1 Features
1• High-efficiency 2-A, 1.5MHz switch mode boost
charger
– 93.4% Charge efficiency at 5V adapter, 7.6-V
battery, 1-A charge
– Optimized for USB input and 2-cell Li-Ion
battery
– Selectable low power PFM mode for light load
operation
• Single input to support USB input adapters
– Supports 3.9 V – 6.2 V input voltage range
with 20-V absolute maximum input voltage
rating
– Input current limit (500 mA to 3.3 A with 100-
mA resolution) to support USB2.0, USB3.0
standard adapters
– Maximum power tracking by input voltage limit
up-to 5.5 V
– Integrated USB D+/D- auto-detect USB SDP,
CDP, DCP, and non-standard adapters
• Power path management and I2C control
– Highest battery discharge efficiency with 17mΩ
battery discharge MOSFET
– Narrow VDC (NVDC) power path management
– Instant-on system on with no battery or
deeply discharged battery
– Ideal diode operation in battery supplement
mode
• USB on-the-go (OTG) with adjustable output from
4.5V to 5.5V
– Buck converter with up-to 2 A output
– 94% Efficiency at 5 V, 1 A output
– Accurate constant current (CC) regulation and
output short protection
– Selectable low power PFM mode for light load
operation with out-of-audio option
• Input current optimizer (ICO) to maximize input
power without overloading adapters
• Integrated 16-bit ADC for system monitoring (BUS
voltage and current, each cell voltage, charge
current, SYS voltage, and NTC and die
temperature)
• 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 and
OTG buck mode
– Thermal regulation and thermal shutdown

2 Applications
• Bluetooth speaker
• EPOS Printer
• Portable POS
• Wireless security camera

3 Description
The BQ25883 is a highly-integrated 2-A boost switchmode
battery charge management and system power
path management device for 2-cell (2s) Li-Ion and Lipolymer
battery. The BQ25883 has I2C control with
OTG and power path.