AIC811 Datasheet, PDF (1/8 Pages) Analog Intergrations Corporation – Reset Circuits with Manual Reset Input

AIC811/AIC812
Reset Circuits with Manual Reset Input
FEATURES
Ultra Low Supply Current 1µA(typ.)
Guaranteed Reset Valid to Vcc=0.9V
Available in two Output Types: Push-Pull Active
Low (AIC811), Push-Pull Active High (AIC812)
140ms Min. Power-On Reset Pulse Width
Internally Fixed Threshold 2.3V, 2.6V, 2.9V,
3.1V, 4.0V, 4.4V, and 4.6V
Tight Voltage Threshold Tolerance: 1.5%
Low profile Package: SOT-23-5
APPLICATIONS
Notebook Computers
Digital Still Cameras
PDAs
Critical Microprocessor Monitoring
DESCRIPTION
AIC811/AIC812 are low-power microprocessor (µP)
supervisory circuits used to monitor power supplies in
µP and digital systems. They provide applications with
benefits of circuit reliability and low cost by eliminating
external components. AIC811/AIC812 also offer a
manual reset input.
These devices perform as valid singles in applications
with Vcc ranging from 6.0V down to 0.9V. The reset
signal lasts for a minimum period of 140ms whenever
VCC supply voltage falls below preset threshold. Both
AIC811 and AIC812 were designed with a reset
comparator to help identify invalid signals, which last
less than 140ms. The only difference between them is
that they have an active-low RESET output and
active-high RESET output, respectively.
Low supply current (1µA) makes AIC811/AIC812 ideal
for portable equipment. The devices are available in
SOT-23-5 package.
TYPICAL APPLICATION CIRCUIT
V_CC
VCC
AIC811
(AIC812)
RESET
MR ^(RESET)
GND
VCC
µP
RESET
INPUT
GND
Pushbutton
Switch
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C.
TEL: [phone]
FAX: [phone] www.analog.com.tw
DS-811P-03 010405
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