1 Features

• Accuracy: ±1°C (typical at +25°C)

• Programmable trip point

• Programmable hysteresis: 5°C/10°C

• Open-drain outputs

• Low power: 110 μA (maximum)

• Wide voltage range: +1.8 V to +18 V

• Temperature range: –40°C to +125°C

• Analog out: 10mV/°C

• SC70-6 and SOT23-6 packages

2 Applications

• Power-supply systems

• DC-DC modules

• Thermal monitoring

• Electronic protection systems

3 Description

The TMP300 is a low-power, resistor-programmable,

digital output temperature switch. The device allows

a threshold point to be set by adding an external

resistor. Two levels of hysteresis are available. The

TMP300 has a VTEMP analog output that can be used

as a testing point or in temperature-compensation

loops.

Available in two micropackages with proven thermal

characteristics, low current consumption, and a supply

voltage as low as 1.8 V, the TMP300 is designed

for power-sensitive systems that require simple and

reliable thermal management.