STEF12E

批量生产

eFuse ( electronic fuse ) for 12 V line

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  • The STEF12E is an integrated electronic fuse optimized for monitoring output current and input voltage. Connected in series to a 12 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 STEF12E 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 the mechanical fuses, which must be physically replaced after a single event, the Efuse 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 the 5 V power rails is also available with part number STEF05.

    主要特性

    • Continuous current typ. 3.6 A
    • N-channel on-resistance typ. 45 mΩ
    • Enable/fault functions
    • Output clamp voltage typ. 15 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

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
STEF12EPUR DFN10 3X3 Tape And Reel
批⁠量⁠生⁠产
EAR99 CHINA 0.96 / 1k 立即购买 查看供货情况

...的经销商可用性STEF12EPUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2929 1 马上订购
MOUSER WORLDWIDE 3734 1 马上订购

代理商库存报告日期: 2020-04-02

代理商名称

DIGIKEY

库存

2929

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

3734

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-04-02

STEF12EPUR

封装

DFN10 3X3

包装类型

Tape And Reel

Approximate Price (US$)* / Qty

0.96 / 1k

...的经销商可用性STEF12EPUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2929 1 马上订购
MOUSER WORLDWIDE 3734 1 马上订购

代理商库存报告日期: 2020-04-02

代理商名称

DIGIKEY

库存

2929

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

3734

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-04-02

供货状态

批⁠量⁠生⁠产

Budgetary Price (US$)* / Qty

0.96 / 1k

ECCN (US)

EAR99

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

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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**
STEF12EPUR
批量生产
DFN10 3X3 Industrial Ecopack2

STEF12EPUR

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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