STEF05S

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Electronic fuse for 5V line

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Product overview

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.

  • All 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 mΩ Power FET
    • En/fault pin
    • Adjustable slew rate for output voltage
    • TSOT23-8L package
    • Latch (STEF05S) or auto-retry (STEF05SA) versions

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STMicroelectronics - STEF05S

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEF05SGR
Active
TSOT 8L Industrial Ecopack2

STEF05SGR

Package:

TSOT 8L

Material Declaration**:

Marketing Status

Active

Package

TSOT 8L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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.

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STEF05SGR Available at distributors

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Active
EAR99 NEC Tape and Reel TSOT 8L - - MALAYSIA

STEF05SGR Active

Package:
TSOT 8L
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STEF05SGR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

MALAYSIA

Distributor Name

Distributor reported inventory date:

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors