MAX6711T

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
12A Supply Current
Guaranteed Reset Valid to V_CC = +1V
Power-Supply Transient Immunity
No External Components
4-Pin SC70 Package

Terminal Voltage (with respect to GND)
V_CC........................................................................-0.3V to +6.0V
RESET, RESET (push-pull) .........................-0.3V to (V_CC + 0.3V)
RESET (open drain)...............................................-0.3V to +6.0V
MR..............................................................-0.3V to (V_CC + 0.3V)
Input Current, V_CC, MR.......................................................20mA
Output Current, RESET, RESET ..........................................20mA
Rate of Rise, V_CC ............................................................100V/µs
Continuous Power Dissipation (TA = +70°C)
4-Pin SC70 (derate 3.1mW/°C above +70°C)..............245mW
Operating Temperature Range .....................-40°C to +125°C
Storage Temperature Range ........................-65°C to +150°C
Lead Temperature (soldering, 10s) ..............................+300°C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The MAX6711T are microprocessor (P) supervisory circuits used to monitor the power supplies in P and digital systems. They provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5.0V, +3.3V, +3.0V, or +2.5V-powered circuits. MAX6711T also provide a debounced manual reset input.

These MAX6711T assert a reset signal whenever the VCC supply voltage declines below a preset threshold or whenever manual reset is asserted. Reset of MAX6711T remains asserted for at least 140ms after VCC 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 MAX6711T 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 VCC. The MAX6711T have an active-low reset output, while the MAX6712 has an active-high reset output. The reset comparator is designed to ignore fast transients on VCC, and the outputs are guaranteed to be in the correct logic state for VCC down to 1V.

Low supply current makes the MAX6711T ideal for use in portable equipment. These devices are available in a 4-pin SC70 package.