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The MAX6874/MAX6875 EEPROM-configurable, multivoltage
supply sequencers/supervisors monitor several
voltage detector inputs and general-purpose logic
inputs, and provide programmable open-drain outputs
for highly configurable power-supply sequencing applications.
The MAX6874 provides six voltage monitor
inputs, four general-purpose inputs, and eight programmable
open-drain outputs. The MAX6875 provides four
voltage monitor inputs, three general-purpose inputs,
and five programmable open-drain outputs. Manual reset
and margin disable inputs provide additional flexibility.
All voltage detectors offer configurable thresholds for
undervoltage detection. One high-voltage input (IN1)
provides detector threshold voltages from +2.5V to
+13.2V in 50mV increments, or from +1.25V to +7.625V
in 25mV increments. A second positive input (IN2) provides
detector threshold voltages from +2.5V to +5.5V
in 50mV increments, or from +1.25V to +3.05V in 25mV
increments. Positive inputs (IN3-IN6) provide detector
threshold voltages from +1V to +5.5V in 20mV increments,
or from +0.5V to +3.05V in 10mV increments.
Programmable output stages control power-supply
sequencing or system resets/interrupts. Program the
open-drain outputs as active-high or active-low.
Programmable timing delay blocks configure each output
to wait between 25µs and 1600ms before deasserting.
An SMBus™/I²C-compatible serial data interface
programs and communicates with the configuration
EEPROM, the configuration registers, and the internal
4kb user EEPROM of the MAX6874/MAX6875.
The MAX6874/MAX6875 are available in a 7mm x 7mm
x 0.8mm, 32-pin TQFN package and operate over
the extended temperature range (-40°C to +85°C).
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