eFuse ( electronic fuse ) for 3.3 V line

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  • The STEF033 is an integrated electronic fuse optimized for monitoring output current and the input voltage. Connected in series to the 3.3 V rail, it is able to protect the electronic circuitry on its output from overcurrent and overvoltage. The STEF033 has controlled delay and turn-on time. 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, when the power is re-applied the E-fuse initially limits the output current to a safe value and then goes again into the open state. The voltage clamping circuit prevents the output voltage from exceeding a fixed value, if the input voltage goes beyond this threshold. The device is equipped with a thermal protection circuit. Intervention of thermal protection is signaled to the board-monitoring circuits through an appropriate 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 performances following short-circuit/thermal protection intervention and is reset either by re-cycling the supply voltage or using the appropriate Enable pin. The STEF033 is also available in an auto-retry version; in case of thermal fault it automatically attempts to re-apply power to the load when the die temperature returns to a safe value.

    主要特性

    • Continuous current typ.: 3.6 A (DFN), 2.5 A (Flip Chip)
    • N-channel on resistance (typ): 40 mΩ (DFN), 25 mΩ (Flip Chip)
    • Enable/Fault functions
    • Output clamp voltage (typ): 4.5 V
    • Undervoltage lockout
    • Short-circuit limit
    • Overload current limit
    • Controlled output voltage ramp
    • Thermal latch (typ): 160 °C
    • Uses tiny capacitors
    • Latching and auto-retry versions
    • Operative junction temp. - 40 °C to 125 °C
    • Available in DFN10 3x3 and Flip Chip 9 bumps

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
STEF033AJR Flip-Chip 9 Tape And Reel
批量生产
- EAR99 CHINA 查看供货情况

Distributor availability ofSTEF033AJR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 5000 1 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 4950 1 Order Now

代理商库存报告日期: 2019-12-09

代理商名称

DIGIKEY

库存

5000

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

5000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

4950

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-09

立即购买
STEF033PUR DFN10 3X3 Tape And Reel
批量生产
0.596 10000 EAR99 CHINA 查看供货情况

Distributor availability ofSTEF033PUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 972 1 Order Now
Farnell Element14 EUROPE 245 1 Order Now

代理商库存报告日期: 2019-12-09

代理商名称

DIGIKEY

库存

972

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

245

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-09

获取样片
STEF033JR Flip-Chip 9 Tape And Reel
批量生产
- EAR99 CHINA 查看供货情况

Distributor availability ofSTEF033JR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2000 1 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 2000 1 Order Now

代理商库存报告日期: 2019-12-09

代理商名称

DIGIKEY

库存

2000

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

5000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

2000

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-09

立即购买
STEF033APUR DFN10 3X3 Tape And Reel
批量生产
0.596 10000 EAR99 CHINA 没有经销商,请联系我们的销售办事处 立即购买

STEF033AJR

封装

Flip-Chip 9

包装类型

Tape And Reel

单价(US$)

*

Distributor availability ofSTEF033AJR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 5000 1 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 4950 1 Order Now

代理商库存报告日期: 2019-12-09

代理商名称

DIGIKEY

库存

5000

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

5000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

4950

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-09

供货状态

批量生产

单价(US$)

-

数量

-

ECCN (US)

EAR99

Country of Origin

CHINA

STEF033PUR

封装

DFN10 3X3

包装类型

Tape And Reel

单价(US$)

0.596*

Distributor availability ofSTEF033PUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 972 1 Order Now
Farnell Element14 EUROPE 245 1 Order Now

代理商库存报告日期: 2019-12-09

代理商名称

DIGIKEY

库存

972

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

245

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-09

供货状态

批量生产

单价(US$)

0.596

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

STEF033JR

封装

Flip-Chip 9

包装类型

Tape And Reel

单价(US$)

*

Distributor availability ofSTEF033JR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2000 1 Order Now
ARROW EUROPE 5000 0 Order Now
MOUSER WORLDWIDE 2000 1 Order Now

代理商库存报告日期: 2019-12-09

代理商名称

DIGIKEY

库存

2000

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

5000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

2000

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-12-09

供货状态

批量生产

单价(US$)

-

数量

-

ECCN (US)

EAR99

Country of Origin

CHINA

STEF033APUR

封装

DFN10 3X3

包装类型

Tape And Reel

单价(US$)

0.596*

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**
STEF033AJR
批量生产
Flip-Chip 9 工业 Ecopack2
STEF033APUR
批量生产
DFN10 3X3 工业 Ecopack2
STEF033JR
批量生产
Flip-Chip 9 工业 Ecopack2
STEF033PUR
批量生产
DFN10 3X3 工业 Ecopack2

STEF033AJR

Package:

Flip-Chip 9

Material Declaration**:

Marketing Status

批量生产

Package

Flip-Chip 9

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STEF033APUR

Package:

DFN10 3X3

Material Declaration**:

Marketing Status

批量生产

Package

DFN10 3X3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STEF033JR

Package:

Flip-Chip 9

Material Declaration**:

Marketing Status

批量生产

Package

Flip-Chip 9

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STEF033PUR

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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