Advanced CV/CC secondary controller

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  • The SEA05 is a highly integrated solution for SMPS applications requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation.

    The device integrates a voltage reference, two opamps (with OR-ed open-drain outputs), and a lowside current sensing circuit.
    The voltage reference, along with one op-amp, is the core of the voltage control loop; the current sensing circuit and the other op-amp make up the current control loop.
    The external components needed to complete the two control loops are: a resistor divider that senses the output of the power supply and fixes the voltage regulation setpoint at the specified value; a sense resistor that feeds the current sensing circuit with a voltage proportional to the dc output current; this resistor determines the current regulation setpoint and must be adequately rated in terms of power dissipation; the frequency compensation components (R-C networks) for both loops.
    The device, housed in one of the smallest available package, is ideal for space-shrunk applications such as adapters and chargers.

    Key Features

    • Open-drain output stage
    • Current sense threshold: 50 mV
    • SOT23-6L micro package
    • Constant voltage and constant current control
    • Low quiescent consumption: 200 µA
    • Wide operating VCC range [3.5 - 36] V
    • Voltage control loop accuracy +/- 0.5%
    • Low external component count
    • Voltage reference: 2.5 V

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Part Number
Package
Packing Type
Temperature (°C) Reference Voltage (V) (nom)
Marketing Status
Budgetary Price (US$)*
Quantity
More info
Order from Distributors
Order from ST
min
max
SEA05TR SOT23-6L Tape And Reel - - -
Active
0.228 1000
MORE INFO

ECCN (US):

EAR99

Country of Origin:

MALAYSIA

Check Availability

Distributor availability ofSEA05TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1908 1 Order Now
P&S ASIA/PACIFIC 4 1 Order Now
MOUSER WORLDWIDE 3928 1 Order Now
Farnell Element14 EUROPE 2294 1 Order Now
ANGLIA Live EUROPE 51000 500 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

1908

Min.Order

1

Region

WORLDWIDE Order Now

P&S

Stock

4

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

3928

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2294

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

51000

Min.Order

500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Get sample

SEA05TR

Package

SOT23-6L

Packing Type

Tape And Reel

Unit Price (US$)

0.228*

Distributor availability ofSEA05TR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1908 1 Order Now
P&S ASIA/PACIFIC 4 1 Order Now
MOUSER WORLDWIDE 3928 1 Order Now
Farnell Element14 EUROPE 2294 1 Order Now
ANGLIA Live EUROPE 51000 500 Order Now

Distributor reported inventory date: 2019-09-17

Distributor Name

DIGIKEY

Stock

1908

Min.Order

1

Region

WORLDWIDE Order Now

P&S

Stock

4

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

3928

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

2294

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

51000

Min.Order

500

Region

EUROPE Order Now

Distributor reported inventory date: 2019-09-17

Operating Temperature (°C)

(min)

-

(max)

-

Reference Voltage (V) (nom)

-

Marketing Status

Active

Unit Price (US$)

0.228

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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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Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
SEA05TR
Active
SOT23-6L Industrial Ecopack2

SEA05TR

Package:

SOT23-6L

Material Declaration**:

Marketing Status

Active

Package

SOT23-6L

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.