3 PIN MICROPROCESSOR RESET MONITORS
FSP2200
FEATURES
Precision VCC Monitor for 2.5 V, 3.0V, 3.3 V, and
5.0 V Supplies
Fully Specified Over Temperature
Available in Three Output Configurations
Push-Pull RESET Output
140ms min Power-On Reset Pulse Width
12µA Supply Current
Guaranteed Reset Valid to Vcc=+1V
Power Supply Transient Immunity
No External Components
SOT323-3L and SOT23-3L Packages
GENERAL DESCRIPTION
The FSP2200 is a microprocessor supervisory circuits
used to monitor the power supplies in MPU and digital
systems. They provide excellent circuit reliability and
low cost by eliminating external components and
adjustments when used with +5V, +3.3V, +3.0V, or
+2.5V powered circuits
These curcuits perform a single function: they assert a
reset signal whenever the Vcc supply voltage declines
below a preset threshold, keeping it asserted for at
least 140ms after Vcc has risen above the reset
threshold. Reset thresholds suitable for operation whit
a variety of supply voltages are available. The
FSP2200 have push-pull outputs, an active-low
RESET output. The reset comparator is designed to
ignore fast transients on Vcc, and the outputs are
guaranteed to be in the correct logic state for Vcc down
to 1V. Low supply current makes the FSP2200 ideal for
use in portable equipment. The FSP2200 are available
in SOT323-3L or SOT23-3L packages.
APPLICATIONS
Computers
Controllers
Intelligent Instruments
Critical MPU and MPU Power Monitoring
Portable/Battery-Powered Equipment
Automotive
PIN CONFIGURATION
(Top View)
GND 1
3
RESET 2
VCC
Pin
1
2
3
Name
GND
RESET
VCC
Function
Ground reference
Active-low output. RESET remains low while VCC is below the reset threshold,
and for a reset timeout period after VCC rises above the reset threshold.
Supply voltage (typ.)
TYPICAL OPERATION CIRCUIT
1/7
2007-2-8
FOSLINK [ FOSLINK SEMICONDUCTOR CO.,LTD ]
