CAT809HTBI-GT3 ON Semiconductor, CAT809HTBI-GT3 Datasheet - Page 6

• Manufacturer Part Number: CAT809HTBI-GT3
• Description: Supervisory Circuits SUP PUSH-PULL ACT LOW
• Manufacturer: ON Semiconductor

Specifications of CAT809HTBI-GT3

• Rohs: yes
• Number Of Voltages Monitored: 4
• Monitored Voltage: 2.5 V, 3 V, 3.3 V, 5 V
• Output Type: Active Low, Push-Pull
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-23-3
• Maximum Power Dissipation: 320 mW
• Supply Current (typ): 6 uA

Detailed Descriptions
Reset Timing
The reset signal is asserted LOW for the CAT803/CAT809 and HIGH for the CAT810 when the power supply voltage falls below
the threshold trip voltage and remains asserted for at least 140 ms after the power supply voltage has risen above the threshold.
V
brownout failure. Short duration transients of 4 msec or less
and 100 mV amplitude typically do not cause a false RESET.
going V
threshold (increasing V
duration decreases. In this test, the V
voltage of 0.5 V above the threshold and drops below it by
the amplitude of the overdrive voltage (V
CC
The CAT803/CAT809/CAT810 protect mPs against
Figure 7 shows the maximum pulse duration of negative−
As the amplitude of the transient goes further below the
CAT803, CAT809
Transient Response
CC
transients that do not cause a reset condition.
CAT810
V
CC
RESET
RESET
TH
V
5 V
0 V
5 V
0 V
5 V
0 V
− V
TH
CC
), the maximum pulse
CC
starts from an initial
TH
Figure 6. Reset Timing Diagram
− V
T
CC
D
).
http://onsemi.com
6
30
25
20
15
10
Figure 7. Maximum Transient Duration without
5
0
Causing a Reset Pulse vs. Reset Comparator
1
RESET OVERDRIVE V
minimum)
(140 ms
T
R
10
CAT809M
Overdrive
Reset Timeout Period
CAT809Z
TH
− V
100
CC
T
(mV)
AMB
= 25°C
1000