描述 Description

The STEF05S is an integrated electronic fuse optimized for monitoring the 5 V DC power lines.

When connected in series to the main power rail, it is able to precisely detect and react to overcurrent and overvoltage conditions.

When an overload condition occurs, the device limits the output current to a safe value defined by the user. If the anomalous overload condition persists, the device goes into an open state, disconnecting the load from the power supply.

In case of overvoltage on the input, the device regulates the output to a preset safe value.

Undervoltage lockout prevents the load from malfunction, keeping the device off if the rail voltage is too low.

The STEF05S features the adjustable turn-on slew rate, which is useful to keep the inrush current under control during startup and hot-swap operations.

The STEF12S is a companion chip for the 12 V rails, useful to implement a complete power rail control in data-storage applications.

特性 Features

? 5.7 V typical output overvoltage clamp
? Absolute maximum voltage of 25 V
? Adjustable current limit
? Thermal protection
? Input undervoltage lockout
? Low inrush current during startup
? Integrated 40 m? Power FET
? En/fault pin
? Adjustable slew rate for output voltage
? TSOT23-8L package
? Latch (STEF05S) or auto-retry (STEF05SA) versions

簡(jiǎn)介

STEF05S屬于集成電路（IC）的電流調(diào)節(jié)/管理。由制造生產(chǎn)的STEF05S電流調(diào)節(jié)/管理電流調(diào)節(jié)和管理 IC 是用于監(jiān)視和調(diào)節(jié)電路電流的半導(dǎo)體器件。功能包括電流表、限流、電流鏡、電流監(jiān)控器、電流調(diào)節(jié)器、電流紋波抑制器、電流檢測(cè)、電流源、電流開關(guān)和電子保險(xiǎn)絲，電流輸出從 100 μA 至 50 A 可調(diào)。