The STEVAL-IFP021V1 demonstration board is based on the STEF05 and STEF12 electronic fuses (E-Fuses).
It is designed to help users evaluate the benefit of the complete protection offered by the E-Fuse family and to customize their own application.
The E-Fuse family of hot-swap converters is designed to replace the mechanical fuses on low voltage power lines.
The STEF05 and STEF12 are integrated electronic fuses optimized for monitoring output current and input voltage.
Connected in series to the 5 V/12 V rails, they are capable of protecting the electronic circuitry on the output from overcurrent and overvoltage.
The turn-on time is programmable by means of an external capacitor, allowing control of the inrush current at startup and during hot-swaps.
When an overload condition occurs, the E-Fuse limits the output current to a predefined safe value. If the anomalous overload condition persists, it goes into an open state, disconnecting the load from the power supply.
If a continuous short-circuit is present on the board, when power is re-applied the E-Fuse initially limits the output current to a safe value, and then again goes into an open state.
Both devices are equipped with a thermal protection circuit.
The intervention of the thermal protection is signaled to the board monitoring circuits through a signal on the enable/fault pin that can be connected to other parts belonging to the same family to cause a simultaneous shutdown during failure events.
Unlike mechanical fuses, which must be physically replaced after a single event, E-Fuses do not degrade in their performance after short-circuit/thermal protection interventions and can be reset either by re-cycling the supply voltage or by using the enable pin.
|DB1521: 5 V and 12 V power line protection based on STEF05 and STEF12 electronic fuses||1.1||164 KB|
|AN4069: 5 V and 12 V power line protection based on STEF05 and STEF12 electronic fuses||1.1||807 KB|
|STEVAL-IFP021V1 gerber files||3.1||112 KB|
|STEVAL-IFP021V1 BOM||2.1||39 KB|
|STEVAL-IFP021V1 schematics||1.0||23 KB|
|Products and solutions for Smart industry||3.0||3 MB|
|Evaluation products license agreement||1.4||128 KB|
|型号||Core Product||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|STEVAL-IFP021V1||STEF05; STEF12||Active : Product is in volume production||50||1||NEC||EAR99||ITALY||MORE INFO||DISTRIBUTOR AVAILABILITY|
|型号||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.