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1-4. Using Thermoflagger™
Place PTC thermistors at locations where heat can be localized and connect them to Thermoflagger™.
When Thermoflagger™ detects abnormal heating, the PTCGOOD pin is driven Low.
When the temperature of a PTC thermistor exceeds its critical temperature,
- Resistance of PTC thermistor increases dramatically.
- Voltage of PTCO pin increases dramatically
(= resistance of PTC thermistor x current of PTCO(constant))
- the voltage at the PTCO pin exceeds a detection threshold.
- the PTCGOOD pin is driven Low.
Basic of Thermoflagger™
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* Thermoflagger™ is a trademark of Toshiba Electronic Devices & Storage Corporation.
* Other company names, product names, and service names may be trademarks of their respective companies.