STEVAL-EFUSE01 STMicroelectronics

STEVAL-EFUSE01 Data brief Evaluation board based on the STEF01 fully programmable universal electronic fuse 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 slew rate control OUT 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 RAEE II) Applications Hot-swap boards Electronic circuit breakers Distributed power systems Industrial automation White goods/appliances Telecom power modules Product summary Evaluation board based on STEF01 Description fully programmable STEVAL-EFUSE01 The electronic fuses (E-fuses) are integrated circuit protections that can replace universal electronic fuse conventional fuses or other discrete protection devices. 8 V to 48 V fully The STEVAL-EFUSE01 allows full evaluation of the STEF01 E-fuse and is designed programmable to help you test and develop a power path protection to the system. STEF01 universal electronic The STEF01 E-fuse integrates a control circuit and a low on-resistance MOSFET fuse 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 capacitor. dv/dt 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. DB3920 - Rev 1 - May 2019 www.st.com For further information contact your local STMicroelectronics sales office.STEVAL-EFUSE01 STEVAL-EFUSE01 components 1 STEVAL-EFUSE01 components The STEVAL-EFUSE01 evaluation board can be set up through the mechanical trimmers and others passive components to match the application protection requirements: TR1 mechanical trimmer for the undervoltage lockout threshold setup (R3 and RL resistors must be mounted) TR2 mechanical trimmer for the overload current limit trip point setup (R4 must be mounted and R must LIM be removed) TR3 mechanical trimmer for clamping voltage threshold setup (R5 and R2 resistors must be mounted) C capacitor for soft start ramp setup dv/dt M1 MOSFET to implement reverse current feature M2 MOSFET to enable/disable the device T PG POWER GOOD test point CN4 thermal latch or auto-retry thermal protection modes jumper configuration Figure 1. STEVAL-EFUSE top side components DB3920 - Rev 1 page 2/5