Semiconductor device having variable parameter selection based on temperature and test method
First Claim
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1. An apparatus comprising a temperature-sensing circuit, the temperature-sensing circuit comprising:
- an amplifier including a positive input and a negative input, wherein the negative input is configured to be driven by a temperature-independent signal;
a first transistor electrically connected to the positive input, wherein the first transistor is configured to be controlled by a temperature signal;
a temperature threshold resistance and a hysteresis resistance, wherein the temperature threshold resistance and the hysteresis resistance are electrically connected in series to the positive input; and
a second transistor electrically connected in parallel with the hysteresis resistance.
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Abstract
An apparatus including a temperature-sensing circuit. The temperature-sensing circuit can include an amplifier. The amplifier can include a positive input and a negative input. The negative input can be configured to be driven by a temperature-independent signal. A first transistor electrically can be connected to the positive input. The first transistor can be configured to be controlled by a temperature signal. A temperature threshold resistance and a hysteresis resistance can be electrically connected in series to the positive input. A second transistor can be electrically connected in parallel with the hysteresis resistance.
106 Citations
22 Claims
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1. An apparatus comprising a temperature-sensing circuit, the temperature-sensing circuit comprising:
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an amplifier including a positive input and a negative input, wherein the negative input is configured to be driven by a temperature-independent signal; a first transistor electrically connected to the positive input, wherein the first transistor is configured to be controlled by a temperature signal; a temperature threshold resistance and a hysteresis resistance, wherein the temperature threshold resistance and the hysteresis resistance are electrically connected in series to the positive input; and a second transistor electrically connected in parallel with the hysteresis resistance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of sensing a temperature, the method comprising:
amplifying a positive input and a negative input with an amplifier, wherein the negative input is a temperature-independent signal and the positive input is provided by; a first transistor configured to be controlled by a temperature signal indicative of the temperature; and a temperature threshold resistance and a hysteresis resistance electrically connected in series, wherein a second transistor is electrically connected in parallel with the hysteresis resistance. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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sensing a temperature with a temperature-sensing circuit configured to provide a temperature indication based on a hysteresis value defined by a hysteresis resistance, wherein the temperature indication comprises a temperature indication logic level; and shunting the hysteresis resistance based on the temperature indication logic level. - View Dependent Claims (20, 21, 22)
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Specification