ACE345 datasheet(1/8 Pages) ACE

部品番号	ACE345

部品情報	Adjustable USB Load Current Switch

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メーカー	ACE [ACE Technology Co., LTD.]

ホームページ	http://www.ace-ele.com

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ACE345

Adjustable USB Load Current Switch

VER 1.2

1

Description

The ACE345 is Adjustable USB Load Current Switch Current Limited designed for high-side load

switching applications. The internal current-limiting circuit protects the input supply against large output

short circuit current which may cause the supply to fall out of regulation.

The current limit threshold is programmed with an external resistor from ISET Pin to ground. The

quiescent supply current is typically 150

μA, making the device ideal for portable battery-operated

equipment. In shutdown mode, the supply current decreases to less than 0.1μA.

Additional features include thermal shutdown and constant current output characteristics if current

exceed its current limit

Features

 2.5 to 5.5V input voltage range

 Controlled turn-on

 0.15-1.5A adjustable current limit

 +/-6% current limit accuracy

 0.1ohm on resistance

 Fast current limit response time

 Logic Control Shutdown (IQ<1uA)

 Thermal shutdown and UVLO

 Reverse current blocking

Application

 Portable Devices

 MID, MP4…

 Set top boxes

 Notebook and PC mother board

 USB supplied Devices

Absolute Maximum Ratings

Parameter

Max

Unit

Max Input Voltage

6

V

Max Operating Junction Temperature(TJ)

125

℃

Ambient Temperature(TA)

-40~85

℃

Maximum Power Dissipation

250

mW

Storage Temperature(TS)

-40~150 ℃

ESD (HBM)

>4000

V

Note: Exceed these limits to damage to the device. Exposure to absolute maximum rating conditions may affect device reliability.

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