bq25600/bq25600C/bq25600D 3 A Switch-Mode Battery Chargers

• Operation as a parallel charger to provide fast charging in dual charger operation (bq25600C) 
• High-efficiency, 1.5 MHz, synchronous switch-mode buck charger
  • 92% charge efficiency at 2 A from 5 V input
  • Optimized for USB voltage input (5 V)
  • Selectable low power pulse frequency modulation (PFM) mode for light load operations
• Supports USB on-the-go (OTG) (bq25600 and bq25600D)
  • Boost converter with up to 1.2 A output
  • 92% boost efficiency at 1 A output
  • Accurate constant current (CC) limit
  • Soft-start up to 500 µF capacitive load
  • Output short circuit protection
  • Selectable low power PFM mode for light load operations
• BATFET control to support ship mode, wake up, and full system reset (bq25600 and bq25600D)
• Flexible autonomous and I²C mode for optimal system performance
• High integration includes all MOSFETs, current sensing, and loop compensation
• High battery discharge efficiency with 19.5 mΩ battery discharge MOSFET
• 17 µA low battery leakage current

Applications

• Smartphones
• Portable internet devices and accessories

• Single input to support USB input and high voltage adapters
  • Support 3.9 V to 13.5 V input voltage range with 22 V absolute maximum input voltage rating
  • Programmable input current limit (100 mA to 3.2 A with 100 mA resolution) to support USB 2.0, USB 3.0 standards and high voltage adapters (I_INDPM)
  • Maximum power tracking by input voltage limit up to 5.4 V (V_INDPM)
  • V_INDPM threshold automatically tracks battery voltage
  • Auto-detect USB SDP, DCP, and non-standard adapters
• Narrow V_DC (NV_DC) power path management
  • Instant-on works with no battery or deeply discharged battery
  • Ideal diode operation in battery supplement mode
• High accuracy
  • ±0.5% charge voltage regulation
  • ±6% at 1.38 A charge current regulation
  • ±10% at 0.9 A input current regulation
  • Remote battery sensing for fast charge
• Create a custom design using the bq25600, bq25600D, and bq25600C with the WEBENCH^®Power Designer