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New Resistor Programmable TMP300 Switches

07.03.2008

Texas Instruments has launched the TMP300, a low-power, wide-voltage, low-power RPG temperature switch. The TMP300 is designed for simple temperature monitoring and control systems.

The small dimensions of the case make it attractive for installation in power supplies, DC / DC modules and thermal protection systems. The temperature limit value is set using an external inexpensive resistor (trip point resistor). The free-drain output monitors the power supply to the processor or other protected device. There is also a separate analog output (10 mV/°C) connected either to a temperature sensor or used in a temperature control loop.

TMP300 allows temperature monitoring without the use of microcontrollers and in a fairly wide range of supply voltages - from 1,8 to 18 V. The analog output allows you to measure temperature with an accuracy of up to 3 degrees, the temperature switch has an accuracy of up to 4 degrees. The temperature range of the device operation is -40... 125°C.

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