TEMPFET™ | Automotive Low-Side Temperature Switch
The TEMPFET™ devices are temperature protected low-side switches for automotive and industrial applications.
The TEMPFET™ switches can be controlled as any discrete FET, but in addition they implement a temperature protection.
The family offers products from 6.5mOhm to 18mOhm in PG-TO220 and PG-TO263 packages suitable for fast switching applications.
The whole portfolio is qualified and optimized for 24V automotive and industrial applications and established in the market since almost 30 years.
Characteristic for TEMPFET™ devices is the temperature sensor. This sensor is mounted on top of a standard MOSFET. The temperature sensor has the behavior of a thyristor. It fires at overtemperature. In the classic version of the TEMPFET™ the temperature sensor is connected already internally in-between gate and source of the MOSFET. In case of an overtemperature it simply shorts gate and source and hence switches the MOSFET off. The TEMPFET™ family offers a temperature sensor that is externally available. This enables the user of TEMPFET™ on the one hand side to define, how the TEMPFET™ should react at overtemperature, on the other hand it extends the application area for temperature protected FET switches towards fast-switching PWM applications. To ensure short circuit protection for classic TEMPEFT™ devices, the maximum gate to source voltage has to be limited.
Overtemperature, overload and even short-circuit protection can be realized using only one external gate resistor.
The TEMPFET™ family provides a cost-effective solution with a first level of protection thanks to its temperature sensor. The sensor enables a fast switching and flexible temperature response control.
The keys for the success of TEMPFET™ in the automotive market are the operating voltage up to 49V, the switching speed up to 1MHz, the temperature sensor and the overtemperature protection via monitoring the temperature sensor. The TEMPFET™ products provides a reliable solution being in the market since more than 30 years.
The TEMPFET™ family is designed to provide a low-cost protected MOSFET solution for applications that require fast switching times. Depending on the level of protection and diagnosis needed, you can choose the product to satisfy even the most challenging application requirements, especially when reliability, robustness and long life are essential.
The TEMPFET™ devices are temperature protected low-side switches for automotive and industrial applications. The family offers products from 6.5mOhm to 18mOhm in PG-TO220 and PG-TO263 packages suitable for 24V fast switching applications.
24V automotive and industrial applications where a low-cost solution for fast switching applications, or when reliability, robustness and long life are essential.
The TEMPFET™ products provide a reliable solution being in the market since more than 30 years.
In addition, you can be sure, when opting for TEMPFET™, you will find:
- Cost-effective solution with protection
- Operating voltage up to 49V
- Outstanding switching speed up to 1MHz
Various support materials are offered by the Infineon:
- Simulation models
- Application Notes
- User Manual
- Data Sheets