-
My ToshibaSemicon
- General Top View
-
SEMICONDUCTOR View
-
ApplicationsAutomotive
Body Electronics
xEV
In-Vehicle Infotainment
Advanced Driver-Assistance Systems (ADAS)
Chassis
IndustrialInfrastructure
BEMS/HEMS
Factory Automation
Commercial Equipment
Consumer/PersonalIoT Equipment
Healthcare
Wearable Device
Mobile
Computer Peripherals
-
Products
Products
-
Design & Development
-
Knowledge
Knowledge
- Where To Buy View
-
My ToshibaSemicon
-
- STORAGE View
- COMPANY View
- Part Number Search
- Cross Reference Search
- Keyword Search
- Parametric Search
- Stock Check & Purchase
This webpage doesn't work with Internet Explorer. Please use the latest version of Google Chrome, Microsoft Edge, Mozilla Firefox or Safari.
require 3 characters or more.
The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.
require 3 characters or more.
Basic operations of Thermoflagger™
Thermoflagger™ supplies a small constant current to PTC thermistors to detect changes in their resistance (temperature).
The left-hand figure shows the internal block diagram of Thermoflagger™. It consists of a constant-current source, a reference voltage source, a comparator, and a FLAG output function.
Next, we will briefly explain how it works.
When temperature is low, PTC thermistors have relatively small resistance. Therefore, the voltage at the PTCO pin is low. At this time, the PTCGOOD pin is driven High.
When the temperature of a PTC thermistor increases and reaches the critical temperature, its resistance increases dramatically, causing the voltage at the PTCO pin to increase. At this time, the PTCGOOD pin is driven Low.
As shown in this figure, you can easily create an overtemperature detection circuit by combining Thermoflagger™ and PTC thermistors.
Basic of Thermoflagger™
Related information
- Product Web Page
- Applidcation Notes
- Catalog
- Parametric searches for all Toshiba Thermoflagger™ products are available here
- Stock Check & Purchase Toshiba Thermoflagger™ here
* 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.