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AAT3526 Datasheet(PDF) 1 Page - Advanced Analog Technology, Inc.

Part No. AAT3526
Description  MicroPower™ Supervisory Circuit with Manual Reset
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Manufacturer  AAT [Advanced Analog Technology, Inc.]
Direct Link  http://www.aatech.com.tw
Logo AAT - Advanced Analog Technology, Inc.

AAT3526 Datasheet(HTML) 1 Page - Advanced Analog Technology, Inc.

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AAT3526/7/8
MicroPower™ Supervisory Circuit
with Manual Reset
Typical Application
*AAT3528 Only
AAT3526
AAT3527
AAT3528
µP
V
MR
CC
VCC
VCC
RESET
(RESET)
GND
GND
RESET
INPUT
100k
(nominal)
*
3526.2006.03.1.6
1
General Description
The AAT3526/7/8 PowerManager products are
members of AnalogicTech's Total Power Manage-
ment IC™ (TPMIC™) product family. These micro-
processor reset circuits are ideal for monitoring volt-
age supplies in portable systems, where extended
battery life is critical. They provide a reliable, low-
cost solution by eliminating external components.
The AAT3526/7/8 products operate by monitoring
the system power supply voltage. When the input
voltage drops below a fixed threshold, the device
asserts a reset signal for a minimum of 150ms after
V
CC 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
V
CC. 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.
AAT3526/7/8 devices are available in a Pb-free,
4-pin SOT143 package and are specified over the
-40°C to +85°C operating temperature range.
Features
Input Voltage Range: 1.2V to 5.5V
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
Temperature Range: -40°C to +85°C
4-Pin SOT143 Package
4kV ESD Rating
Applications
Cell Phones
Embedded Systems
Intelligent Instruments
Notebook Computers
Portable Electronics
PowerManager


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