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  • The STEF12S is an integrated electronic fuse optimized to monitor 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.
    The 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 a 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 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
    • Gate control pin for reverse current blocking FET (DFN10 package)
    • TSOT23-8L and DFN10 (3x3 mm) packages
    • Latch (STEF12S) or autoretry (STEF12SA) versions

特别推荐

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STEF12S

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
STEF12SAGR
预览
TSOT 8L 工业 Ecopack2
STEF12SAPUR
批量生产
DFN10 3X3 工业 Ecopack2
STEF12SGR
批量生产
TSOT 8L 工业 Ecopack2
STEF12SPUR
批量生产
DFN10 3X3 工业 Ecopack2

STEF12SAGR

Package:

TSOT 8L

Material Declaration**:

Marketing Status

预览

Package

TSOT 8L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STEF12SAPUR

Package:

DFN10 3X3

Material Declaration**:

Marketing Status

批量生产

Package

DFN10 3X3

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

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
STEF12SPUR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel DFN10 3X3 -40 125 CHINA 0.596 / 1k
STEF12SAPUR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel DFN10 3X3 -40 125 CHINA 0.596 / 1k
STEF12SGR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel TSOT 8L -40 125 MALAYSIA 0.576 / 1k
STEF12SAGR 无法联系到经销商,请联系我们的销售办事处
预览
EAR99 NEC Tape And Reel TSOT 8L -40 125 MALAYSIA

STEF12SPUR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.596 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

DFN10 3X3

Operating Temperature (°C)

(最小值)

-40

(最大值)

125

Budgetary Price (US$)* / Qty

0.596 / 1k

Country of Origin

CHINA

STEF12SAPUR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.596 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

DFN10 3X3

Operating Temperature (°C)

(最小值)

-40

(最大值)

125

Budgetary Price (US$)* / Qty

0.596 / 1k

Country of Origin

CHINA

STEF12SGR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.576 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

TSOT 8L

Operating Temperature (°C)

(最小值)

-40

(最大值)

125

Budgetary Price (US$)* / Qty

0.576 / 1k

Country of Origin

MALAYSIA

STEF12SAGR

供货状态

预览

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

TSOT 8L

Operating Temperature (°C)

(最小值)

-40

(最大值)

125

Budgetary Price (US$)* / Qty

Country of Origin

MALAYSIA

(*) 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