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Power up of semiconductor device having a temperature circuit and method therefor

  • US 9,933,317 B2
  • Filed: 11/11/2015
  • Issued: 04/03/2018
  • Est. Priority Date: 03/28/2014
  • Status: Active Grant
First Claim
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1. A method of operating a semiconductor device having a temperature circuit that provides a temperature window comprising the steps of:

  • initializing the temperature circuit to provide a first temperature window from a plurality of temperature windows in response to transitioning a power supply from a first potential to a second potential;

    by operation of detecting circuits on the semiconductor device, detecting if a temperature of the semiconductor device is outside of the first temperature window; and

    if the semiconductor device temperature is outside of the first temperature window, adjusting the temperature circuit to provide a second temperature window from the plurality of temperature windows that includes the device temperature;

    whereinthe first temperature window has an adjacent lower temperature window and an adjacent higher temperature window in the plurality of temperature windows.

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