Ti Bq25895m Battery Power Charge Management Chip Voltage Monitor Protector Electronic Components Integrated Circuit IC.

• High efficiency 1.5-MHz switch mode buck charge
  • 93% charge efficiency at 2 A and 91% charge efficiency at 3 A charge current
  • Optimize for high voltage input (9 V / 12 V)
  • Low power PFM mode for light load operations
• Boost mode operation with adjustable output from 4.5 V to 5.5 V
  • Selectable 500-KHz / 1.5-MHz boost converter with up-to 3.1 A output
  • 93% Boost efficiency at 5 V at 1 A output
  • Support down-to 2.5V battery
  • Support PWM only or PFM/PWM control for light load efficiency
• Integrated control to switch between charge and boost mode
• Single input to support USB input and adjustable high voltage adapters
  • Support 3.9-V to 14-V input voltage range
  • Input current limit (100 mA to 3.25 A with 50-mA resolution) to support USB2.0, USB3.0 standard and high voltage adapters
  • Maximum power tracking by input voltage limit up-to 14V for wide range of adapters
  • Auto detect USB SDP, CDP, DCP, and non-standard adapters
• Input current optimizer (ICO) to maximize input power without overloading adapters
• Resistance compensation (IRCOMP) from charger output to cell terminal
• Highest battery discharge efficiency with 11-mΩ battery discharge MOSFET up to 9 A
• Integrated ADC for system monitor (voltage, temperature, charge current)
• 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
• 12-µA Low battery leakage current to support ship mode
• High accuracy
  • ±0.5% Charge voltage regulation
  • ±5% Charge current regulation
  • ±7.5% Input current regulation
• Safety
  • Battery temperature sensing for charge and boost mode
  • Thermal regulation and thermal shutdown

The BQ25895M is a highly-integrated 5-A switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery. The devices support high input voltage fast charging. The low impedance power path optimizes switch-mode operation efficiency, reduces 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.