MAX6720AUTRDD4+T Maxim Integrated, MAX6720AUTRDD4+T Datasheet - Page 8

• Manufacturer Part Number: MAX6720AUTRDD4+T
• Description: Supervisory Circuits
• Manufacturer: Maxim Integrated
• Series: MAX6715A, MAX6716A, MAX6717A, MAX6718A, MAX6719A, MAX6720A, MAX6721A, MAX6722A, MAX6723A, MAX6724A, MAX6725A, MAX6726A, MAX6727A, MAX6728A, MAX6729A, MAX6797Ar

Specifications of MAX6720AUTRDD4+T

• Number Of Voltages Monitored: 3
• Monitored Voltage: 1.8 V to 5 V, 0.9 V to 3.3 V
• Undervoltage Threshold: 2.55 V, 0.765 V, Adjustable
• Overvoltage Threshold: 2.7 V, 0.81 V, Adjustable
• Output Type: Active Low, Push-Pull
• Manual Reset: Resettable
• Watchdog: No Watchdog
• Battery Backup Switching: No Backup
• Power-up Reset Delay (typ): 2240 ms
• Supply Voltage - Max: 5.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-23
• Chip Enable Signals: No
• Maximum Power Dissipation: 696 mW
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: No
• Supply Current (typ): 15 uA
• Supply Voltage - Min: 0.8 V

Dual/Triple, Ultra-Low-Voltage, SOT23 µP
Supervisory Circuits
8
M AX6 7 1 5A/
M AX6 7 1 6A
_______________________________________________________________________________________
—
—
M AX6 7 1 7A/
M AX6 7 1 8A
—
—
M AX6 7 1 9A/
M AX6 7 2 0A
—
5
M AX6 7 2 1A/
M AX6 7 2 2A
—
5
PI N
M AX6 7 2 3A/
M AX6 7 2 4A
3
5
M AX6 7 2 5A/
M AX6 7 2 6A
3
7
M AX6 7 2 7A
3
7
Pin Description (continued)
M AX6 7 2 8A/
M AX6 7 2 9A/
M AX6 7 9 7A
—
3
RSTIN
NAME
WDI
Watchdog Input. If WDI
remains high or low for
longer than the watchdog
timeout period, the internal
watchdog timer runs out
and the reset output
asserts for the reset
timeout period. The
internal watchdog timer
clears whenever a reset is
asserted or WDI sees a
rising or falling edge. The
watchdog has a long
startup period (35s min)
after each reset event and
a short watchdog timeout
period (1.12s min) after
the first valid WDI
transition. Leave WDI
unconnected to disable
the watchdog timer. The
WDI unconnected-state
detector uses a small
200nA current source.
Therefore, do not connect
WDI to anything that will
source more than 50nA.
Undervoltage Reset
Comparator Input. High-
impedance input for
adjustable reset monitor.
The reset output is
asserted when RSTIN falls
below the 0.626V internal
reference voltage. Set the
monitored voltage reset
threshold with an external
resistor-divider network.
Connect RSTIN to V
or V
CC
2 if not used.
FUNCTION
CC
1