APR3101/2/3
MicroPower Microprocessor Reset Circuit with Manual Reset
Features
•
•
•
•
•
•
•
1.2V to 6V Input Voltage Range
Low Quiescent Current : less Than 1.5
µA
High accuracy detection threshold : ±1.5%
Fixed trimmed reset thresholds for 1.5V, 1.75V,
2.32V, 2.63V, 2.93V, 3.08V, 3.9V, 4.38V.
Manual Reset Input
Reset Timeout Period 250ms
Available output configurations
- Open-drain output
- CMOS active high output
- CMOS active low output
•
•
SOT-23-5 package
No external components
General Description
The APR3101/2/3 are designed to monitor voltage
supplies in
µP
and digital systems. The quiescent
current is extremely low, typically 1.5
µA,
making it
ideal for portable battery operated equipment. The
APR3101/2/3 operate by monitoring the system power
supply voltage. When the input voltage drops below a
fixed threshold or whenever manual reset is asserted,
the device asserts a reset signal for a fixed time pe-
riod after Vcc rises above the fixed threshold or manual
reset is deasserted. The APR3101/2/3 series is avail-
able with three output stage versions:APR3101 push-
pull active low output, APR3102 push-pull active high
output and APR3103 open drain active low output. The
APR3101/2/3 also have a debounced manual reset
Applications
•
•
•
•
Computers
Cell Phones
Portable Electronics
µP
Power Supply Monitoring
input that is provided to override the reset monitor.
They are also designed to reject fast line transient
glitches on Vcc. The APR3101/2/3 are come in a
miniature SOT-23-5 package.
Pin Configuration
V
CC
MR
5
1
2
4
3
GND NC Reset (3101/3)
Reset (3102)
SOT-23-5 (Top View)
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright
ANPEC Electronics Corp.
Rev. A.3 - Feb., 2004
1
www.anpec.com.tw
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
