eFuse ( electronic fuse ) for 5 V line

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  • The STEF05L is an integrated electronic fuse optimized for monitoring output current and the input voltage. Connected in series to the 5 V rail, it is able to protect the electronic circuitry on its output from overcurrent and overvoltage. The STEF05L 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 Efuse 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 STEF05L is also available in an autoretry 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.): 6.1 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 (3 x 3 mm) 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
STEF05LAPUR DFN10 3X3 Tape And Reel
Active
0.596 10000 EAR99 CHINA No availability of distributors reported, please contact our sales office
STEF05LAJR Flip-Chip 9 Tape And Reel
Active
0.596 10000 EAR99 CHINA No availability of distributors reported, please contact our sales office
STEF05LJR Flip-Chip 9 Tape And Reel
Active
0.596 10000 EAR99 CHINA No availability of distributors reported, please contact our sales office 立即购买
STEF05LPUR DFN10 3X3 Tape And Reel
Active
0.596 10000 EAR99 CHINA 查看供货情况

Distributor availability ofSTEF05LPUR

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 85 1 Order Now

代理商库存报告日期: 2019-08-21

代理商名称

MOUSER

库存

85

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-08-21

Get sample

STEF05LAPUR

封装

DFN10 3X3

包装类型

Tape And Reel

Unit Price (US$)

0.596*

供货状态

Active

Unit Price (US$)

0.596

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

STEF05LAJR

封装

Flip-Chip 9

包装类型

Tape And Reel

Unit Price (US$)

0.596*

供货状态

Active

Unit Price (US$)

0.596

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

STEF05LJR

封装

Flip-Chip 9

包装类型

Tape And Reel

Unit Price (US$)

0.596*

供货状态

Active

Unit Price (US$)

0.596

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

STEF05LPUR

封装

DFN10 3X3

包装类型

Tape And Reel

Unit Price (US$)

0.596*

Distributor availability ofSTEF05LPUR

代理商名称
地区 库存 最小订购量 Third party link
MOUSER WORLDWIDE 85 1 Order Now

代理商库存报告日期: 2019-08-21

代理商名称

MOUSER

库存

85

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-08-21

供货状态

Active

Unit Price (US$)

0.596

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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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**
STEF05LAJR
Active
Flip-Chip 9 工业 Ecopack2
STEF05LAPUR
Active
DFN10 3X3 工业 Ecopack2
STEF05LJR
Active
Flip-Chip 9 工业 Ecopack2
STEF05LPUR
Active
DFN10 3X3 工业 Ecopack2

STEF05LAJR

Package:

Flip-Chip 9

Material Declaration**:

Marketing Status

Active

Package

Flip-Chip 9

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STEF05LAPUR

Package:

DFN10 3X3

Material Declaration**:

Marketing Status

Active

Package

DFN10 3X3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STEF05LJR

Package:

Flip-Chip 9

Material Declaration**:

Marketing Status

Active

Package

Flip-Chip 9

Grade

Industrial

RoHS Compliance Grade

Ecopack2

STEF05LPUR

Package:

DFN10 3X3

Material Declaration**:

Marketing Status

Active

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.