Datasheet > MIC803-44D4VM3TR

MIC803-44D4VM3TR

更新时间： 2024-11-11 15:42:59

品牌	Logo	应用领域
美国微芯 - MICROCHIP		光电二极管
页数	文件大小	规格书
10页	252K
描述
IC,VOLT DETECTOR,FIXED,+4.38V,TO-236,3PIN,PLASTIC

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数据手册

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MIC803-44D4VM3TR 数据手册

MIC803

3-Pin Microprocessor Supervisor Circuit

with Open-Drain Reset Output

General Description

Features

• 4.5μA supply current (typical) at 3.6V

• Open-Drain /RESET output

The MIC803 is a single-voltage supervisor with open-drain

reset output that provides accurate power supply

monitoring and reset generation in microprocessor based

systems. The function of the device is to assert a reset

signal if the power supply voltage drops below the Reset

Threshold voltage, and retain this reset for the Reset

Timeout Period once the power supply increases above

the Reset Threshold voltage.

• /RESET remains valid with V_CCas low as 1V

• 20ms, 140ms, or 1120ms (min) reset timeout Options

• 2.63V to 4.63V Preset Voltage Threshold Options

• 2.5% Voltage Threshold Accuracy over temperature

• 3-pin SC70-3 package (2.0mm x 2.1mm)

• 3-pin SOT-23 package (2.3mm x 2.9mm)

• -40˚C to +125˚C Junction Temperature Range

The MIC803 consumes only 4.5μA of supply current and

offers three reset delay periods of 20ms, 140ms and

1120ms (min). It features factory programmed reset

threshold levels from 2.63V to 4.63V to accommodate

3.0V, 3.3V, and 5.0V power supplies. It is available in the

compact 3-pin SC-70 and SOT-23 packages.

Applications

• Critical microcomputer power monitoring

• Portable equipment

• Solid state drives

• Printers/computers

• Embedded controllers

____________________________________________________________________________________________________________

Typical Application

V_CC

100k

MIC803

µP

RESET

GND

RESET

GND

Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-122310-A

December 2010

12 3 4 5 6 7...10

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