MAX6869UK29D3S Maxim Integrated Products, MAX6869UK29D3S Datasheet - Page 9

• Manufacturer Part Number: MAX6869UK29D3S
• Description: Processor Supervisor 2.925V 1.2V to 5.5V 5-Pin SOT-23
• Manufacturer: Maxim Integrated Products

Specifications of MAX6869UK29D3S

• Package: 5SOT-23
• Watchdog Timer: Yes
• Operating Temperature: -40 to 85 °C
• Number Of Supervisors: 1
• Output Driver: Active Low|Open Drain
• Maximum Power Dissipation: 571 mW
• Maximum Reset Active Time: 225(Typ) ms
• Monitored Voltage: 1.2 to 5.5 V
• Minimum Reset Threshold Voltage: 2.852 V
• Maximum Reset Threshold Voltage: 2.998 V

MAX6867/
MAX6869
—
1
2
3
4
5
PIN
Nanopower µP Supervisory Circuits with
_______________________________________________________________________________________
MAX6868
—
1
2
3
5
4
Manual Reset and Watchdog Timer
RESET
RESET
NAME
GND
WDI
V
MR
CC
MAX6867/MAX6868/MAX6869 Pin Description
Watchdog Input. If WDI remains high or low for longer than the watchdog timeout
period, the internal watchdog timer expires, and a reset is triggered for the reset
timeout period. The internal watchdog timer clears whenever reset is asserted,
the manual reset is asserted, or WDI sees a rising or falling edge.
Ground
Active-Low Manual Reset Input. Drive MR low to initiate a reset. The reset output
remains asserted while MR is held low and for the reset timeout period after MR
transitions high. Leave MR unconnected or connect to V
internally pulled up to V
Active-Low Open-Drain or Push-Pull Reset Output. RESET transitions from high to
low when V
watchdog timer expires. RESET remains low for the reset timeout period after
V
timer expires. Push-pull RESET outputs are referenced to V
RESET outputs require an external pullup resistor.
Supply Voltage. Input for V
a 0.1µF capacitor to GND.
Active-High Push-Pull Reset Output. RESET transitions from low to high when
V
timer expires. RESET remains high for the reset timeout period after V
exceeds the device reset threshold, MR deasserts, or after the watchdog timer
expires. RESET is referenced to V
CC
CC
exceeds the device reset threshold, MR deasserts, or after the watchdog
drops below the selected reset threshold, MR is pulled low, or the watchdog
CC
drops below the selected reset threshold, MR is pulled low, or the
CC
CC
through 10kΩ.
reset monitor. For noisy systems, bypass V
CC
FUNCTION
.
CC
CC
if unused. MR is
. Open-drain
CC
CC
with
9