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样片和购买
解决方案
Documentation
CAD Resources
工具与软件
质量与可靠性
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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

特别推荐

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STEF033

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Symbols

Symbols

Footprints

Footprints

3D model

3D models

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**
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

(**) 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
STEF033AJR Available at 2 distributors

经销商的可用性STEF033AJR

代理商名称
地区 库存 最小订购量 第三方链接
ARROW EUROPE 5000 0 马上订购
MOUSER WORLDWIDE 4950 1 马上订购

代理商库存报告日期: 2020-11-27

代理商名称

ARROW

库存

5000

Min.Order

0

地区

EUROPE 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: 2020-11-27

Buy Direct
批量生产
EAR99 NEC Tape And Reel Flip-Chip 9 - - CHINA 0.5 / 1k
STEF033PUR Available at 2 distributors

经销商的可用性STEF033PUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 341 1 马上订购
Farnell Element14 EUROPE 249 1 马上订购

代理商库存报告日期: 2020-11-27

代理商名称

DIGIKEY

库存

341

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: 2020-11-27

Buy Direct
批量生产
EAR99 NEC Tape And Reel DFN10 3X3 - - CHINA 0.596 / 1k
STEF033JR 无法联系到经销商,请联系我们的销售办事处 Buy Direct
批量生产
EAR99 NEC Tape And Reel Flip-Chip 9 - - CHINA 0.5 / 1k
STEF033APUR 无法联系到经销商,请联系我们的销售办事处 Buy Direct
批量生产
EAR99 NEC Tape And Reel DFN10 3X3 - - CHINA 0.596 / 1k

STEF033AJR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5 / 1k

经销商的可用性STEF033AJR

代理商名称
地区 库存 最小订购量 第三方链接
ARROW EUROPE 5000 0 马上订购
MOUSER WORLDWIDE 4950 1 马上订购

代理商库存报告日期: 2020-11-27

代理商名称

ARROW

库存

5000

Min.Order

0

地区

EUROPE 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: 2020-11-27

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

Flip-Chip 9

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.5 / 1k

Country of Origin

CHINA

STEF033PUR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.596 / 1k

经销商的可用性STEF033PUR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 341 1 马上订购
Farnell Element14 EUROPE 249 1 马上订购

代理商库存报告日期: 2020-11-27

代理商名称

DIGIKEY

库存

341

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: 2020-11-27

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

DFN10 3X3

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.596 / 1k

Country of Origin

CHINA

STEF033JR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.5 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

Flip-Chip 9

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

0.5 / 1k

Country of Origin

CHINA

STEF033APUR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.596 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

DFN10 3X3

Operating Temperature (°C)

(最小值)

-

(最大值)

-

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