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  • The STEF12S is an integrated electronic fuse optimized for monitoring the 12 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.
    STEF12S features the adjustable turn-on slew-rate, which is useful to keep the in-rush current under control during startup and hot-swap operations.
    On the DFN10 package a dedicated pin provides gate control for an external optional N-channel power FET, used to implement the reverse current blocking in case of input voltage loss.
    The STEF05S is a companion chip for the 5 V rails, useful to implement a complete power rail control in data-storage applications.

    主要特性

    • 15 V typical output over voltage clamp
    • Absolute maximum voltage of 25 V
    • Adjustable current limit
    • Thermal protection
    • Input under voltage lockout
    • Low inrush current during Start-Up
    • Integrated 40 mΩ Power FET
    • En/fault pin
    • Adjustable slew rate for output voltage
    • Gate control pin for reverse current blocking FET (DFN10 package)
    • TSOT23-8L and DFN10 (3x3 mm) packages
    • Latch (STEF12S) or auto-retry (STEF12SA) versions

样片和购买

产品型号
封装
包装类型
供货状态
ECCN (US)
Country of Origin
Approximate Price (US$)* / Qty
从ST订购
从分销商订购
STEF12SPUR DFN10 3X3 Tape And Reel
批⁠量⁠生⁠产
EAR99 - 1.44 没有经销商,请联系我们的销售办事处
STEF12SGR TSOT 8L Tape And Reel
批⁠量⁠生⁠产
EAR99 - 0.95 没有经销商,请联系我们的销售办事处
STEF12SAGR TSOT 8L Tape And Reel
预览
EAR99 - 没有经销商,请联系我们的销售办事处

STEF12SPUR

封装

DFN10 3X3

包装类型

Tape And Reel

Approximate Price (US$)* / Qty

1.44

供货状态

批⁠量⁠生⁠产

Budgetary Price (US$)* / Qty

1.44

ECCN (US)

EAR99

Country of Origin

-

STEF12SGR

封装

TSOT 8L

包装类型

Tape And Reel

Approximate Price (US$)* / Qty

0.95

供货状态

批⁠量⁠生⁠产

Budgetary Price (US$)* / Qty

0.95

ECCN (US)

EAR99

Country of Origin

-

STEF12SAGR

封装

TSOT 8L

包装类型

Tape And Reel

Approximate Price (US$)* / Qty

供货状态

预览

Budgetary Price (US$)* / Qty

ECCN (US)

EAR99

Country of Origin

-

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
STEF12SAGR
预览
TSOT 8L Industrial Ecopack2
STEF12SGR
批量生产
TSOT 8L Industrial Ecopack2
STEF12SPUR
批量生产
DFN10 3X3 Industrial Ecopack2

STEF12SAGR

Package:

TSOT 8L

Material Declaration**:

Marketing Status

预览

Package

TSOT 8L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STEF12SGR

Package:

TSOT 8L

Material Declaration**:

Marketing Status

批量生产

Package

TSOT 8L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STEF12SPUR

Package:

DFN10 3X3

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

DFN10 3X3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

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