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
预算价格(US$)
数量
ECCN (US)
Country of Origin
从分销商订购
从ST订购
STEF12EPUR DFN10 3X3 Tape And Reel
批量生产
0.596 10000 EAR99 CHINA 查看供货情况

Distributor availability ofSTEF12EPUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2974 1 Order Now
MOUSER WORLDWIDE 3757 1 Order Now

代理商库存报告日期: 2019-12-10

代理商名称

DIGIKEY

库存

2974

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

3757

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-10

立即购买

STEF12EPUR

封装

DFN10 3X3

包装类型

Tape And Reel

单价(US$)

0.596*

Distributor availability ofSTEF12EPUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2974 1 Order Now
MOUSER WORLDWIDE 3757 1 Order Now

代理商库存报告日期: 2019-12-10

代理商名称

DIGIKEY

库存

2974

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

3757

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-10

供货状态

批量生产

单价(US$)

0.596

数量

10000

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 Material Declaration**
STEF12EPUR
批量生产
DFN10 3X3 工业 Ecopack2

STEF12EPUR

Package:

DFN10 3X3

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

DFN10 3X3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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