SPV1040
High efficiency solar battery charger with embedded MPPT-
Active
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, and is capable of maximizing the energy generated by even 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 at the input.
Download
Datasheet
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
- 3 mm x 4.4 mm TSSOP8 package
Circuit Diagram
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DS6991: High efficiency solar battery charger with embedded MPPT
|
5.0 | 966 KB |
Application Notes
| Description | Version | Size |
|---|---|---|
|
AN3971: STEVAL-ISV005V2: solar battery charger for lead acid batteries based on the SPV1020 and SEA05
|
1.0 | 1,574 KB |
|
AN4050: STEVAL-ISV012V1: lithium-ion solar battery charger
|
2.0 | 1,169 KB |
|
AN4123: STEVAL-ISV015V1 up to 2.5 W solar USB charger
|
2.0 | 990 KB |
Design Notes & Tips
| Description | Version | Size |
|---|---|---|
|
DN0012: Boost converter with MPPT drives isolated solar panel loads
|
1.0 | 311 KB |
Presentations & Training Material
Presentations
| Description | Version | Size |
|---|---|---|
|
SPV1040: solar battery charger for portable
|
1.0.0 | 346 KB |
Related Tools and Software
Related Tools and Software
| Part Number | Description |
|---|---|
| STEVAL-ISV006V2 | Up to 5 W solar battery charger with embedded MPPT based on SPV1040 |
| STEVAL-ISV012V1 | Solar battery charger for Li-Ion batteries |
| STEVAL-ISV015V1 | Up to 2.5 W solar USB supply based on the SPV1040 and LD39050 |
Publications and Collaterals
Flyer
| Description | Version | Size |
|---|---|---|
|
High-efficiency solar battery charger
|
2.0.0 | 221 KB |
Sample & Buy
Top| Part Number | Marketing Status | Package | Packing Type | Operating Temperature (min) | Operating Temperature (max) | Automotive Grade | Order From ST | Unit Price (US$)* @ 1000 | Distributor Availability | RoHS Compliance Grade | Download Material Declaration** |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SPV1040T | Active | TSSOP8 | Tube | -40 | 125 | _ | 1.25 |
| Ecopack2 | - | |||||||||||||||||||||||||||||||
| SPV1040TTR | Active | TSSOP8 | Tape And Reel | -40 | 125 | _ | 1.25 |
| Ecopack2 | - | |||||||||||||||||||||||||||||||
(*) 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 (**) 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. |
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