STEF033

批量生产

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
ECCN (US)
Country of Origin
Approximate Price (US$)* / Qty
从ST订购
从分销商订购
STEF033AJR Flip-Chip 9 Tape And Reel
批⁠量⁠生⁠产
EAR99 CHINA 0.83 立即购买 查看供货情况

...的经销商可用性STEF033AJR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 5000 1 马上订购
MOUSER WORLDWIDE 4950 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

5000

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

4950

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-04-02

STEF033PUR 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STEF033PUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 972 1 马上订购
Farnell Element14 EUROPE 249 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

972

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

249

Min.Order

1

地区

EUROPE 马上订购

代理商库存报告日期: 2020-04-02

STEF033JR Flip-Chip 9 Tape And Reel
批⁠量⁠生⁠产
EAR99 CHINA 0.83 立即购买 查看供货情况

...的经销商可用性STEF033JR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 1995 1 马上订购
MOUSER WORLDWIDE 2000 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

1995

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

2000

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2020-04-02

STEF033APUR DFN10 3X3 Tape And Reel
批⁠量⁠生⁠产
EAR99 CHINA 0.95 / 1k 立即购买 没有经销商,请联系我们的销售办事处

STEF033AJR

封装

Flip-Chip 9

包装类型

Tape And Reel

Approximate Price (US$)* / Qty

0.83

...的经销商可用性STEF033AJR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 5000 1 马上订购
MOUSER WORLDWIDE 4950 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

5000

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

4950

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

0.83

ECCN (US)

EAR99

Country of Origin

CHINA

STEF033PUR

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STEF033PUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 972 1 马上订购
Farnell Element14 EUROPE 249 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

972

Min.Order

1

地区

WORLDWIDE 马上订购

Farnell Element14

库存

249

Min.Order

1

地区

EUROPE 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

STEF033JR

封装

Flip-Chip 9

包装类型

Tape And Reel

Approximate Price (US$)* / Qty

0.83

...的经销商可用性STEF033JR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 1995 1 马上订购
MOUSER WORLDWIDE 2000 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

1995

Min.Order

1

地区

WORLDWIDE 马上订购

MOUSER

库存

2000

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

0.83

ECCN (US)

EAR99

Country of Origin

CHINA

STEF033APUR

封装

DFN10 3X3

包装类型

Tape And Reel

Approximate Price (US$)* / Qty

0.95 / 1k

供货状态

批⁠量⁠生⁠产

Budgetary Price (US$)* / Qty

0.95 / 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**
STEF033AJR
批量生产
Flip-Chip 9 Industrial Ecopack2
STEF033APUR
批量生产
DFN10 3X3 Industrial Ecopack2
STEF033JR
批量生产
Flip-Chip 9 Industrial Ecopack2
STEF033PUR
批量生产
DFN10 3X3 Industrial 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

(**) 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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