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Texas Instruments bq25600C Single Cell Battery Charger

Texas Instruments bq25600C Single Cell Battery Charger is a highly-integrated 3.0A switch-mode battery charge management and system power path management device. The device is designed for single-cell Li-Ion and Li-polymer batteries. The bq25600C features fast charging with a high input voltage and high efficiency, which supports parallel charge applications for a wide range of smartphones, tablets, and portable devices. 

The bq25600C has a different I2C address from the bq25600 and thus only a single I2C bus is needed when the bq25600 is selected as a main charger and bq25600C is selected as a parallel charger. The low impedance power path optimizes switch-mode operation efficiency and reduces battery charging time. Its input voltage and current regulation and battery remote sensing deliver maximum charging power to the battery. The I2C serial interface with charging and system settings makes the device a truly flexible solution.

Features

  • Operation as Parallel Charger to Provide Fast Charging in Dual Charger Operation
  • High-Efficiency, 1.5MHz, Synchronous Switch-Mode Buck Charger
    • 92% Charge Efficiency at 2A from 5V Input
    • Optimized for USB Voltage Input (5V)
    • Low Power Pulse Frequency Modulation (PFM) Mode for Light Load Operations
  • Single Input to Support USB Input and High Voltage Adapters
    • Support 3.9V to 13.5V Input Voltage Range With 22V Absolute Maximum Input Voltage Rating
    • Programmable Input Current Limit (100mA to 3.2A With 100mA Resolution) to Support USB 2.0, USB 3.0 Standards and High Voltage Adaptors (IINDPM)
    • Maximum Power Tracking by Input Voltage Limit Up to 5.4V (VINDPM)
    • VINDPM Threshold Automatically Tracks Battery Voltage
  • High Charge Efficiency With 19.5mΩ Charging Current Sensing MOSFET
  • Narrow VDC (NVDC) Power Path Management
    • Instant-On Works with No Battery or Deeply Discharged Battery
    • Ideal Diode Operation in Battery Supplement Mode
  • Flexible Autonomous and I2C Mode for Optimal System Performance
  • High Integration Includes All MOSFETs, Current Sensing and Loop Compensation
  • 17µA Low Battery Leakage Current
  • High Accuracy
    • ±0.5% Charge Voltage Regulation
    • ±5% at 1.5A Charge Current Regulation
    • ±6% at 1.38A Charge Current Regulation
    • ±10% at 0.9A Input Current Regulation
    • Remote Battery Sensing for Fast Charge

Applications

  • Smart Phones
  • Tablet

Simplified Schematic

Texas Instruments bq25600C Single Cell Battery Charger
Inilathala: 2017-10-27 | Na-update: 2022-07-07