1 Features
1• Threshold Accuracy:
– ±0.5°C Typical
– ±3°C Maximum (60°C to 100°C)
• Temperature Threshold Set By 1% External
Resistor
• Low Quiescent Current: 40 μA Typical
• Open-Drain, Active-Low Output Stage
• Pin-Selectable 2°C or 10°C Hysteresis
• Reset Operation Specified at VCC = 0.8 V
• Supply Range: 2.7 V to 5.5 V
• Package: 5-Pin SOT-23

2 Applications
• Computers (Laptops and Desktops)
• Servers
• Industrial and Medical Equipment
• Storage Area Networks
• Automotive

3 Description
The TMP709 is a fully-integrated, resistorprogrammable
temperature switch with a temperature
threshold that is set by just one external resistor
within the entire operating range. The TMP709
provides an open-drain, active-low output and has a
2.7-V to 5.5-V supply-voltage range.
The temperature threshold accuracy is typically
±0.5°C, with a maximum of ±3°C (60°C to 100°C).
The quiescent current consumption is typically 40 μA.
Hysteresis is pin-selectable to 2°C or 10°C.
The TMP709 is available in a 5-pin, SOT-23 package.