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.
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.
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.