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Advanced Analogic Technologies - MicroPower Supervisory Circuit with Manual Reset

Numéro de référence AAT3527ICX-293-200-T1
Description MicroPower Supervisory Circuit with Manual Reset
Fabricant Advanced Analogic Technologies 
Logo Advanced Analogic Technologies 





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AAT3527ICX-293-200-T1 fiche technique
AAT3526/7/8
MicroPower Supervisory Circuit with Manual Reset
General Description
The AAT3526/7/8 PowerManager™ products are
members of AATI's Total Power Management IC™
(TPMIC™) product family. These microprocessor
reset circuits are ideal for monitoring voltage sup-
plies in portable systems, where extended battery
life is critical. They provide a low cost, reliable solu-
tion by eliminating external components. The
AAT3526/7/8 products operate by monitoring the
system power supply voltage. When the input volt-
age drops below a fixed threshold, the device
asserts a reset signal for a minimum of 150ms after
VCC has risen back above the fixed threshold. They
are guaranteed to operate down to 1.2V and
designed to ignore fast line transients appearing on
VCC. The AAT3526/7/8 series is available with three
output stage versions: AAT3526 push-pull active
low output, AAT3527 push-pull active high output
and AAT3528 open drain active low output. The
quiescent supply current is extremely low, typically
1µA, making this device ideal for portable battery
operated equipment.
The AAT3526/7/8 are available in a 4 pin SOT143
package and are specified over -40° to 85°C oper-
ating temperature range.
Features
PowerManager
• 1.2V to 5.5V Input voltage range
• Operation down to 1.2V
• Extremely low quiescent current: less than 2µA
• High accuracy detection threshold: ±1.5%
• Monitor Power Supply Voltages
• Fixed thresholds from 2.2V to 4.6V
• Minimum 150ms reset pulse width with fast
delay time <20µs
• Debounced Manual Reset Input
• Available output configurations:
• Open-drain output
• CMOS active high output
• CMOS active low output
• Temp range -40 to 85°C
• 4 pin SOT143 package
Applications
• Notebook Computers
• Cell Phones
• Portable Electronics
• Embedded Systems
• Intelligent Instruments
Typical Application
VCC
VCC
AAT3526
MR AAT3527 RESET
AAT3528 (RESET)
*
100k
(nominal)
VCC
RESET
INPUT
uP
GND
GND
*AAT3528 Only
3526.2002.1.0.62
1

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