82NXX Datasheet, PDF (8/17 Pages) Unisonic Technologies – VOLTAGE DETECTORS

82NXX
TIMING CHART FUNCTIONAL DESCRIPTION
CMOS IC
INPUT VOLTAGE(VIN)
6 ^{DETECT RELEASE VOLTAGE(V DR)}
DETECT VOLTAGE(V DF)
MIN.OPERATING VOLTAGE(VMIN)
GROUND VOLTAGE(Vss)
OUTPUT VOLTAGE(V OUT)
GROUND VOLTAGE(Vss)
12
3
45
1. When input voltage (V_IN) rises above detect voltage (V_DF), output voltage (V_OUT) will be equal to V_IN.
2. When input voltage (V_IN) falls below detect voltage (V_DF), output voltage (V_OUT) will be equal to the ground voltage
(V_SS) level.
3. When input voltage (V_IN) falls to a level below that of the minimum operating voltage (V_MIN), output will become
unstable. In this condition, V_IN will equal the pulled-up output ( should output be pulled-up.)
4. When input voltage (V_IN) rises above the ground voltage (V_SS) level, output will be unstable at levels below the
minimum operating voltage (V_MIN). Between the V_MIN and detect release voltage (V_DR) levels, the ground voltage
(V_SS) level will be maintained.
5. When input voltage (V_IN) rises above detect release voltage (V_DR), output voltage (V_OUT) will be equal to V_IN.
6. The difference between V_DR and V_DF represents the hysteresis range.
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QW-R502-057,B