bq24070
bq24071
www.ti.com
SLUS694B–MARCH 2006–REVISED AUGUST 2006
FUNCTIONAL DESCRIPTIONS
CHARGE CONTROL
The bq24070/1 supports a precision Li-ion or Li-polymer charging system suitable for single-cell portable
devices. See a typical charge profile, application circuit, and an operational flow chart in Figure 1 through
Figure 3, respectively.
Pre-Conditioning
Phase
Current Regulation Phase
Voltage Regulation and Charge Termination Phase
Regulation
Voltage
Regulation
Current
Charge
Voltage
Minimum
Charge
Charge
Complete
Voltage
Charge
Current
Pre−
Conditioning
and Term
Detect
UDG−04087
Figure 1. Charge Profile
9
Submit Documentation Feedback
TI [ TEXAS INSTRUMENTS ]
