USB compatible battery charger demo board with integrated power switch for Li-Ion/Li-Polymer based on the L6924U

The STEVAL-ISA076V2 demonstration board is based on the L6924U which is a fully monolithic battery charger dedicated to single-cell Li-Ion/Polymer battery packs. It is the ideal solution for space-limited applications, such as PDAs, handheld equipment, cellular phones, and digital cameras.

When an external voltage regulated adapter or USB port is used, the L6924U works in linear mode, and charges the battery in a constant current/constant voltage (CC/CV) profile.

Moreover, when a current-limited adapter is used, the device can operate in Quasi-Pulse Mode, dramatically reducing the power dissipation.

Key Features

  • Operating input voltage up to 12 V
  • Fully integrated solution with power MOSFET, reverse blocking diode, sense resistor, and thermal control
  • AC adapter or USB mode selection
  • Programmable charge current for both AC adapter and USB power sources separately
  • Low power/high power selection in USB mode
  • Both linear and quasi-pulse operation
  • 4.2 V preset charge voltage (±1 % accuracy)
  • Programmable termination current
  • Programmable charge timer
  • Status outputs to drive LEDs or host processor interface
  • Battery absence detection
  • Closed loop thermal control
  • NTC or PTC thermistor interface for battery temperature monitoring and protection
  • RoHS compliant

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デザイン

技術文書

製品スペック
Description バージョン サイズ
DB1157 DB1157: USB compatible battery charger demo board with integrated power switch for Li-Ion/Li-Polymer based on the L6924U 1.1 97 KB

ハードウェアリソース

Board Manufacturing Specifications
Description バージョン サイズ
Gerber files for STEVAL-ISA076V2 board 1.0 279 KB
Bill of Materials
Description バージョン サイズ
BOM for STEVAL-ISA076V2 board 1.0 50 KB
Schematic Packs
Description バージョン サイズ
Board Schematics for STEVAL-ISA076V2 board 1.0 21 KB

法務

ライセンス契約
Description バージョン サイズ
Evaluation products license agreement 1.0 125 KB
サポート & コミュニティ

サンプル & 購入

製品型番 Core Product Marketing Status Unit Price (US$) * 数量 ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-ISA076V2 L6924U Active 42.88 1 NEC EAR99 ITALY MORE INFO 直接購入 買い物かごに追加 DISTRIBUTOR AVAILABILITY
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(*) 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

品質 & 信頼性

製品型番 Marketing Status パッケージ Grade RoHS Compliance Grade Material Declaration**
STEVAL-ISA076V2 アクティブCARDIndustrialEcopack2
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(**) 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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