ACE809 datasheet(1/6 Pages) ACE

номер детали	ACE809

подробное описание детали	3-Pin Microprocessor Reset Circuits

PDF	6 Pages

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производитель	ACE [ACE Technology Co., LTD.]

домашняя страница	http://www.ace-ele.com

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ACE809

Technology

3-Pin Microprocessor Reset Circuits

VER 1.2

1

Description

The ACE809 microprocessor supervisory circuits can be used to monitor the power supplies in

microprocessor and digital systems. They provide s reset to the microprocessor during power-up,

power-down and brown-out conditions.

The function of the ACE809 is to monitor the VCC supply voltage, and assert a reset signal whenever this

voltage declines below the factory-programmed reset threshold. The reset signal remains asserted for

240ms after VCC rises above the threshold. The ACE809 has an active-low RESET output. The output of

the ACE809 is guaranteed valid down to VCC =1V. The device is available in a SOT-23-3L package.

The ACE809 is optimized to reject fast transient glitches on the VCC line. Low supply current of 25µA,

(VCC=3.3V) makes these devices suitable for battery powered applications.

Features

• Precision Vcc Monitor for 3.0V,3.3V and 5.0V Supplies

• 140ms Guaranteed Minimum RESET Output Duration

• RESET Output Guaranteed to Vcc=1.0V

• Low 25μA Supply Current.

• Vcc Transient Immunity.

• No External Components.

Application

• Embedded systems

• Computers

• Critical μP Power Supply Monitoring

• Battery Powered equipment

Absolute Maximum Ratings

Parameter

Symbol

Max

Unit

Supply Voltage

VCC

5.5

V

Output Voltage

RESET -0.3 to (Vcc+0.3) V

Input Current

20

mA

Output Current

IOUT

20

mA

Power Dissipation

PD

Internally Limited

Thermal resistance junction to ambient

SOT-23-3

θJA

230

℃

/W

Operating junction temperature range

TJ

0 to 125

℃

Storage temperature range

TSTG

-60 to 150

℃

Note 1: Exceeding these rating could cause damage to the device. All voltages are with respect to Ground. Currents are positive

into, negative out of the specified terminal.

Note 2: Voltage values are with respect to the anode terminal unless otherwise noted.

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