STEVAL-ISV012V1

量産中

Solar battery charger for Li-Ion batteries

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Product overview

概要

The STEVAL-ISV012V1 demonstration board is based on the SPV1040 solar voltage boost converter and the L6924D single cell Li-ion battery charger. The SPV1040 device is a high efficiency, 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 SPV1040 protects itself and other application devices by stopping the PWM switching if either the maximum current threshold (up to 2 A) is reached or the maximum temperature limit (up to 155 °C) is exceeded.
The L6924D device is a fully monolithic battery charger dedicated to single cell Lithium-ion/Lithium-ion polymer battery packs. It is the ideal solution for space-limited applications such as PDAs, handheld equipment, cellular phones, and digital cameras.
The L6924D normally works as a linear charger when powered from an external voltage regulated adapter. The device can also work in “quasi-pulse” charger mode when powered from a current limited adapter like that of a solar panel. To work in this condition, the charging current of the device should be set to a level higher than the solar panel maximum peak current.
Thanks to the L6924D’s very low minimum input voltage (down to 2.5 V), during the fast-charge phase the output voltage of the solar panel drops down to the battery voltage plus the voltage drop across the power MOSFET of the charger.
The main advantage of the quasi-pulse charging mode is that it shares the simplicity of the linear approach, where the power dissipated is dramatically reduced, thereby maximizing the charge rate from the solar panel.
The Li-ion battery solar charger with embedded (MPPT) and quasi-pulse charging mode is “best-in-class” in terms of system efficiency, allowing battery charging while maximizing available solar panel power.
In the STEVAL-ISV012V1 demonstration board, the L6924D is supplied by the output stage of the SPV1040, which is supplied by a 400 mW PV panel.
  • All features

    • SPV1040: solar boost converter with embedded maximum power point tracking (MPPT)
      • Proprietary “perturb & observe” MPPT algorithm
      • Up to 95% efficiency
      • Very low input voltage (down to 0.3 V)
      • Input reverse polarity protection
      • Thermal shut-down
      • Overcurrent protection
      • Enable pin
    • L6924D: Fully integrated linear charger solution with power MOSFET, reverse blocking diode and battery thermal control
      • 1% battery voltage regulation accuracy
      • Up to 1 A charge current with 7% accuracy
      • Closed loop thermal regulation protection for output current control
      • Low battery leakage current
      • Embedded quasi-pulse charging mode maximizes charge rate from solar panel
      • Selectable 4.1 V and 4.2 V output voltage
      • JEITA compliant with external circuit
      • Programmable charge, fast charge (up to 1 A), pre-charge, termination current, pre-charge mode voltage threshold, charge timer
      • Multifunction pin for flexible charge process termination
      • Status outputs to drive LEDs or host processor interface
      • Battery absence detection
      • NTC or PTC thermistor interface for battery temperature monitoring and protection
      • RoHS compliant

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品質 & 信頼性

製品型番 Marketing Status パッケージ グレード RoHSコンプライアンスグレード WEEE Compliant 材料宣誓書**
STEVAL-ISV012V1
量産中
CARD インダストリアル Ecopack2 -

STEVAL-ISV012V1

Package:

CARD

Material Declaration**:

Marketing Status

量産中

Package

CARD

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.comで提供している材料宣誓書は、パッケージ・ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください

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STEVAL-ISV012V1 Available at 2 distributors

販売代理店在庫STEVAL-ISV012V1

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
RS COMPONENTS EUROPE 8 1 発注する
Farnell Element14 EUROPE 6 1 発注する

販売代理店在庫データ: 2021-03-06

販売代理店

RS COMPONENTS

在庫

8

Min.Order

1

地域

EUROPE 発注する

Farnell Element14

在庫

6

Min.Order

1

地域

EUROPE 発注する

販売代理店在庫データ: 2021-03-06

Buy Direct SPV1040T
量産中
ST EAR99 NEC ITALY 68.0 / 1

STEVAL-ISV012V1

コア製品

SPV1040T

製品ステータス

量産中

Budgetary Price (US$)*/Qty

68.0 / 1

販売代理店在庫STEVAL-ISV012V1

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
RS COMPONENTS EUROPE 8 1 発注する
Farnell Element14 EUROPE 6 1 発注する

販売代理店在庫データ: 2021-03-06

販売代理店

RS COMPONENTS

在庫

8

Min.Order

1

地域

EUROPE 発注する

Farnell Element14

在庫

6

Min.Order

1

地域

EUROPE 発注する

販売代理店在庫データ: 2021-03-06

サプライヤ

ST

ECCN (US)

EAR99

ECCN (EU)

NEC

Budgetary Price (US$)* / Qty

68.0 / 1

Country of Origin

ITALY

(*)概算用の希望小売単価(US$)です。現地通貨でのお見積りについては、STのセールス・オフィスまたは販売代理店までお問い合わせください。