bq24721 bq24721C
www. ti. com. SLUS683F – NOVEMBER 2005 – REVISED APRIL 2009
ADVANCED MULTI-CHEMISTRY AND MULTI-CELL SYNCHRONOUS SWITCH-MODE CHARGER AND SYSTEM POWER SELECTOR
FEATURES
1
•2 High Efficiency NMOS-NMOS Synchronous Buck Converter With User-Selectable 300 kHz or 500 kHz frequency
• bq24721C Offers Softer Turn-On, Stronger Turn-Off
• SBS-Like(1) SMBus Interface for Control and Status Communications With Host
• Programmable Battery Voltage, Charge Current, and AC Adapter Current via SBS-Like SMBus Interface
• 0. 4% Charge Voltage Regulation Accuracy • 3% Charge Current Regulation Accuracy • 3% Adapter Current Regulation Accuracy
Dynamic Power Management (DPM)
• 2% Accuracy Integrated Charge and AC Adapter 20× Current Amplifier Output
• 3-Cell and 4-Cell Li-Ion Voltage Regulation 9 V, 12 V–14. 4 V, 16 V–19. 2 V
• Battery Pack Voltage Opera...
bq24721 PDF File
