BQ24610 具有 5V–28V VCC 输入的独立同步开关模式锂离子或锂聚合物电池充电器 | 德州仪器 TI.com.cn

BQ24610 (正在供货)

具有 5V–28V VCC 输入的独立同步开关模式锂离子或锂聚合物电池充电器

具有 5V–28V VCC 输入的独立同步开关模式锂离子或锂聚合物电池充电器 - BQ24610
 

描述

The bq2461x is a highly integrated Li-ion or Li-polymer switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring.

The bq2461x charges the battery in three phases: preconditioning, constant current, and constant voltage.

Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The bq2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.

特性

  • 600-kHz NMOS-NMOS Synchronous Buck
    Converter
  • Stand-Alone Charger Support for Li-Ion or Li-
    Polymer
  • 5-V to 28-V VCC Input Operating Range and
    Supports 1- to 6-Battery Cells (bq24610)
  • 5-V to 24-V VCC Input Operating Range and
    Supports 1- to 5-Battery Cells (bq24617)
  • Up to 10-A Charge Current and Adapter Current
  • High-Accuracy Voltage and Current Regulation
    • &plusm;0.5% Charge Voltage Accuracy
    • &plusm;3% Charge Current Accuracy
    • &plusm;3% Adapter Current Accuracy
  • Integration
    • Automatic System Power Selection From
      Adapter or Battery
    • Internal Loop Compensation and Soft Start
    • Dynamic Power Management
  • Safety Protection
    • Input Overvoltage Protection
    • Battery Thermistor Sense Hot and Cold
      Charge Suspend
    • Battery Detection
    • Reverse Protection Input FET
    • Programmable Safety Timer
    • Charge Overcurrent Protection
    • Battery Short Protection
    • Battery Overvoltage Protection
    • Thermal Shutdown
  • Status Outputs
    • Adapter Present
    • Charger Operation Status
  • Charge Enable Pin
  • 6-V Gate Drive for Synchronous Buck Converter
  • 30-ns Driver Dead-Time and 99.5% Maximum
    Effective Duty Cycle
  • Energy Star Low Quiescent Current Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current
  • APPLICATIONS
    • Netbooks, Mobile Internet Devices, and Ultra-
      Mobile PCs
    • Personal Digital Assistants (PDAs)
    • Handheld Terminals
    • Industrial and Medical Equipment
    • Portable Equipment

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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
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)
Pin/Package
BQ24610 BQ24600 BQ24616 BQ24617 BQ24618 BQ24620 BQ24630 BQ24640
1
2
3
4
5
6    
1
2
3
4
5
6    
1
2
3
4
5
6    
1
2
3
4
5    
1
2
3
4
5
6    
1
2
3
4
5
6
7    
1
2
3
4
5
6
7    
1
2
3
4
5
6
7
8    
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     Lithium phosphate     Lithium phosphate     SuperCap    
20     10     20     20     10     20     20     20    
5     5     5     5     4.7     5     5     5    
28     28     28     24     28     28     28     28    
33     33     33     33     33     33     33     33    
2.1     2.1     2.1     2.1     2.1     1.8     1.8     2.1    
26     26     26     22     26     26     26     26    
IINDPM
OVP
Power Path
Temp Monitoring (Thermistor Pin)
UVLO    
Power Path
Temp Monitoring (Thermistor Pin)
UVLO    
IINDPM
JEITA BAT Temp Monitoring (Thermistor Pin)
Power Path    
IINDPM
Power Path
Temp Monitoring (Thermistor Pin)    
IINDPM
Power Path
Temp Monitoring (Thermistor Pin)    
Temp Monitoring (Thermistor Pin)
UVLO    
IINDPM
Temp Monitoring (Thermistor Pin)
UVLO    
Temp Monitoring (Thermistor Pin)
UVLO    
Standalone (RC-Settable)     Standalone (RC-Settable)     Standalone (RC-Settable)     Standalone (RC-Settable)     Standalone (RC-Settable)     Standalone (RC-Settable)     Standalone (RC-Settable)     Standalone (RC-Settable)    
Switch-Mode Buck     Switch-Mode Buck     Switch-Mode Buck     Switch-Mode Buck     Switch-Mode Buck     Switch-Mode Buck     Switch-Mode Buck     Switch-Mode Buck    
Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog     Catalog    
-40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
24VQFN     16VQFN     24VQFN     24VQFN     24VQFN     16VQFN     24VQFN     16VQFN