MAX6735AKAZID4+T Maxim Integrated, MAX6735AKAZID4+T Datasheet - Page 7

• Manufacturer Part Number: MAX6735AKAZID4+T
• Description: Supervisory Circuits Single-/Dual-/Triple-Voltage N
• Manufacturer: Maxim Integrated
• Series: MAX6730A, MAX6731A, MAX6732A, MAX6733A, MAX6734A, MAX6735Ar

Specifications of MAX6735AKAZID4+T

• Number Of Voltages Monitored: 3
• Monitored Voltage: 0.9 V to 5 V
• Undervoltage Threshold: 4.5 V, 3 V
• Manual Reset: Resettable
• Watchdog: Watchdog
• Supply Voltage - Max: 5.5 V
• Maximum Power Dissipation: 714 mW
• Supply Current (typ): 15 uA
• Supply Voltage - Min: 0.8 V

MAX6730A
MAX6731A
—
—
1
2
3
4
5
6
Circuits with Independent Watchdog Output
Single-/Dual-/Triple-Voltage µP Supervisory
MAX6732A
MAX6733A
PIN
—
—
1
2
3
5
6
4
_______________________________________________________________________________________
MAX6734A
MAX6735A
1
2
4
5
3
8
6
7
NAME
RSTIN
WDO
V
V
GND
WDI
RST
MR
CC
CC
1
2
Active-Low Reset Output. The MAX6730A/MAX6732A/MAX6734A provide an
open-drain output. The MAX6731A/MAX6733A/MAX6735A provide a push-pull
output. RST asserts low when any of the following conditions occur: V
V
or MR is driven low. Open-drain versions require an external pullup resistor.
Ground
Active-Low Watchdog Output. The MAX6730A/MAX6732A/MAX6734A provide
an open-drain WDO output. The MAX6731A/MAX6733A/MAX6735A provide a
push-pull WDO output. WDO asserts low when no low-to-high or high-to-low
transition occurs on WDI within the watchdog timeout period (t
undervoltage-lockout condition exists for V
deasserts without a timeout period when V
reset thresholds, or when the manual reset input is deasserted. Open-drain
versions require an external pullup resistor.
Active-Low Manual Reset Input. Drive MR low to force a reset. RST remains
asserted as long as MR is low and for the reset timeout period after MR releases
high. MR has a 50kΩ pullup resistor to V
V
Watchdog Input. If WDI remains high or low for longer than the watchdog
timeout period, the internal watchdog timer expires and the watchdog output
asserts low. The internal watchdog timer clears whenever RST asserts or a
rising or falling edge on WDI is detected. The watchdog has an initial watchdog
timeout period (35s min) after each reset event and a short timeout period
(1.12s min) after the first valid WDI transition. Floating WDI does not disable the
watchdog timer function.
Primary Supply-Voltage Input. V
greater than V
Secondary Supply-Voltage Input. V
greater than V
Undervoltage Reset Comparator Input. RSTIN provides a high-impedance
comparator input for the adjustable reset monitor. RST asserts low if the voltage
at RSTIN drops below the 626mV internal reference voltage. Connect a resistive
voltage-divider to RSTIN to monitor voltages higher than 626mV. Connect
RSTIN to V
CC
CC
2 drops below its preset threshold, RSTIN drops below its reset threshold,
1 if unused.
CC
1 or V
CC
CC
2. V
1. V
CC
CC
CC
2 if unused.
1 is the input to the primary reset threshold monitor.
2 is the input to the secondary reset threshold monitor.
CC
FUNCTION
1 provides power to the device when it is
CC
2 provides power to the device when it is
CC
CC
CC
1; leave MR open or connect to
1, V
1, V
CC
CC
2, and RSTIN exceed their
2, or RSTIN. WDO
Pin Description
WD
) or if an
CC
1 or
7