1A, Single Input, Single Cell Li-Ion Battery Charger w/ 10kΩ NTC | Li-ion Linear Battery Charger IC - BQ24090

BQ24090 (ACTIVE)

1A, Single Input, Single Cell Li-Ion Battery Charger w/ 10kΩ NTC | Li-ion Linear Battery Charger IC

 

Description

The bq2409x series of devices are highly integrated Li-ion and Li-Pol linear chargers devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.

The bq2409x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.

The battery is charged in three phases: conditioning, constant current and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if an internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination. The pre-charge current and termination current threshold are programmed via an external resistor. The fast charge current value is also programmable via an external resistor.

Features

  • Charging
    • 1% Charge Voltage Accuracy
    • 10% Charge Current Accuracy
    • Pin Selectable USB 100-mA and 500-mA
      Maximum Input Current Limit
    • Programmable Termination and Precharge
      Threshold
  • Protection
    • 6.6 V Over-Voltage Protection
    • Input Voltage Dynamic Power Management
    • 125°C Thermal Regulation; 150°C Thermal
      Shutdown Protection
    • OUT Short-Circuit Protection and ISET Short
      Detection
    • Operation Over JEITA Range via Battery
      NTC – ½ Fast-Charge-Current at Cold, 4.06V
      at Hot, bq24092/3
    • Fixed 10-Hour Safety Timer
  • System
    • Automatic Termination and Timer Disable
      Mode (TTDM) for Absent Battery Pack With
      Thermistor
    • Status Indication – Charging/Done
    • Available in Small 10-Pin MSOP Package
  • APPLICATIONS
    • Smart Phones
    • PDAs
    • MP3 Players
    • Low-Power Handheld Devices

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Parametrics Compare all products in Battery Charger IC

 
# Series Cells
Function
Cell Chemistry
Battery Charge Voltage (Min) (V)
Battery Charge Voltage (Max) (V)
Special Features
Charge Current (Max) (A)
Control Interface
USB Feature
Rating
Operating Temperature Range (C)
Pin/Package
Operating Vin (Min) (V)
Operating Vin (Max) (V)
Absolute Vin (safety rating) (Max) ((V))
BQ24090 BQ21040 BQ24040 BQ24045 BQ24050 BQ24091 BQ24092 BQ24093 BQ24095 BQ24232 BQ25100 BQ25100H BQ25101 BQ25120 BQ25121
1    1    1    1    1    1    1    1    1    1    1    1    1    1    1   
Charger    Charger    Charger    Charger    Charger    Charger    Charger    Charger    Charger    Charger    Charger    Charger    Charger    Charger    Charger   
Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer    Li-Ion/Li-Polymer   
4.2    4.2    4.2    4.35    4.2    4.2    4.2    4.2    4.35    4.2    4.2    4.35    4.2    3.6    3.6   
4.2    4.2    4.2    4.35    4.2    4.2    4.2    4.2    4.35    4.2    4.2    4.35    4.2    4.65    4.65   
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
Temp Monitoring (Thermistor Pin)    JEITA BAT Temp Monitoring (Thermistor Pin)
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
JEITA BAT Temp Monitoring (Thermistor Pin)
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
JEITA BAT Temp Monitoring (Thermistor Pin)
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
JEITA BAT Temp Monitoring (Thermistor Pin)
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
JEITA BAT Temp Monitoring (Thermistor Pin)
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
Integrated FET
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation   
Power Path
Temp Monitoring (Thermistor Pin)
Vin DPM (OK for Solar Power Source)   
JEITA BAT Temp Monitoring (Thermistor Pin)
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
JEITA BAT Temp Monitoring (Thermistor Pin)
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
JEITA BAT Temp Monitoring (Thermistor Pin)
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)   
Integrated Buck Converter
Integrated LDO
JEITA BAT Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation   
Integrated Buck Converter
Integrated LDO
JEITA BAT Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation   
1    0.8    1    1    1    1    1    1    1    0.5    0.25    0.25    0.25    0.3    0.3   
Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)    Standalone (RC-Settable)      I2C    I2C   
N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A    N/A   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
0 to 125    0 to 125    0 to 125        -40 to 150    -40 to 150    -40 to 150    0 to 125    -40 to 85    0 to 125    0 to 125    0 to 125    -40 to 85    -40 to 85   
10MSOP-PowerPAD    6SOT-23    10WSON    10WSON    10WSON    10MSOP-PowerPAD    10MSOP-PowerPAD    10MSOP-PowerPAD    10MSOP-PowerPAD    16QFN    6DSBGA    6DSBGA    6DSBGA    25DSBGA    25DSBGA   
4.45    3.5    3.5    3.5    3.5    4.45    4.45    4.45    4.45    4.35    4.45    4.45    4.45    3.4    3.4   
6.45    28    28    28    28    6.45    6.45    6.45    6.45    10.2    6.45    30    30    5.5    5.5   
12    30    30    30    30    12    12    12    12    28    30    30    30    20    20   

WEBENCH® Designer BQ24090

Battery Specifications:
Chemistry Lithium Ion/Lithium Polymer
  Series Parallel
Cell Count
Cell Capacity  mAh  
Total Capacity mAh  
Charger Specifications:
  Min   Max Range
Vin  V 4.88 to 6.45V
Iin  A ≤ 1.0A
Vchg  V 4.16 to 4.23V
Ichg  A ≤ 1.0A
Ambient Temp °C -40 to 85°C