Temperature sensing device and temperature-voltage converter

Abstract

A temperature sensing device includes a temperature-voltage converter that outputs a first voltage, having a zero temperature coefficient that does not vary with a temperature, and a second voltage having a negative temperature coefficient varying in inverse proportion to the temperature. A multiplexer alternately outputs the first voltage and the second voltage depending on a transition signal. Atemperature sensor alternately receives the first voltage and the second voltage and senses the temperature depending on a ratio of the first voltage and the second voltage.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Korean Patent Application No. 10-2018-0008820 filed in the Korean Intellectual Property Office on Jan. 24, 2018, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] Embodiments of the disclosure described herein relate to electronic devices, and more particularly, to temperature sensing devices. Background technique [0004] With the development of semiconductor manufacturing technology, the degree of integration of semiconductor devices is increasing. With the integration of semiconductor devices, the heat generated during the operation of the semiconductor devices may degrade the performance of the semiconductor devices or damage the semiconductor devices. [0005] In order to prevent the heat, a method of sensing the heat of the semiconductor device and adjusting the availability of the semiconductor device is being developed. A ...

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Problems solved by technology

Traditional temperature sensing devices are not suitable for low power

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