MAX6672 Datasheet, PDF (1/6 Pages) Maxim Integrated Products – PWM Output Temperature Sensors in SC70 Packages

19-2458; Rev 0; 10/02
PWM Output Temperature Sensors
in SC70 Packages
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 informa-
tion 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 fea-
ture 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.
Features
o Simple Single-Wire PWM Output
o Tiny SC70 Package
o Low 60µA (typ) Supply Current Consumption
o 1.4kHz Nominal Frequency
o Choice of Outputs
Open Drain (MAX6672)
Push-Pull (MAX6673)
o 2.4V to 5.5V Supply Range
Applications
Industrial and Process Control
HVAC
Automotive
Environmental Control
Isolated Temperature Sensing
Ordering Information
PART
TEMP RANGE
MAX6672AXK-T -40°C to +125°C
MAX6673AXK-T -40°C to +125°C
PIN-
PACKAGE
5 SC70-5
5 SC70-5
TOP
MARK
ACQ
ACR
Typical Application Circuit
Pin Configuration
0.1µF
V_CC
MAX6672
MAX6673
GND
µC
GPIO TO CONTROL
*
SHUTDOWN
INPUT TO TIMER/
COUNTER
* PULLUP RESISTOR REQUIRED ONLY FOR THE MAX6672.
TOP VIEW
DOUT 1
5 V_CC
MAX6672
N.C. 2 _MAX6673
GND 3
4 GND
SC70
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