BQ25882 I2C Controlled, 2-Cell, 2-A Boost-Mode Battery Charger for USB Input | TI.com

BQ25882 (ACTIVE)

I2C Controlled, 2-Cell, 2-A Boost-Mode Battery Charger for USB Input

 

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Description

The BQ25882 is a highly-integrated 2-A switch-mode battery charge management and system power path management device for dual-cell Li-Ion and Li-polymer batteries. The I2C Serial interface with charging and system settings makes the device a truly flexible solution.

Features

  • High-Efficiency 2-A, 1.5-MHz Switch Mode Boost Charger
    • 92.5% Charge Efficiency at 7.6-V Battery, 1-A Charge
    • Optimized for USB Input and 2-Cell Li-Ion Output
    • Selectable Low Power PFM Mode for Light Load Operation with Out-of-Audio Option
  • USB On-the-Go (OTG) with Adjustable Output from 4.5 V to 5.5 V
    • Buck Converter with up-to 2-A Output
    • 94.5% Efficiency at 5-V, 1-A Output
    • Accurate Constant Current (CC) Limit
    • Output Short Protection
    • Selectable Low Power PFM Mode for Light Load Operation with Out-of-Audio Option
  • Single Input to Support USB Input Adapters
    • Supports 3.9-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 with 100-mA resolution) to Support USB2.0, USB3.0 Standard Adapters
    • Maximum Power Tracking by Input Voltage Limit up-to 5.5 V
    • Auto-Detect USB SDP, CDP, DCP, and Non-Standard Adapters
  • Input Current Optimizer (ICO) to Maximize Input Power without Overloading Adapters
  • Highest Battery Discharge Efficiency with 15-mΩ Battery Discharge MOSFET
  • Integrated ADC for System Monitoring (BUS Voltage and Current, BAT Voltage, Charge Current, SYS Voltage, and NTC and Die Temperature)
  • Narrow VDC (NVDC) Power Path Management
    • Instant-on Works with No Battery or Deeply Discharged Battery
    • Ideal Diode Operation in Battery Supplement Mode
  • Flexible Autonomous and I2C Mode for Optimal System Performance
  • High Integration includes all MOSFETs, Current Sensing and Loop Compensation
  • High Accuracy
    • ±0.4% Charge Voltage Regulation
    • ±7.5% Charge Current Regulation
    • ±7.5% Input Current Regulation
  • Safety
    • Battery Temperature Sensing in Charge and OTG Buck Mode
    • Thermal Regulation and Thermal Shutdown

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Parametrics Compare all products in Battery charger ICs

 
Number of series cells
Function
Cell chemistry
Charge current (Max) (A)
Operating Vin (Min) (V)
Operating Vin (Max) (V)
Absolute Vin (safety rating) (Max) ((V))
Battery charge voltage (Min) (V)
Battery charge voltage (Max) (V)
Features
Control interface
Control topology
Rating
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
BQ25882 BQ25881
2     2    
Charger     Charger    
Li-Ion/Li-Polymer     Li-Ion/Li-Polymer    
2     2    
3.9     3.9    
6.2     6.2    
20     20    
6.8     6.8    
9.2     9.2    
ICO
IINDPM
Integrated ADC
Integrated FET
Integrated LDO
JEITA BAT Temp Monitoring (Thermistor Pin)
OVP
Power Path
Thermal Regulation
USB OTG
USB C/PD
USB D+/D-/BC1.2
UVLO
VINDPM    
ICO
IINDPM
Integrated ADC
Integrated FET
Integrated LDO
JEITA BAT Temp Monitoring (Thermistor Pin)
OVP
Power Path
Thermal Regulation
USB OTG
USB C/PD
USB D+/D-/BC1.2
UVLO
VINDPM    
I2C     I2C    
Switch-Mode Boost     Switch-Mode Boost    
Catalog     Catalog    
-40 to 85     -40 to 85    
DSBGA | 25     VQFN | 24    
See datasheet (DSBGA)     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)