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  • The STEF05 is an integrated electronic fuse optimized for monitoring output current and input voltage. Connected in series to a 5 V rail, it is capable of protecting the electronic circuitry on its output from overcurrent and overvoltage. The device has a controlled delay and turn-on time. When an overload condition occurs, the STEF05 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, when power is re-applied the E-fuse initially limits the output current to a safe value, and then again goes into an open state. The device is equipped with a thermal protection circuit. The intervention of the thermal protection is signalled to the board monitoring circuits through a signal on the Fault pin. 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 and it is reset either by recycling the supply voltage or using the Enable pin. The companion chip for 12 V power rails is also available with part number STEF12.

    主要特性

    • Continuous current (typ): 3.6 A
    • N-channel on-resistance (typ): 40 mΩ
    • Enable/Fault functions
    • Output clamp voltage (typ): 6.65 V
    • Undervoltage lockout
    • Short-circuit limit
    • Overload current limit
    • Controlled output voltage ramp
    • Thermal latch (typ): 165 °C
    • Uses tiny capacitors
    • Operating junction temp. - 40 °C to 125 °C
    • Available in DFN10 (3x3 mm) package

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评估工具

    • 产品型号

      基于STEF05和STEF12电子熔断器的5 V和12 V电力线保护

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技术文档

    • 描述 版本 文档大小 操作
      DS7314
      Electronic fuse for 5 V line
      5.0
      1.29 MB
      PDF
      DS7314

      Electronic fuse for 5 V line

    • 描述 版本 文档大小 操作
      AN4069
      5 V and 12 V power line protection based on STEF05 and STEF12 electronic fuses
      1.1
      807.4 KB
      PDF
      AN4069

      5 V and 12 V power line protection based on STEF05 and STEF12 electronic fuses

    • 描述 版本 文档大小 操作
      AN4069
      5 V and 12 V power line protection based on STEF05 and STEF12 electronic fuses
      1.1
      807.4 KB
      PDF
      AN4069

      5 V and 12 V power line protection based on STEF05 and STEF12 electronic fuses

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      Linear and Switching Voltage Regulators Selection Guide 3.0
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      Linear and Switching Voltage Regulators Selection Guide

    • 描述 版本 文档大小 操作
      electronic Fuse quick Reference Guide 1.1
      989.09 KB
      PDF

      electronic Fuse quick Reference Guide

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**
STEF05PUR
批量生产
DFN10 3X3 工业 Ecopack2

STEF05PUR

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
STEF05PUR Available at 2 distributors

...的经销商可用性STEF05PUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 4985 1 马上订购
MOUSER WORLDWIDE 4781 1 马上订购

代理商库存报告日期: 2020-08-13

代理商名称

DIGIKEY

库存

4985

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

4781

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-08-13

样片和购买 立即购买
批量生产
EAR99 NEC Tape And Reel DFN10 3X3 -40 125 CHINA 0.596 / 1k

STEF05PUR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.596 / 1k

...的经销商可用性STEF05PUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 4985 1 马上订购
MOUSER WORLDWIDE 4781 1 马上订购

代理商库存报告日期: 2020-08-13

代理商名称

DIGIKEY

库存

4985

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

4781

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-08-13

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

(*) 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