Input Voltage, Pin 2
NCP304, NCP305
VDET+ + 2
0.7
0V
Reset Output Voltage, Pin 1
5V
0.5 V
0V
2.5 V
NCP305L
Open Drain
VDET+ + 2
Reset Output Voltage, Pin 1 VDET+ + 2
2
0V
tpLH
0.1 V
tpHL
NCP304L
Complementary
NCP304 and NCP305 series are measured with a 10 pF capacitive load. NCP305 has an additional 470 k pullup resistor connected
from the reset output to +5.0 V. The reset output voltage waveforms are shown for the active low āLā devices. The upper detector
threshold, VDET+ is the sum of the lower detector threshold, VDETā plus the input hysteresis, VHYS.
Figure 2. Propagation Delay Measurement Conditions
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