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Evaluation board based on STEF01 fully programmable universal electronic fuse

STEVAL-EFUSE01

Overview

The electronic fuses (E-fuses) are integrated circuit protections that can replace conventional fuses or other discrete protection devices.

The STEVAL-EFUSE01 allows full evaluation of the STEF01 E-fuse and is designed to help you test and develop a power path protection to the system.
The STEF01 E-fuse integrates a control circuit and a low on-resistance MOSFET switch and provides a full set of protections, including overcurrent, overvoltage and inrush current. You can adjust UVLO threshold, clamping voltage and overload current limits through mechanical trimmers.
An external MOSFET, driven by the STEF01 gate driver pin, can be mounted to implement a reverse-current blocking circuit. The inrush current can be controlled by the output voltage ramp rate, with the dedicated soft start circuit embedded in the STEF01 device. The STEVAL-EFUSE01 evaluation board lets you easily adjust the output voltage ramp rate at the desired startup time, by changing the C_dv/dt capacitor.
As most applications require a flag to signal that the output voltage is in the correct range, the STEVAL-EFUSE01 features a PG test point for information about the voltage drop on the pass element.
The STEVAL-EFUSE01 also features thermal latch and auto-retry thermal protection modes, selectable through a dedicated jumper configuration.

Main features

Input voltage from 8 to 48 V
Peak output current up to 6 A
Enable/Disable/Fault flag pin
Adjustable undervoltage lockout
Adjustable output voltage clamp
Programmable V_OUT slew rate control

Latch or auto-retry jumper-programmable thermal protection
Power good monitoring flag
Drives an optional external reverse current protection MOSFET
CE certified
RoHS and China RoHS compliant
WEEE compliant (2012/19/UE WEEE II)

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-20 10:53:55

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