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L6924D Datasheet(PDF) 1 Page - STMicroelectronics |
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L6924D Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 5 page DATA BRIEF For further information contact your local STMicroelectronics sales office. Rev 1 July 2005 CD00061067 1/5 5 L6924D Li-Ion/Li-Polymer Battery Charger System with Integrated Power Switch Features ■ Fully integrated solution with Power pass MOSFET, reverse blocking diode, sense resistor and thermal protection ■ Ideal for Coke and Graphite anode Single cell Li-Ion packs ■ Both Linear and Quasi Pulse operation ■ Programmable charge current ■ Programmable Pre-Charge voltage threshold ■ ±1% output voltage accuracy ■ Status outputs to drive LEDs or Host Processor interface ■ Programmable charge timer and charge end current ■ Small VFQFPN package (3mm x 3mm) ■ Low thermal resistance: 80°C/W ■ Charge current thermal loop Applications ■ PDA's ■ Handheld Devices ■ Cellular Phones ■ Digital Cameras ■ Stand-alone Chargers ■ Usb Powered Chargers ■ Mp3 Players Description The L6924D is a fully monolithic linear battery charger, ideal for coke and graphite anode single cell Li-Ion packs that allows a charge management system in a very compact application. It is the ideal way for space limited applications, like PDA's, hand held, cellular phones and digital cameras. It is realized in BCD6 technology and, in a small VFQFPN 3x3 16 pins package, that integrates all the power elements (the Power pass MOSFET, the reverse blocking diode and the sense resistor). The maximum application flexibility of the L6924D, is given by the possibility of programming all the features (like pre-charging current, charging current, the pre-charging voltage threshold, the end of charge current threshold and the charging time). When a real basic external wall adapter is used, the L6924D works in Linear Mode and charges the battery in a CC/CV (Constant current/ Constant voltage) profile. Order codes VFQFPN 16 Part number Package Packing L6924D VFQFPN 16 Tube www.st.com |
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