CAT809SSDI-T3 ON Semiconductor, CAT809SSDI-T3 Datasheet - Page 6

• Manufacturer Part Number: CAT809SSDI-T3
• Description: IC SUPERVISOR MPU PP 2.93V SC70-
• Manufacturer: ON Semiconductor
• Type: Simple Reset/Power-On Resetr

Specifications of CAT809SSDI-T3

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 2.93V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SC-70-3, SOT-323-3
• Monitored Voltage: 2.5 V, 3 V, 3.3 V, 5 V
• Output Type: Active Low, Push-Pull
• Manual Reset: Not Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.2 V
• Supply Current (typ): 15 uA
• Maximum Power Dissipation: 175 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: No
• Undervoltage Threshold: 2.89 V
• Overvoltage Threshold: 2.96 V
• Power-up Reset Delay (typ): 240 ms (Typ)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: CAT809SSDI-T3CT

CAT803, CAT809, CAT810
DETAILED DESCRIPTIOnS
RESET TIMInG
The reset signal is asserted LOW for the CAT803/
CAT809 and HIGH for the CAT80 when the power
supply voltage falls below the threshold trip voltage and
remains asserted for at least 40ms after the power
supply voltage has risen above the threshold.
V
The CAT803/CAT809/CAT80 protect µPs against
brownout failure. Short duration transients of 4µsec
or less and 00mV amplitude typically do not cause a
false RESET.
Figure 2 shows the maximum pulse duration of negative-
going V
Doc. No. MD-3004, Rev. AC
CC
figure 2. Maximum Transient Duration Without Causing a Reset Pulse vs. Reset Comparator Overdrive
TRAnSIEnT RESPOnSE
CC
transients that do not cause a reset condition.
V
RESET/OUT
CC
RESET
V
5V
TH
0V
5V
0V
5V
0V
figure 1. Reset Timing Diagram
T
D
6
As the amplitude of the transient goes further below
the threshold (increasing V
pulse duration decreases. In this test, the V
from an initial voltage of 0.5V above the threshold and
drops below it by the amplitude of the overdrive voltage
(V
TH
- V
CC
).
minimum)
(140ms
T
R
Reset Timeout Period
CAT803, CAT809
CAT810
Characteristics subject to change without notice
TH
- V
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CC
), the maximum
CC
starts