BQ25886 Standalone, 2-cell, 2-A boost-mode battery charger for USB input | TI.com

BQ25886
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Standalone, 2-cell, 2-A boost-mode battery charger for USB input

 

Description

The BQ25886 is a highly-integrated 2-A boost switch-mode 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.

Features

  • 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

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Parametrics

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Part number Order 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)
BQ25886 Order now 2     Charger     Li-Ion/Li-Polymer     2.2     3.9     6.2     20     8.2     8.8     ICO
IINDPM
Integrated FET
JEITA BAT Temp Monitoring (Thermistor Pin)
OVP
Power Path
Thermal Regulation
USB OTG
USB D+/D-/BC1.2
UVLO
VINDPM    
Standalone
Standalone (RC-Settable)    
Switch-Mode Boost     Catalog     -40 to 85     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
BQ25882 Order now 2     Charger     Li-Ion/Li-Polymer     2.2     3.9     6.2     20     6.8     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    
I2C     Switch-Mode Boost     Catalog     -40 to 85     DSBGA | 25     25DSBGA: 5 mm2: 2.2 x 2.2 (DSBGA | 25)    
BQ25883 Order now 2     Charger     Li-Ion/Li-Polymer     2.2     3.9     6.2     20     6.8     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    
I2C     Switch-Mode Boost     Catalog     -40 to 85     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
BQ25887 Order now 2     Charger     Li-Ion/Li-Polymer     2.2     3.9     6.2     20     6.8     9.2     ICO
IINDPM
Integrated ADC
Integrated FET
JEITA BAT Temp Monitoring (Thermistor Pin)
OVP
Thermal Regulation
UVLO
VINDPM
Cell Balancing    
I2C     Switch-Mode Boost     Catalog     -40 to 85     VQFN | 24     24VQFN: 16 mm2: 4 x 4 (VQFN | 24)