RT9802 Datasheet, PDF (2/5 Pages) Richtek Technology Corporation – User Programmable Micro-Power Voltage Detectors

RT9802
Typical Application Circuit
Preliminary
μP
VDD ^GND
RESET
VSET0 VSET1
RT9802
GND VSET2
RESET VDD
RT9802B V_TH = 2.5V in this example
Functional Pin Description
Pin Name Pin Function
VSET0
Threshold Voltage Selection Pin 1
GND
Ground Pin
RESET
Reset Pulse Output, Negative Pulse
VDD
Power Pin
VSET1
Threshold Voltage Selection Pin 2
VSET2
Threshold Voltage Selection Pin 3
Function Block Diagram
Internal Clock
VSET0
VSET1
VSET2
VSET
CMP
Timer
Threshold Voltage Setting
POR
Power On Reset
VDD
P MOS
N MOS
RESET
GND
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2
DS9802-07 March 2007