CAT809TSDI-GT3 ON Semiconductor, CAT809TSDI-GT3 Datasheet - Page 7

• Manufacturer Part Number: CAT809TSDI-GT3
• Description: IC SUPERVISOR PP ACT LOW SC-70
• Manufacturer: ON Semiconductor
• Type: Simple Reset/Power-On Resetr

Specifications of CAT809TSDI-GT3

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 3.08V
• 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: 3.04 V
• Overvoltage Threshold: 3.11 V
• Power-up Reset Delay (typ): 240 ms (Typ)
• Number Of Elements: 1
• Monitored Voltage 1 (typ): 2.5/3/3.3/5V
• Watchdog Timer: No
• Chip Enable Signals: No
• Reset Active Time: 240ms(Typ)ms
• Package Type: SC-70
• Operating Supply Voltage (min): 1.2V
• Operating Supply Voltage (max): 5.5V
• Reset Threshold Voltage (max): 3.11V
• Reset Threshold Voltage (min): 3.04V
• Power Dissipation: 175mW
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 3
• Supply Current: 0.015mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Valid RESET with V
RESET pin and GND is recommended. For the CAT810, a pull-up resistor from RESET pin to V
Bi−directional Reset Pin Interfacing
CAT809/810 reset output and the mP/mC bi−directional reset pin.
CAT803 Open−Drain RESET Application
therefore needs a pull-up resistor on the output for proper
operation, as shown on Figure 11. An advantage of the
open−drain output includes the ability to “wire AND”
several outputs together to form an inexpensive logic circuit.
It is also possible to have the pull-up resistor connected to a
different supply which can be higher than the CAT803 V
pin. The value of the pull-up resistor is not critical in most
applications, typical values being between 5 kW and 10 kW.
To ensure that the CAT809 RESET pin is in a known state when V
The CAT809/810 can interface with mP/mC bi−directional reset pins by connecting a 4.7 kW resistor in series with the
The CAT803 features an open-drain RESET output and
Figure 8. RESET Valid with V
Power
Supply
CC
Under 1.0 V
CAT809
GND
V
Power
Supply
CC
RESET
CC
Figure 10. Bi−directional Reset Pin Interfacing
Under 1.0 V
CAT809
GND
V
CC
RESET
10 kW
Bi−directional
http://onsemi.com
I/O Pin
CC
4.7 kW
Power
Supply
7
Power
Supply
CC
RESET
INPUT
Figure 9. RESET Valid with V
is under 1.0 V, a >10 kW pull−down resistor between
BUF
Figure 11. Typical CAT803 Open−Drain
GND
V
mP
CC
CAT810
GND
V
CC
CAT803
GND
RESET
Circuit Configuration
V
Buffered
RESET
CC
RESET
(For example:
68HC11)
CC
5 kW
is needed.
CC
10 kW
Under 1.1 V
RESET
INPUT
GND
V
mP
CC