What is an IPD (Intelligent Power Device)?

IPD is an abbreviation for Intelligent Power Device. It has not only a switch function that controls the power supply to loads such as resistive loads and inductive loads, but also a protection function and diagnostic function for various failures.

Why are IPDs used?

MOSFETs are commonly used as semiconductor switches. Using a single MOSFET as a switch will cause the MOSFET to fail if the load is shorted in the component circuit. On the other hand, IPDs have built-in protection circuits against overcurrent and overheating, as well as circuits that absorb the energy of inductive loads, so they do not fail even in abnormal conditions such as short circuits, and can maintain their function as switches. In the case of other failures, the diagnosis function provides feedback to the microcomputer, etc., and it is possible to set arbitrarily switch ON / OFF control.

Grade 0 compatible high-side switch compatible with all electrical components.

This article introduces Infineon's PROFET™ +2 series of high-side switches that can be used for all electrical components. The latest technology in the PROFET™ family introduced this time is applied, and the thermal budget is expanded to support the first automotive grade 0 on the market, so partitioning of higher resistance components can be performed at higher PCB temperatures. It has the advantage of being able to

In addition, this product has a longer product life than the PROFET™+2 12V Grade1, which has been in the lineup, and is a product that can meet the requirements of expanded mission profiles. We have a total of 6 products with different on-resistances from 4.4mΩ to 20.9mΩ in a TSDSO-14 package for consideration in severe high temperature environments and various applications. Both 1ch and 2ch products are available in the same package, so there is also the advantage that you can easily consider replacement evaluation of products with different on-resistances.

Product features

• High-side switch with diagnostic and protection functions
• Low power ReverseON function in reverse connection condition
• Convenience for considering replacement of products with different on-resistance by unifying the TSDSO-14 package
• In addition to meeting AEC-Q100, qualified according to the stricter Grade 0
• Maximum operating temperature: TJ, max = 175°C
• Current Sense mechanism enables monitoring of load current
• Equipped with two types of overheating protection functions: Absolute and Dynamic
• Low power InverseON function in reverse current state
• Current Trip/Restart function*
• Operating voltage range up to 3.1V (cranking)

*Current Trip: When overloaded, the return operation is controlled by the IN pin and DEN pin after the output is shut down.

Current Restart: During overload, after output shutdown, restart operation automatically after reaching the restart condition (retry operation up to the specified number of times)

What is PROFET™

The PROFET™ (PROtected FET) family is Infineon's proprietary name for highly integrated high-side switches with many smart features such as diagnostics and protection. The intelligent PROFET™ power high-side switch consists of a DMOS power transistor and CMOS logic with all necessary protection functions inside, e.g. overload, overheating, short circuit, etc., for all automotive and industrial applications. It has a built-in protection function suitable for Infineon has released the PROFET™ series since 1993, and has established itself as a market leader in the world.

Product lineup

Target application

• transmission
• Powertrain application
• High temperature under the hood applications
• power distribution

Related information

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