IMP6303 Datasheet, PDF (1/8 Pages) IMP, Inc – 3-Pin Microcontroller Power Supply Supervisor

IMP6303
POWER MANAGEMENT
3-Pin Microcontroller
Power Supply Supervisor
The IMP6303 is a 4.0V power supply supervisor circuits optimized for low-
power microprocessor (µP), microcontroller (µC) and digital systems.
A reset signal is issued if the power supply voltage drops below a preset
reset threshold and is asserted for at least 140ms after the supply has
risen above the reset threshold. The IMP6303 has an active-low RESET
output that is guaranteed to be in the correct state for V_CC down to 1.1V.
The reset comparator is designed to ignore fast transients on V_CC.
Low supply current makes the IMP6303 ideal for use in portable and
battery operated equipment. The IMP6303 is available in a compact 3-pin
SOT23, TO-92 and 5 pin SOT23-5 packages.
Key Features
N Monitor 4.0V supply
N 140ms min. reset pulse width
N Active-low reset valid with 1.1V supply
N Small 3-pin SOT-23 package
N Small 3-pin TO-92 package
N Small 5-pin SOT-23-5 package
N No external components
N Specified over full temperature range
— – 40°C to 105°C
Block Diagrams
Applications
N Embedded controllers
N Battery operated systems
N Intelligent instruments
N Wireless communication systems
N PDAs and handheld equipment
VCC
VCC
IMP6303
RESET
(RESET)
GND
VCC
µP
RESET
Input
GND
6303_01.eps
© 2001 IMP, Inc.
408-432-9100/www.impweb.com
1