RT9818C-42GV Richtek USA Inc, RT9818C-42GV Datasheet - Page 2

• Manufacturer Part Number: RT9818C-42GV
• Description: IC VOLT DETECTOR 4.2V SOT23-3
• Manufacturer: Richtek USA Inc
• Type: Simple Reset/Power-On Resetr

Specifications of RT9818C-42GV

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 143 ms Minimum
• Voltage - Threshold: 4.2V
• 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
• Other names: 1028-1021-2

RT9818
Pin Configurations
Functional Pin Description
Function Block Diagram
www.richtek.com
2
Pin Name
GND
RESET
VDD
RESET
RESET/
RESET
SOT-23-3
VDD
3
Pin Function
Ground
Active Low Open-Drain Reset Output
Active High Open-Drain Reset Output
Power Pin
GND
2
RESET/
RESET
GND
4
Voltage Setting
SC-82
Threshold
VSET
SOT-23-3 (L-Type)
VDD
GND
NC
2
3
VDD
VDD
3
RESET/
RESET
Power On Reset
2
CMP
POR
(TOP VIEW)
SC-82 (R-Type)
RESET/
RESET
VDD
4
Timer
GND
NC
2
3
RESET/
RESET
SOT-23-5
NC
5
N MOS
VDD GND
2
NC
4
3
RESET/
GND
RESET
GND
SC-70-3
VDD
3
RESET/
RESET
2
DS9818-07 June 2009
RESET/
RESET
1
SOT-89
VDD
2
GND
3