MAX6673

19-2458; Rev 0; 10/02 www.DataSheet4U.com 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 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. 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 Features MAX6672/MAX6673 Applications Industrial and Process Control HVAC Automotive Environmental Control Isolated Temperature Sensing PART Ordering Information TEMP RANGE MAX6672AXK-T -40°C to +125°C MAX6673AXK-T -40°C to +125°C PINPACKAGE 5 SC70-5 5 SC70-5 TOP MARK ACQ ACR Typical Application Circuit Pin Configuration µC VCC * 0.1µF MAX6672 MAX6673 GND GPIO TO CONTROL SHUTDOWN INPUT TO TIMER/ COUNTER TOP VIEW DOUT 1 5 VCC N.C. 2 MAX6672 MAX6673 4 GND GND 3 SC70 * PULLUP RESISTOR REQUIRED ONLY FOR THE MAX6672. ________________________________________________________________ Maxim In...