TSM1052

Active

Constant voltage and constant current controller for battery chargers and adapters

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Product overview

Description

The TSM1052 is a highly integrated solution for SMPS applications requiring a dual control loop to perform CV (constant voltage) and CC (constant current) regulation. The TSM1052 integrates a voltage reference, two op amps (with OR-ed open-drain outputs), and a low-side 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 (adapter, battery charger) and fixes the voltage regulation set point 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 set point and must be adequately rated in terms of power dissipation; Frequency compensation components (RC networks) for both loops.
The TSM1052, housed in one of the smallest package available, is ideal for space-shrunk applications such as adapters and chargers.
  • All features

    • Easy frequency compensation
    • Wired-or open-drain output stage
    • Secondary-side constant voltage and constant current control
    • Very low quiescent consumption
    • Very low voltage operation
    • Low external component count
    • SOT23-6 micro package
    • High-accuracy internal reference

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TSM1052
Active
SOT23-6L Industrial Ecopack2

TSM1052

Package:

SOT23-6L

Material Declaration**:

PDF XML

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.

Sample & Buy

Part Number
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Reference Voltage (V) (nom)
Budgetary Price (US$)*/Qty
More info
min
max
TSM1052 Available at 5 distributors

Distributor availability ofTSM1052

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
RS COMPONENTS EUROPE 3280 1 Order Now
MOUSER WORLDWIDE 1325 1 Order Now
Farnell Element14 EUROPE 10715 1 Order Now
ANGLIA Live EUROPE 9000 3000 Order Now

Distributor reported inventory date: 2021-09-23

Distributor Name

DIGIKEY

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3280

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

1325

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

10715

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

9000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-23

Buy Direct
Active
EAR99 NEC Tape And Reel SOT23-6L -10 85 1.21 0.2376 / 1k
MORE INFO

Unit Price (US$):

0.2376

Country of Origin:

MALAYSIA

TSM1052

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2376 / 1k

Distributor availability ofTSM1052

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
RS COMPONENTS EUROPE 3280 1 Order Now
MOUSER WORLDWIDE 1325 1 Order Now
Farnell Element14 EUROPE 10715 1 Order Now
ANGLIA Live EUROPE 9000 3000 Order Now

Distributor reported inventory date: 2021-09-23

Distributor Name

DIGIKEY

Stock

3000

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

3280

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

1325

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

10715

Min.Order

1

Region

EUROPE Order Now

ANGLIA Live

Stock

9000

Min.Order

3000

Region

EUROPE Order Now

Distributor reported inventory date: 2021-09-23

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SOT23-6L

Operating Temperature (°C)

(min)

-10

(max)

85

Reference Voltage (V) (nom)

1.21

Budgetary Price (US$)* / Qty

0.2376 / 1k

Country of Origin

MALAYSIA

(*) 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