol

Ratings

Unit

Supply voltage

Enable voltage

/OC voltage

VIN

VEN, V/EN

V/OC

-0.3 to 6.0

/OC current

IS/OC

VOUT

TSTG

OUT voltage

-0.3 to 6.0

-55 to 150

560^*1

Storage temperature

°C

Power dissipation

*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.

www.rohm.com

2011.06 - Rev.C

1/12

12 3 4 5 6 7...13

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