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APX803-26SRG-7 Datasheet(PDF) 1 Page - Diodes Incorporated

Part No. APX803-26SRG-7
Description  3-PIN MICROPROCESSOR RESET CIRCUIT
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Maker  DIODES [Diodes Incorporated]
Homepage  http://www.diodes.com
Logo DIODES - Diodes Incorporated

APX803-26SRG-7 Datasheet(HTML) 1 Page - Diodes Incorporated

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APX803
3-PIN MICROPROCESSOR RESET CIRCUIT
APX803
1 of 10
MARCH 2010
Document number: DS32132 Rev. 1 – 2
www.diodes.com
© Diodes Incorporated
Precision Monitoring of +2.5V, +3V, +3.3V, and +5V
Power-Supply Voltages
Fully Specified Over Temperature
Available in three Output Configurations
Open-drain
RESET Active Low
200ms Typ Power-On Reset Pulse Width
30µA Supply Current (Typ.)
Guaranteed Reset Valid to VCC = +1V
No External Components
SOT23 and SOT23R: Available in “Green” Molding
Compound (No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
The APX803 is used for microprocessor (µP) supervisory circuits
to monitor the power supplies in µP and digital systems. They
provide excellent circuit reliability and low cost by eliminating
external components and adjustments when used with +5V,
+3.3V, +3.0V powered circuits.
These circuits perform a single function: they assert a reset
signal on power up and whenever the VCC supply voltage
declines below a preset threshold, keeping it asserted for at least
140ms after VCC has risen above the reset threshold. Reset
thresholds suitable for operation with a variety of supply voltages
are available. The APX803 have an open collector active low
RESET output. The reset comparator is designed to ignore
fast transients on VCC, and the outputs are guaranteed to be in
the correct logic state for VCC down to 1V. Low supply current
makes the APX803 ideal for use in portable equipment. The
APX803 is available in two pin out variants of the 3-pin SOT23
and SOT23R packages.
Computers
Controllers
Intelligent Instruments
Critical µP and µC Power Monitoring
Portable/Battery Powered Equipment
APX803
GND
RESET
Vcc
Microprocessor
Vcc
GND
RESET
INPUT
Vcc
CIN
100nF
Features
General Description
Applications
Typical Application Circuit


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