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质量与可靠性
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  • The STEF4S is an integrated electronic fuse optimized for monitoring the output current and the input voltage. It can be connected in series to 3.3 V or 5 V rails, protecting the electronic circuitry on its output from overcurrent and overvoltage. The operating mode (5 V or 3.3 V) can be selected by a dedicated pin. The STEF4S has a controlled turn-on time, adjustable by an external capacitor. When an overload condition occurs the device limits the output current to a predefined safe value. If the anomalous overload condition persists it goes into an open state, disconnecting the load from the power supply. If a continuous short-circuit is present on the board, the E-fuse limits the output current to a safe value.

    In case of overvoltage on the input, the device clamps the output voltage to a predefined value and protects the load.
    If the anomalous fault condition persists, the internal thermal protection circuit shuts down the device and then automatically attempts to re-supply the load until the fault condition is removed.
    Unlike mechanical fuses, which must be physically replaced after a single event, the E-fuse does not degrade in its performance after short-circuit/thermal protection interventions.

    主要特性

    • Power MOSFET on-resistance (typ.): 40 mΩ
    • Enable function
    • Output clamp voltage (typ.): 5.7 V in 5 V mode, and 3.8 V in 3.3 V mode
    • Undervoltage lockout
    • Short-circuit limit
    • Overload foldback current limit
    • Controlled soft-start
    • Thermal auto-retry
    • Internal sensing FET
    • Operative temp. range: - 40 °C to 85 °C
    • Available in DFN 3x3 10L package
    • Hard disk drives
    • Solid state drives (SSD)
    • Hard disk and SSD arrays
    • Set-top boxes
    • DVD and blu-ray disc drivers

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - STEF4S

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**
STEF4SPUR
批量生产
DFN10 3X3 工业 Ecopack2

STEF4SPUR

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
STEF4SPUR Available at 3 distributors

经销商的可用性STEF4SPUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 4463 1 马上订购
MOUSER WORLDWIDE 3767 1 马上订购
Farnell Element14 EUROPE 217 1 马上订购

代理商库存报告日期: 2020-11-29

代理商名称

DIGIKEY

库存

4463

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

3767

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

217

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-11-29

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel DFN10 3X3 - - CHINA 0.954 / 1k

STEF4SPUR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.954 / 1k

经销商的可用性STEF4SPUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 4463 1 马上订购
MOUSER WORLDWIDE 3767 1 马上订购
Farnell Element14 EUROPE 217 1 马上订购

代理商库存报告日期: 2020-11-29

代理商名称

DIGIKEY

库存

4463

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

3767

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

217

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-11-29

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

DFN10 3X3

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.954 / 1k

Country of Origin

CHINA

(*) 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