ADM869L

更新时间： 2024-09-22 22:53:35

品牌	Logo	应用领域
亚德诺 - ADI		开关
页数	文件大小	规格书
8页	125K
描述
2 A, High-Side P-Channel Switch with Current Limit and Thermal Shutdown

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数据手册

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ADM869L 数据手册

2 A, High-Side P-Channel Switch with

Current Limit and Thermal Shutdown

ADM869L

FEATURES

GENERAL DESCRIPTION

2 A Load Current

45 m⍀ On Resistance

The ADM869L is a logic controlled P-channel switch with low

on resistance, capable of sourcing up to 2 A from supply voltages

between 2.7 V and 5.5 V. A user-settable current limit allows

the trip current to be set between 400 mA and 2 A with an

accuracy of 21%. This allows the system power supply to be

protected against short circuits and surge currents in peripheral

loads powered via the ADM869L. Over-current and over-

temperature conditions are signalled by a FAULT output.

User-Settable Current Limit

12 ␮A Typical Quiescent Current

10 nA Typical Shutdown Current

40 nA Typical Switch Off Leakage

Short-Circuit Protection

Thermal Shutdown

FAULT Output

Small, 16-Lead QSOP Package

The ADM869L also offers low quiescent current of typically

12 µA and shutdown current of typically 10 nA.

APPLICATIONS

Desktop Computers

Palmtop Computers

Notebook Computers

Hand-Held Instruments

Universal Serial Bus (USB)

FUNCTIONAL BLOCK DIAGRAM

MAIN FET

OUT

(2.7V TO 5.5V)

MIRROR

AMPLIFIER

MIRROR FET

22␮F

0.1␮F

SET

PULLUP

CURRENT

LIMIT

0 TO 5.5V

AMPLIFIER

ADM869L

1.24V

BANDGAP

REFERENCE

PULLUP

SET

10k⍀ TO 100k⍀

FAULT

TEMPERATURE

SENSOR AND

CONTROL

GND

OVERTEMP

CIRCUITRY

REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

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