NCP803SN463T1G ON Semiconductor, NCP803SN463T1G Datasheet - Page 6

• Manufacturer Part Number: NCP803SN463T1G
• Description: IC MPU RESET MONITOR 4.63V SOT23
• Manufacturer: ON Semiconductor
• Type: Simple Reset/Power-On Resetr

Specifications of NCP803SN463T1G

• Number Of Voltages Monitored: 1
• Output: Open Drain or Open Collector
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 4.63V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
• Monitored Voltage: 1.2 V to 4.9 V
• Undervoltage Threshold: 4.63 V
• Overvoltage Threshold: 4.7 V
• Manual Reset: No
• Watchdog: No
• Battery Backup Switching: No
• Power-up Reset Delay (typ): 460 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1 V
• Supply Current (typ): 0.8 uA
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 105 C
• Chip Enable Signals: No
• Internal Hysteresis: No
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 105 C
• Output Type: Open Collector / Drain
• Power Fail Detection: No
• Number Of Elements: 1
• Monitored Voltage 1 (typ): 1.2 to 4.9V
• Threshold Voltage 1 (max): 4.7V
• Watchdog Timer: No
• Reset Active Time: 460ms
• Package Type: SOT-23
• Operating Supply Voltage (min): 1.2V
• Operating Supply Voltage (max): 5.5V
• Reset Threshold Voltage (max): 4.7V
• Reset Threshold Voltage (min): 4.56V
• Family Name: NCP803
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 3
• Supply Current: 0.0008mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: NCP803SN463T1GOS; NCP803SN463T1GOS; NCP803SN463T1GOSTR

Detail Operation Description
supervisory circuits are designed to monitor the power
supplies in digital systems and provide a reset signal to the
processor without any external components. Figure 2 shows
the timing diagram and a typical application below. Initially
consider that input voltage V
than the voltage detector upper threshold (
state for MAX803 and NCP803 devices. If there is an input
RESET
The MAX803, NCP803 series microprocessor reset
(RESET)
output voltage (Pin 2) will be in the high
Reset Output
MAX803, NCP803
Reset Output
MAX810
Input Voltage
CC
is at a nominal level greater
V
V
V
V
V
0V
V
V
0V
CC
TH+
TH–
CC
TH–
CC
TH–
V TH
Figure 12. Timing Waveforms
). And the
http://onsemi.com
6
power interruption and V
deficient, it will fall below the lower detector threshold
(V
state for the MAX803 and NCP803 devices. After
completion of the power interruption, V
nominal level and become greater than the V
sequence activates the internal oscillator circuitry and
digital counter to count. After the count of the timeout
period, the reset output will revert back to the original state.
t
TH−
RP
). This event causes the RESET output to be in the low
CC
becomes significantly
CC
will rise to its
TH
. This