STEF05L

Active
Design Win

Electronic fuse for 5 V line

Download datasheet Order Direct
Overview
Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Get Started
Partner products
Sales Briefcase

Product overview

Description

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 eFuse 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.

  • All features

    • 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

EDA Symbols, Footprints and 3D Models

STMicroelectronics - STEF05L

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEF05LAJR
NRND
CSP P 0.4 mm Industrial Ecopack2
STEF05LAPUR
Active
DFN10 3X3 Industrial Ecopack2
STEF05LJR
NRND
CSP P 0.4 mm Industrial Ecopack2
STEF05LPUR
Active
DFN10 3X3 Industrial Ecopack2

STEF05LAJR

Package:

CSP P 0.4 mm

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

CSP P 0.4 mm

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:

CSP P 0.4 mm

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

CSP P 0.4 mm

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.

Sample & Buy

Swipe or click the button to explore more details Don't show this again
Part Number
Order from distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
STEF05LAPUR Available at distributors

Distributor availability of STEF05LAPUR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel DFN10 3X3 - - CHINA
STEF05LAJR Available at distributors

Distributor availability of STEF05LAJR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
NRND
EAR99 NEC Tape and Reel CSP P 0.4 mm - - CHINA
STEF05LJR Available at distributors

Distributor availability of STEF05LJR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
NRND
EAR99 NEC Tape and Reel CSP P 0.4 mm - - ITALY
STEF05LPUR Available at distributors

Distributor availability of STEF05LPUR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel DFN10 3X3 - - CHINA

STEF05LAPUR Active

Package:
DFN10 3X3
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STEF05LAPUR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

STEF05LAJR NRND

Package:
CSP P 0.4 mm
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STEF05LAJR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

STEF05LJR NRND

Package:
CSP P 0.4 mm
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STEF05LJR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

ITALY

STEF05LPUR Active

Package:
DFN10 3X3
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

STEF05LPUR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

Swipe or click the button to explore more details Don't show this again

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