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Texas Instruments’ TPS2596xx 2.7V to 19V eFuses for Consumer Appliances

October 31, 2019 by Luke James

Texas Instruments' TPS2596xx family of 2.7V to 19V eFuses provide highly integrated circuit protection and power management in a small package for a range of primarily consumer applications.

Texas Instruments' TPS2596xx series of 2.7V to 19V eFuses feature integrated FET hot-swap devices and act as highly integrated circuit protection and power management solutions in an ultra-small package. 

The devices provide design engineers with multiple protection modes, utilizing very few external components, that can be used in a variety of applications. The devices also act as a robust defense against the likes of overloads, voltage surges, short circuits, and excessive inrush current. Output current limit level can be set with a sole external resistor and voltage drop across the current limit resistor can be measured to deduce an accurate sense of output load. 


TPS2596 series of eFuses by Texas Instruments.

TPS2596xx series of eFuses. Image Credit: Texas Instruments.


Design engineers working on applications with specific inrush current requirements are able to set the output slew rate with a single external capacitator.

Where there is an input overvoltage, internal clamping circuits limit the output to a safe maximum voltage without the need for any external components (TPS25962x variants only). The TPS25963x devices of the TPS2596xx series provide an option to set a user-defined overvoltage cut-off threshold.


eFuse Features

Additional device features include:

  • Immunity to Electrical Fast Transients (IEC 61000-4-4)

  • Adjustable output slew rate control (dVdt)

  • Overtemperature protection (OTP)

  • Fault indication pin (FLT)

  • UL 2367 recognition (pending)

  • IEC 62368 CB certification (pending)

  • Small footprint: 4.91mmx3.9mm SOIC package

  • Operation and junction temperature range: –40°C to +125°C

The TPS2596xx series a wide range of applications and these include consumer-orientated applications such as energy meters, set-top boxes, IP network cameras, refrigerators, dishwashers, washing machines, and dryers. 

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