1 Features
1• High-efficiency 2-A, 1.5-MHz switch mode boost
charger
– 93.4% Charge efficiency at 5-V adapter, 7.6-V
battery, 1-A charge
– Optimized for USB input and 2-cell Li-Ion
battery
• Single input to support USB input adapters
– Supports 4.3-V to 6.2-V input voltage range
with 20-V absolute maximum input voltage
rating
– Input current limit (500 mA to 3.3 A) to support
USB2.0, USB3.0 standard adapters
– Integrated USB D+/D- auto-detect USB SDP,
CDP, DCP, and non-standard adapters
• Standalone function with PowerPath management
– Highest battery discharge efficiency with 17-
mΩ battery discharge MOSFET
– Narrow VDC (NVDC) PowerPath management
– Instant-on works with no battery or deeply
discharged battery
– Ideal diode operation in battery supplement
mode
– Adjustable charge voltage with VSET pin
supports 8.2 V, 8.4 V, 8.7 V, and 8.8 V
– Adjustable charge current with ICHGSET pin
supports 100 to 2200 mA
– Adjustable input current limit with ILIM pin
• Input current optimizer (ICO) to maximize input
power without overloading adapters
• High integration includes all MOSFETs, current
sensing and loop compensation
• High accuracy
– ±0.5% Charge voltage regulation
– ±5% Charge current regulation
– ±7.5% Input current regulation
• Safety
– Battery temperature sensing in charge
– Thermal regulation and thermal shutdown

2 Applications
• Wireless speaker
• Smart Speaker
• EPOS Printer
• Portable POS
• IP network camera

3 Description
The BQ25886 is a highly-integrated 2-A boost switchmode
battery charge management and system
PowerPath management which enables instant power
on and provides accurate termination control device
for 2-cell (2s) Li-Ion and Li-polymer battery. The
BQ25886 is a standalone solution with PowerPath
and OTG.