BQ24090 具有 10kΩ NTC 的 1 A 单输入单节锂离子电池充电器 | 锂离子线性电池充电器 IC | 德州仪器 TI.com.cn

BQ24090 (正在供货)

具有 10kΩ NTC 的 1 A 单输入单节锂离子电池充电器 | 锂离子线性电池充电器 IC

具有 10kΩ NTC 的 1 A 单输入单节锂离子电池充电器 | 锂离子线性电池充电器 IC - BQ24090
 

描述

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.

特性

  • 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

All other trademarks are the property of their respective owners

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参数 与其它产品相比 电池充电器 IC

 
Number of Series Cells
Function
Cell Chemistry
Battery Charge Voltage (Min) (V)
Battery Charge Voltage (Max) (V)
Features
Charge Current (Max) (A)
Control Interface
Control Topology
Rating
Operating Temperature Range (C)
Pin/Package
Operating Vin (Min) (V)
Operating Vin (Max) (V)
Absolute Vin (safety rating) (Max) ((V))
BQ24090 BQ24232 BQ25100H BQ25101
1     1     1     1    
Charger     Charger     Charger     Charger    
Li-Ion/Li-Polymer     Li-Ion/Li-Polymer     Li-Ion/Li-Polymer     Li-Ion/Li-Polymer    
4.2     4.2     4.35     4.2    
4.2     4.2     4.35     4.2    
Temp Monitoring (Thermistor Pin)
Thermal Regulation
Vin DPM (OK for Solar Power Source)    
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)    
1     0.5     0.25     0.25    
Standalone (RC-Settable)     Standalone (RC-Settable)     Standalone (RC-Settable)     Standalone (RC-Settable)    
Linear     Linear     Linear     Linear    
Catalog     Catalog     Catalog     Catalog    
0 to 125     -40 to 85     0 to 125     0 to 125    
10MSOP-PowerPAD     16VQFN     6DSBGA     6DSBGA    
4.45     4.35     4.45     4.45    
6.45     10.2     30     30    
12     28     30     30