fitipower integrated technology lnc.
3-Pin Microprocessor
Reset Circuits
Description
Features
The FP6809 and FP6810 are cost-effective system
supervisory circuits which are designed to monitor
micro-processor voltage and VCC in digital systems.
They provide a reset signal to the host processor
when necessary.
Precision Monitoring of Power-Supply Voltage
140ms Guaranteed Minimum Reset Output
Duration
Low Supply Current
VCC Transient Immunity
Small SOT-23-3 Package
No External Components
Guaranteed Reset Valid to VCC=1V
Available in Three Output Configurations
These circuits assert a reset signal whenever the
VCC supply voltage declines below a preset
threshold. They keep reset signal asserted for at
least 140ms after VCC has risen above the reset
threshold.
Open-Drain ꢀꢁꢀꢂ Output (FP6809-N)
Push-Pull ꢀꢁꢀꢂ Output (FP6809-C)
Push-Pull RESET Output (FP6810-C)
RoHS Compliant
The FP6809-N has an open-drain output stage
which requires a pull-up resistor while FP6809-C
and FP6810-C have push-pull outputs.
The
FP6809 has an active-low ꢀꢁꢀꢂ output while the
FP6810 has an active-high RESET output.
Applications
Computer
The FP6809 and FP6810 are optimized to reject
fast transient glitches on the VCC line. Low supply
current makes these devices suitable for portable
equipments.
Battery Powered Equipment
Microprocessor Power Supply Monitoring
Embedded System
Automotive
Pin Assignments
S3 Package (SOT-23-3)
VCC
Ordering Information
FP6809/10-□□□□□
TR: Tape/Reel
P: Green
G: Green
3
1
2
Package Type
S3: SOT-23-3
GND
RESET
(RESET)
N: Open-Drain (FP6809 only)
C: Push-Pull
Figure 1. Pin Assignment of FP6809/FP6810
Reset Voltage:
23: 2.32V 40: 4.00V
26: 2.63V 44: 4.38V
29: 2.93V 46: 4.63V
31: 3.08V
FP6809: Active Low Reset
FP6810: Active High Reset
Note1: Please consult Fitipower sales office or authorized
distributors for availability of special reset voltages.
FP6809/6810-1.6-JUL-2014
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