RT9818C-20GV Richtek USA Inc, RT9818C-20GV Datasheet - Page 9
![no-image](/images/no-image-200.jpg)
RT9818C-20GV
Manufacturer Part Number
RT9818C-20GV
Description
IC VOLT DETECTOR 2.0V SOT23-3
Manufacturer
Richtek USA Inc
Type
Simple Reset/Power-On Resetr
Datasheet
1.RT9818A-13GU3.pdf
(14 pages)
Specifications of RT9818C-20GV
Number Of Voltages Monitored
1
Output
Open Drain or Open Collector
Reset
Active Low
Reset Timeout
143 ms Minimum
Voltage - Threshold
2V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
TO-236-3, SC-59, SOT-23-3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
RT9818
Application Information
Multiple Supplies
Mainly, the pull-up connected to the RT9818 will connect to the supply voltage that is being monitored at the IC's
VDD
pin.
However, some systems may use the open-drain output to level-shift from the monitored supply to reset circuitry powered
by some other supply.
Benefits of Highly Accurate Reset Threshold
Most μP supervisor ICs have reset threshold voltages between 1% and 1.5% below the value of nominal supply voltages.
This ensures a reset will not occur within 1% of the nominal supply, but will occur when the supply is 1.5% below
nominal.
DS9818-09 April 2011
www.richtek.com
9