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Texas Instruments bq25600/bq25600D Battery Chargers

Texas Instruments bq25600/bq25600D Battery Chargers are a highly-integrated 3.0A switch-mode battery charge management and system power path management device for single-cell Li-Ion and Li-polymer batteries. The low impedance power path optimizes switch-mode operation efficiency, reduces the battery charging time, and extends battery life during discharging phase. The I2C serial interface with charging and system settings makes the device a truly flexible solution. These devices feature fast charging with high input voltage support for a wide range of smartphones, tablets, and portable devices. The bq25600/bq25600D input voltage and current regulation and battery remote sensing deliver maximum charging power to the battery. The solution is highly integrated with input reverse-blocking FET (RBFET, Q1), high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and battery FET (BATFET, Q4) between system and battery.

Features

  • High-efficiency, 1.5MHz, synchronous switch-mode buck charger
    • 92% Charge efficiency at 2A from 5V input
    • Optimized for USB voltage input (5V)
    • Selectable low power Pulse Frequency Modulation (PFM) mode for light load operations
  • Supports USB On-The-Go (OTG)
    • Boost converter with up to 1.2A output
    • 92% Boost efficiency at 1A output
    • Accurate Constant Current (CC) limit
    • Soft-start up to 500µF capacitive load
    • Output short circuit protection
    • Selectable low power 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
    • Auto-detect USB SDP, DCP, and non-standard adaptors
  • High battery discharge efficiency with 19.5mΩ battery discharge MOSFET
  • Narrow VDC (NVDC) power path management
    • Instant-on works with no battery or deeply discharged battery
    • Ideal diode operation in battery supplement mode
  • BATFET Control to support ship mode, wake up, and full system reset
  • 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
    • ±6% at 1.38A Charge current regulation
    • ±10% at 0.9A Input current regulation
    • Remote battery sensing for fast charge

Applications

  • Smart phones
  • Portable internet devices and accessory

Videos

Simplified Application

Application Circuit Diagram - Texas Instruments bq25600/bq25600D Battery Chargers

Software

Associated Development Tool

Texas Instruments bq25600EVM-771/bq25600DEVM-711 Evaluation Modules

Complete charger modules for evaluating bq25600 or bq25600D, single-cell fast charger ICs.

Learn Moreà propos de Texas Instruments bq25600EVM-771/bq25600DEVM-711 Evaluation Modules View Productslié à Texas Instruments bq25600EVM-771/bq25600DEVM-711 Evaluation Modules
Publié le: 2017-08-11 | Mis à jour le: 2022-04-12