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  • The STPW12 is an integrated electronic power breaker, optimized to monitor the input power.

    Connected in series to the power rail, it is able to disconnect the electronic circuitry on its output if the power consumption overcomes the programmed limit. When this happens, the device automatically opens the integrated power switch and disconnects the load.
    The intervention of the protection is communicated to the board monitoring circuits through a signal on the fault pin.
    After a certain delay time, programmable by the user, the device automatically tries again to close the internal switch and re-connect the load.
    A dedicated monitor pin provides the user with continuous information on the monitored power.
    The device can be enabled/disabled through a dedicated pin, and a direct PWM mode can be implemented providing PWM pin with an external signal.

    Key Features

    • Real-time input power sensing
    • Input voltage range: from 10.5 V to 18 V
    • Continuous current typ.: 1.5 A
    • P-channel on resistance typ.: 50 mΩ
    • Power limit accuracy typ.: 3%
    • Undervoltage lockout
    • Adjustable power limitation
    • PWM mode
    • Programmable power limit masking time
    • Programmable auto-retry delay
    • Thermal shutdown
    • Enable function
    • Short-circuit current limit
    • Operative junction temp. - 40 °C to 125 °C
    • Available in power SO8 package
    • Simplifies UL compliance and certification

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Technical Documentation

    • Description Version Size Action
      DS12478
      Programmable electronic power breaker for 12 V bus
      1.0
      1.09 MB
      PDF
      DS12478

      Programmable electronic power breaker for 12 V bus

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STPW12PHR
Active
PowerSO-8 Industrial Ecopack2

STPW12PHR

Package:

PowerSO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PowerSO-8

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

Part Number
Order from Distributors
Order from ST
Package
Packing Type
Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
STPW12PHR Available at 7 distributors

Distributor availability ofSTPW12PHR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4863 1 Order Now
COMPEL EUROPE 3 1 Order Now
AVNET AMERICA 2500 0 Order Now
ARROW EUROPE 2490 0 Order Now
MOUSER WORLDWIDE 2466 1 Order Now
Farnell Element14 EUROPE 120 1 Order Now
ANGLIA Live EUROPE 50 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

4863

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2490

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2466

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

120

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

50

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Buy now PowerSO-8 Tape And Reel
Active
EAR99 CHINA 0.95 / 1k

STPW12PHR

Package

PowerSO-8

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

0.95 / 1k

Distributor availability ofSTPW12PHR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 4863 1 Order Now
COMPEL EUROPE 3 1 Order Now
AVNET AMERICA 2500 0 Order Now
ARROW EUROPE 2490 0 Order Now
MOUSER WORLDWIDE 2466 1 Order Now
Farnell Element14 EUROPE 120 1 Order Now
ANGLIA Live EUROPE 50 1 Order Now

Distributor reported inventory date: 2020-07-07

Distributor Name

DIGIKEY

Stock

4863

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2490

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

2466

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

120

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

50

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-07-07

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.95 / 1k

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