Datasheet

General Description
The MAX6672/MAX6673 are low-current temperature
sensors with a single-wire output. These temperature
sensors convert the ambient temperature into a 1.4kHz
PWM output, which contains the temperature information
in its duty cycle. The MAX6672 has an open-drain output
and the MAX6673 has a push-pull output.
The MAX6672/MAX6673 operate from 2.4V to 5.5V with a
maximum supply current of 150µA. Both devices feature
a single-wire output that minimizes the number of pins
necessary to interface with a microprocessor.
The MAX6672/MAX6673 are available in 5-pin SC70
packages.
Applications
● Industrial and Process Control
● HVAC
● Environmental Control
● Isolated Temperature Sensing
Features
● Simple Single-Wire PWM Output
● Tiny SC70 Package
● Low 60µA (typ) Supply Current Consumption
● 1.4kHz Nominal Frequency
● Choice of Outputs
Open Drain (MAX6672)
Push-Pull (MAX6673)
● 2.4V to 5.5V Supply Range
PART TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX6672AXK-T -40°C to +125°C 5 SC70 ACQ
MAX6673AXK-T -40°C to +125°C 5 SC70 ACR
N.C.
GNDGND
1 5 V
CC
DOUT
MAX6672
MAX6673
SC70
TOP VIEW
2
3 4
V
CC
GND
GPIO TO CONTROL
SHUTDOWN
INPUT TO TIMER/
COUNTER
0.1µF
MAX6672
MAX6673
µC
*
* PULLUP RESISTOR REQUIRED ONLY FOR THE MAX6672.
MAX6672/MAX6673 PWM Output Temperature Sensors
in SC70 Packages
19-2458; Rev 1; 4/14
Pin CongurationTypical Application Circuit
Ordering Information