1 Features

• 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 V_CC = 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, resistor- programmable 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.

1. For all available packages, see the package option addendum at the end of the datasheet.

Typical Application