BQ25886RGER

The BQ25886 is a highly integrated 2A step-up switching-mode battery charging management and system PowerPath management device that enables instant power-on and provides precise termination control. It is suitable for 2-cell (2s) lithium-ion and lithium-polymer batteries. The BQ25886 is a standalone solution with PowerPath and OTG functions.

Applications

• Wireless speakers
• Smart speakers
• EPOS printers
• Portable POS IP network cameras

Key features

• High-efficiency 2A, 1.5MHz switch-mode boost charger with 93.4% charging efficiency at 5V adapter, 7.6V battery, 1A charge current; optimized for USB input and 2-cell Li-ion batteries
• Single input with USB adapter support
• Input voltage range: 4.3V to 6.2V; absolute maximum input voltage rating: 20V
• Input current limiting (500mA to 3.3A); compatible with USB2.0 and USB3.0 standard adapters
• Integrated USB D+/D- auto-detection for USB SDP, CDP, DCP, and non-standard adapters
• Standalone operation with PowerPath management
• 17mΩ battery discharge MOSFET for high battery discharge efficiency
• Narrow VDC (NVDC) PowerPath management
• Instant system power-up without battery or with deeply discharged battery
• Ideal diode operation in battery charging mode
• Charge voltage adjustable via VSET pin: 8.2V, 8.4V, 8.7V, and 8.8V
• Charge current adjustable via ICHGSET pin: 100 to 2200mA
• Input current limit adjustable via ILIM pin
• Input Current Optimizer (ICO) for maximum input power without overloading the adapter
• High integration: all MOSFETs, current sensing, and loop compensation on-chip
• High-accuracy ±0.5% charge voltage regulation
• ±5% charge current regulation
• ±7.5% input current regulation
• Battery temperature monitoring during charging for safe operation
• Thermal regulation and thermal shutdown