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Rating Catalog Operating temperature range (°C) 0 to 125
Rating Catalog Operating temperature range (°C) 0 to 125
DSBGA (YFP) 28 5.4 mm² 1.8 x 3
  • Single-Stage Wireless Power Receiver
    and Li-Ion/Li-Pol Battery Charger
    • Combines Wireless Power Receiver, Rectifier, and Battery Charger in a Single, Small Package
    • 4.20-V, 4.35-V, and 4.40-V Output Voltage Options
    • Supports a Charging Current up to 1.5 A
    • 93% Peak AC-DC Charging Efficiency
  • Robust Architecture
    • 20-V Maximum Input Voltage Tolerance,
      With Input Overvoltage Protection
    • Thermal Shutdown and Overcurrent Protection
    • Temperature Monitoring and Fault Detection
  • Compatible With WPC v1.2 Qi Industry Standard
  • Power Stage Output Tracks Rectifier and Battery Voltage to Ensure Maximum Efficiency Across the Full Charge Cycle
  • Available in Small DSGBA and VQFN Packages
  • Single-Stage Wireless Power Receiver
    and Li-Ion/Li-Pol Battery Charger
    • Combines Wireless Power Receiver, Rectifier, and Battery Charger in a Single, Small Package
    • 4.20-V, 4.35-V, and 4.40-V Output Voltage Options
    • Supports a Charging Current up to 1.5 A
    • 93% Peak AC-DC Charging Efficiency
  • Robust Architecture
    • 20-V Maximum Input Voltage Tolerance,
      With Input Overvoltage Protection
    • Thermal Shutdown and Overcurrent Protection
    • Temperature Monitoring and Fault Detection
  • Compatible With WPC v1.2 Qi Industry Standard
  • Power Stage Output Tracks Rectifier and Battery Voltage to Ensure Maximum Efficiency Across the Full Charge Cycle
  • Available in Small DSGBA and VQFN Packages

The bq5105x device is a high-efficiency, Qi-compliant wireless power receiver with an integrated Li-Ion/Li-Pol battery charge controller for portable applications. The bq5105xB devices provide efficient AC-DC power conversion, integrates the digital controller required to comply with Qi v1.2 communication protocol, and provides all necessary control algorithms needed for efficient and safe Li-Ion and Li-Pol battery charging. Together with the bq500212A transmitter-side controller, the bq5105x enables a complete wireless power transfer system for direct battery charger solutions. By using near-field inductive power transfer, the receiver coil embedded in the portable device can pick up the power transmitted by transmitter coil. The AC signal from the receiver coil is then rectified and conditioned to apply power directly to the battery.  Global feedback is established from the receiver to the transmitter to stabilize the power transfer process.  This feedback is established by using the Qi v1.2 communication protocol.

The bq5105xB devices integrate a low-impedance synchronous rectifier, low-dropout regulator (LDO), digital control, charger controller, and accurate voltage and current loops in a single package.  The entire power stage (rectifier and LDO) use low-resistance N-MOSFETs (100-mΩ typical Rdson) to ensure high efficiency and low power dissipation.

The bq5105x device is a high-efficiency, Qi-compliant wireless power receiver with an integrated Li-Ion/Li-Pol battery charge controller for portable applications. The bq5105xB devices provide efficient AC-DC power conversion, integrates the digital controller required to comply with Qi v1.2 communication protocol, and provides all necessary control algorithms needed for efficient and safe Li-Ion and Li-Pol battery charging. Together with the bq500212A transmitter-side controller, the bq5105x enables a complete wireless power transfer system for direct battery charger solutions. By using near-field inductive power transfer, the receiver coil embedded in the portable device can pick up the power transmitted by transmitter coil. The AC signal from the receiver coil is then rectified and conditioned to apply power directly to the battery.  Global feedback is established from the receiver to the transmitter to stabilize the power transfer process.  This feedback is established by using the Qi v1.2 communication protocol.

The bq5105xB devices integrate a low-impedance synchronous rectifier, low-dropout regulator (LDO), digital control, charger controller, and accurate voltage and current loops in a single package.  The entire power stage (rectifier and LDO) use low-resistance N-MOSFETs (100-mΩ typical Rdson) to ensure high efficiency and low power dissipation.

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* Data sheet bq5105xB High-Efficiency Qi v1.2-Compliant Wireless Power Receiver and Battery Charger datasheet (Rev. F) PDF | HTML 2017/06/28

설계 및 개발

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계산 툴

SLUC577 Foreign Object Detection (FOD) Calibration/Tuning Tool

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SLUC629 BQ5105XB NTC Calculator Tool

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배터리 충전기 IC
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패키지 CAD 기호, 풋프린트 및 3D 모델
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