High efficiency solar battery charger with embedded MPPT

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  • The SPV1040 device is a low power, low voltage, monolithic step-up converter with an input voltage range from 0.3 V to 5.5 V, capable of maximizing the energy generated by a single solar cell (or fuel cell), where low input voltage handling capability is extremely important. Thanks to the embedded MPPT algorithm, even under varying environmental conditions (such as irradiation, dirt, temperature) the SPV1040 offers maximum efficiency in terms of power harvested from the cells and transferred to the output. The device employs an input voltage regulation loop, which fixes the charging battery voltage via a resistor divider. The maximum output current is set with a current sense resistor according to charging current requirements. The SPV1040 protects itself and other application devices by stopping the PWM switching if either the maximum current threshold (up to 1.8 A) is reached or the maximum temperature limit (up to 155 °C) is exceeded. An additional built-in feature of the SPV1040 is the input source reverse polarity protection, which prevents damage in case of reverse connection of the solar panel on the input.

    Key Features

    • 0.3 V to 5.5 V operating input voltage
    • 140 mΩ internal synchronous rectifier
    • 120 mΩ internal power active switch
    • 100 kHz fixed PWM frequency
    • Duty cycle controlled by MPPT algorithm
    • Output voltage regulation, overcurrent and overtemperature protection
    • Input source reverse polarity protection
    • Built-in soft-start
    • Up to 95% efficiency
    • TSSOP8 package 3x4.4 mm

Circuit Diagram

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Part Number
Package
Packing Type
Temperature (°C) Marketing Status
Budgetary Price (US$)*
Quantity
ECCN (US)
More info
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min
max
SPV1040T TSSOP8 Tube -40 125
Active
1.25 1000 EAR99
MORE INFO

Country of Origin:

PHILIPPINES

Check Availability

Distributor availability ofSPV1040T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1160 1 Order Now
AVNET AMERICA 361 0 Order Now
ARROW EUROPE 1740 0 Order Now
Newark Element14 AMERICA 30 0 Order Now
MOUSER WORLDWIDE 1081 1 Order Now
Farnell Element14 EUROPE 1585 1 Order Now

Distributor reported inventory date: 2019-08-21

Distributor Name

DIGIKEY

Stock

1160

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

361

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1740

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

30

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1081

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1585

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-21

Buy now
SPV1040TTR TSSOP8 Tape And Reel -40 125
Active
1.25 1000 EAR99
MORE INFO

Country of Origin:

PHILIPPINES

Check Availability

Distributor availability ofSPV1040TTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2976 1 Order Now
MOUSER WORLDWIDE 5343 1 Order Now
Farnell Element14 EUROPE 3804 1 Order Now

Distributor reported inventory date: 2019-08-21

Distributor Name

DIGIKEY

Stock

2976

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

5343

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3804

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-21

Buy now

SPV1040T

Package

TSSOP8

Packing Type

Tube

Unit Price (US$)

1.25*

Distributor availability ofSPV1040T

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1160 1 Order Now
AVNET AMERICA 361 0 Order Now
ARROW EUROPE 1740 0 Order Now
Newark Element14 AMERICA 30 0 Order Now
MOUSER WORLDWIDE 1081 1 Order Now
Farnell Element14 EUROPE 1585 1 Order Now

Distributor reported inventory date: 2019-08-21

Distributor Name

DIGIKEY

Stock

1160

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

361

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1740

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

30

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1081

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1585

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-21

Operating Temperature (°C)

(min)

-40

(max)

125

Marketing Status

Active

Unit Price (US$)

1.25

Quantity

1000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

SPV1040TTR

Package

TSSOP8

Packing Type

Tape And Reel

Unit Price (US$)

1.25*

Distributor availability ofSPV1040TTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2976 1 Order Now
MOUSER WORLDWIDE 5343 1 Order Now
Farnell Element14 EUROPE 3804 1 Order Now

Distributor reported inventory date: 2019-08-21

Distributor Name

DIGIKEY

Stock

2976

Min.Order

1

Region

WORLDWIDE Order Now

MOUSER

Stock

5343

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

3804

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-08-21

Operating Temperature (°C)

(min)

-40

(max)

125

Marketing Status

Active

Unit Price (US$)

1.25

Quantity

1000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 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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      Solar battery charger for Li-Ion batteries

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS6991
      High efficiency solar battery charger with embedded MPPT
      7.0
      926.17 KB
      PDF
      DS6991

      High efficiency solar battery charger with embedded MPPT

    • Description Version Size Action
      AN3319
      STEVAL-ISV006V2: solar battery charger using the SPV1040
      8.2
      1.11 MB
      PDF
      AN3319

      STEVAL-ISV006V2: solar battery charger using the SPV1040

    • Description Version Size Action
      DN0012
      Boost converter with MPPT drives isolated solar panel loads
      1.1
      311.05 KB
      PDF
      DN0012

      Boost converter with MPPT drives isolated solar panel loads

    • Description Version Size Action
      AN3319
      STEVAL-ISV006V2: solar battery charger using the SPV1040
      8.2
      1.11 MB
      PDF
      AN4050
      STEVAL-ISV012V1 lithium-ion solar battery charger
      3.0
      1.17 MB
      PDF
      AN3319

      STEVAL-ISV006V2: solar battery charger using the SPV1040

      AN4050

      STEVAL-ISV012V1 lithium-ion solar battery charger

Presentations & Training Material

    • Description Version Size Action
      SPV1040: solar battery charger for portable 1.0
      345.9 KB
      PDF

      SPV1040: solar battery charger for portable

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
SPV1040T
Active
TSSOP8 Industrial Ecopack2
SPV1040TTR
Active
TSSOP8 Industrial Ecopack2

SPV1040T

Package:

TSSOP8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

SPV1040TTR

Package:

TSSOP8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP8

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.

eDesignSuite

Solar Battery Charger

Input Panel Specification

V This option is required. And must be less than or equal to Voc [V]
V This option is required. And must be greater than or equal to Vmp [V]
A This option is required. And must be less than or equal to Isc [A]
A This option is required. And must be greater than or equal to Imp [A]

Output Battery Specification

V This option is required.
A This option is required.