BQ24600 Standalone Synchronous Switch-mode Charge Controller | TI.com

BQ24600 (ACTIVE)

Standalone Synchronous Switch-mode Charge Controller

Standalone Synchronous Switch-mode Charge Controller - BQ24600
 

Description

The bq24600 is a highly integrated Li-ion or Li-polymer switch-mode battery-charge controller. It offers a constant-frequency synchronous PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, and charge status monitoring,

The bq24600 charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum level. An internal charge timer provides a safety backup. The bq24600 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.

Features

  • 1.2-MHz NMOS-NMOS Synchronous Buck Converter
  • Stand-Alone Charger Support for Li-Ion or Li-Polymer
  • 5-V – 28-V VCC Input Voltage Range and Supports
    1S-6S Battery Cells
  • Up to 10-A Charge Current and Adapter Current
  • High-Accuracy Voltage and Current Regulation
    • ±0.5% Charge-Voltage Accuracy
    • ±3% Charge-Current Accuracy
  • Integration
    • Internal Loop Compensation
    • Internal Soft Start
  • Safety
    • Input Overvoltage Protection
    • Battery Thermistor Sense Hot/Cold Charge Suspend
    • Battery Detection
    • Built-In 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 Power Converter
  • 30-ns Driver Dead-Time and 99.5% Max. Effective Duty Cycle
  • 16-Pin 3.5-mm × 3.5-mm QFN package
  • Energy Star Low Quiescent Current Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current

View more

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)
Pin/Package
BQ24600 BQ24610 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    
10     20     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    
Power Path
Temp Monitoring (Thermistor Pin)
UVLO    
IINDPM
OVP
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    
16VQFN     24VQFN     24VQFN     24VQFN     24VQFN     16VQFN     24VQFN     16VQFN