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L6924U Datasheet(PDF) 1 Page - STMicroelectronics |
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L6924U Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 38 page May 2008 Rev 1 1/38 38 L6924U USB compatible battery charger system with integrated power switch for Li-Ion/Li-Polymer Features ■ Fully integrated solution, with power MOSFET, reverse blocking diode, sense resistor, and thermal protection ■ Charges single-cell Li-Ion batteries from selectable AC adapter or USB Input ■ Programmable charge current up to 1 A in AC adapter mode ■ Programmable charging current in USB mode for both high power and low power inputs ■ 4.2 V output voltage with ± 1 % accuracy ■ Linear or quasi-pulse operating mode ■ Closed loop thermal control ■ Programmable end-of-charge current ■ Programmable charge timer ■ (NTC) or (PTC) thermistor interface for battery temperature monitoring and protection ■ Status outputs to drive LEDs or to interface with a host processor ■ Small VFQFPN 16-leads package (3 mm x 3 mm) Applications ■ PDAs, GPS and MP3 players ■ USB powered devices ■ Cellular phones ■ Digital still cameras ■ Standalone chargers ■ Wireless appliances VFQFPN16 Table 1. Device summary Order codes Package Packaging L6924U VFQFPN16 Tube L6924U013TR Tape and reel www.st.com |
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