Datasheet

● Computers
● Controllers
● Intelligent Instruments
● Critical µP and µC
Power Monitoring
● Portable/Battery-
Powered Equipment
General Description
The MAX6711/MAX6712/MAX6713 are microprocessor
(µP) supervisory circuits used to monitor the power
supplies in µP and digital systems. They provide
excellent circuit reliability and low cost by eliminating exter-
nal components and adjustments when used with
+5.0V, +3.3V, +3.0V, or +2.5V-powered circuits. They
also provide a debounced manual reset input.
These circuits assert a reset signal whenever the V
CC
supply voltage declines below a preset threshold or
whenever manual reset is asserted. Reset remains
asserted for at least 140ms after V
CC
has risen above
the reset threshold or when manual reset is deasserted.
Reset thresholds suitable for operation with a variety of
supply voltages are available.
The MAX6713 has an open-drain output stage, while
the MAX6711/MAX6712 have push-pull outputs. The
MAX6713’s open-drain RESET output requires a pull-up
resistor that can be connected to a voltage higher than
V
CC
. The MAX6711/MAX6713 have an active-low reset
output, while the MAX6712 has an active-high reset out-
put. The reset comparator is designed to ignore fast
transients on V
CC
, and the outputs are guaranteed to
be in the correct logic state for V
CC
down to 1V.
Low supply current makes the MAX6711/MAX6712/
MAX6713 ideal for use in portable equipment. These
devices are available in a 4-pin SC70 package.
Applications
Features
● Precision Monitoring of 2.5V, 3.0V, 3.3V, and 5.0V
Power-Supply Voltages
● Fully Specified Over Temperature
● Available in Three Output Configurations
Push-Pull RESET Output (MAX6711)
Push-Pull RESET Output (MAX6712)
Open-Drain RESET Output (MAX6713)
● 140ms min Power-On-Reset Pulse Width
● Manual Reset Input
● 12µA Supply Current
● Guaranteed Reset Valid to V
CC
= +1V
● Power-Supply Transient Immunity
● No External Components
● 4-Pin SC70 Package
Note: These parts are offered in 2.5k or 10k reels and must
be ordered in 2.5k or 10k increments. Order MAX6711_EXS-T
for 2.5k reels and MAX6711_EXS-T10 for 10k reels. Insert the
desired suffix letter from the Selector Guide into the blank to
complete the part number.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
PART TEMP RANGE PIN-PACKAGE
MAX6711_EXS-T -40°C to +125°C 4 SC70
MAX6711_EXS-T10 -40°C to +125°C 4 SC70
MAX6712_EXS-T -40°C to +125°C 4 SC70
MAX6712_EXS-T10 -40°C to +125°C 4 SC70
MAX6713_EXS-T -40°C to +125°C 4 SC70
MAX6713_EXS-T10 -40°C to +125°C 4 SC70
TOP VIEW
RESET (RESET)
1
GND
V
CC
MAX6711
MAX6712
MAX6713
SC70-4
2
4
MR
3
( ) ARE FOR MAX6712.
MAX6711
MAX6713
V
CC
V
CC
R
PULL-UP
*
RESET
RESET
INPUT
GND
MR
V
CC
GND
*MAX6713 ONLY
PUSHBUTTON
SWITCH
µP
MAX6711L/M/R/S/T/Z,
MAX6712L/M/R/S/T/Z,
MAX6713L/M/R/S/T/Z
4-Pin SC70 Microprocessor
Reset Circuits with Manual Reset Input
19-1623; Rev 2; 5/14
Pin CongurationTypical Operating Circuit
Selector Guide appears at end of data sheet.
Ordering Information