SPV1050

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Ultra low power energy harvester and battery charger with embedded MPPT and LDOs

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  • The SPV1050 is an ultralow power and high-efficiency energy harvester and battery charger, which implements the MPPT function and integrates the switching elements of a buck-boost converter.

    The SPV1050 device allows the charge of any battery, including the thin film batteries, by tightly monitoring the end-of-charge and the minimum battery voltage in order to avoid the overdischarge and to preserve the battery life.
    The power manager is suitable for both PV cells and TEG harvesting sources, as it covers the input voltage range from 75 mV up to 18 V and guarantees high efficiency in both buck-boost and boost configuration.
    Furthermore the SPV1050 device shows very high flexibility thanks also to the trimming capability of the end-of-charge and undervoltage protection voltages. In such way any source and battery is matched.
    The MPPT is programmable by a resistor input divider and allows maximizing the source power under any temperature and irradiance condition.
    An unregulated voltage output is available (e.g. to supply a microcontroller), while two fully independent LDOs are embedded for powering sensors and RF transceivers. Both LDOs (1.8 V and 3.3 V) can be independently enabled through two dedicated pins.

    Key Features

    • Transformerless thermoelectric generators and PV modules energy harvester
    • High efficiency for any harvesting source
    • Up to 70 mA maximum battery charging current
    • Fully integrated buck-boost DC-DC converter
    • Programmable MPPT by external resistors
    • 2.6 V to 5.3 V trimmable battery charge voltage level (± 1% accuracy)
    • 2.2 V to 3.6 V trimmable battery discharge voltage level (± 1% accuracy)
    • Two fully independent LDOs (1.8 V and 3.3 V output)
    • Enable/disable LDO control pins
    • Battery disconnect function for battery protection
    • Battery connected and ongoing charge logic open drain indication pins

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Evaluation Tools

    • Part Number

      Thin-film solar smart watch based on SPV1050 energy harvester and battery charger

      Evaluation board for SPV1050 ULP energy harvester and battery charger - boost configuration

      Evaluation Board for SPV1050 ULP Energy Harvester and Battery Charger - Buck-Boost Configuration

      Energy harvesting Evaluation kit based on the SPV1050

00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS10044
      Ultralow power energy harvester and battery charger
      5.0
      1.67 MB
      PDF
      DS10044

      Ultralow power energy harvester and battery charger

    • Description Version Size Action
      AN4395
      Autonomous wireless multi-sensor node powered by PV cells and based on SPV1050 (SPIDEr™)
      1.0
      2.09 MB
      PDF
      AN4394
      Evaluation board for SPV1050 ULP harvester (boost architecture)
      2.0
      534.09 KB
      PDF
      AN4397
      Evaluation board for SPV1050 ULP harvester (buck-boost architecture)
      2.0
      584.82 KB
      PDF
      AN4396
      STEVAL-ISV021V1, energy harvesting system based on SPV1050, PV panel and battery
      1.0
      754.83 KB
      PDF
      AN4395

      Autonomous wireless multi-sensor node powered by PV cells and based on SPV1050 (SPIDEr™)

      AN4394

      Evaluation board for SPV1050 ULP harvester (boost architecture)

      AN4397

      Evaluation board for SPV1050 ULP harvester (buck-boost architecture)

      AN4396

      STEVAL-ISV021V1, energy harvesting system based on SPV1050, PV panel and battery

    • Description Version Size Action
      AN4394
      Evaluation board for SPV1050 ULP harvester (boost architecture)
      2.0
      534.09 KB
      PDF
      AN4397
      Evaluation board for SPV1050 ULP harvester (buck-boost architecture)
      2.0
      584.82 KB
      PDF
      AN4396
      STEVAL-ISV021V1, energy harvesting system based on SPV1050, PV panel and battery
      1.0
      754.83 KB
      PDF
      AN4394

      Evaluation board for SPV1050 ULP harvester (boost architecture)

      AN4397

      Evaluation board for SPV1050 ULP harvester (buck-boost architecture)

      AN4396

      STEVAL-ISV021V1, energy harvesting system based on SPV1050, PV panel and battery

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      SPV1050 spice model with examples 1.0
      325.37 KB
      ZIP

      SPV1050 spice model with examples

Presentations & Training Material

    • Description Version Size Action
      Getting started with SPV1050 1.0
      720.07 KB
      PDF

      Getting started with SPV1050

Publications and Collaterals

    • Description Version Size Action
      Harvest the maximum power from ambient energy 09.2017
      700.11 KB
      PDF

      Harvest the maximum power from ambient energy

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
SPV1050-WST
Preview
TESTED USWF Industrial N/A
SPV1050TTR
Active
VFQFPN 20 3x3 Industrial Ecopack2

SPV1050-WST

Package:

TESTED USWF

Material Declaration**:

Marketing Status

Preview

Package

TESTED USWF

Grade

Industrial

RoHS Compliance Grade

N/A

SPV1050TTR

Package:

VFQFPN 20 3x3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

VFQFPN 20 3x3

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
Temperature (°C) Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
min
max
SPV1050TTR No availability of distributors reported, please contact our sales office VFQFPN 20 3x3 Tape And Reel -40 85
Active
EAR99 PHILIPPINES 1.43 / 1k
SPV1050-WST No availability of distributors reported, please contact our sales office TESTED USWF Not Applicable -40 85
Preview
EAR99 ITALY 1.15 / 1k

SPV1050TTR

Package

VFQFPN 20 3x3

Packing Type

Tape And Reel

Budgetary Price (US$)*/Qty

1.43 / 1k

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

1.43 / 1k

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

SPV1050-WST

Package

TESTED USWF

Packing Type

Not Applicable

Budgetary Price (US$)*/Qty

1.15 / 1k

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Preview

Budgetary Price (US$)* / Qty

1.15 / 1k

ECCN (US)

EAR99

Country of Origin

ITALY

(*) 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