L6924D013TR

L6924D013TR is a fully monolithic battery charger dedicated to single-cell Li-Ion/Polymer battery packs. It is the ideal solution for space-limited applications, like handheld equipment, and digital cameras. It integrates all of the power elements (the power MOSFET, reverse blocking diode and the sense resistor) in a small VFQFPN16 (3 x 3 mm) package. When an external voltage-regulated wall adapter is used, the L6924D works in linear mode, and charges the battery in a constant current/constant voltage (CC/CV) profile. Moreover, when a current-limited adapter is used, the device can operate in quasi-pulse mode, dramatically reducing the power dissipation. Regardless of the charging approach, a closed-loop thermal control avoids device overheating. The device has an operating input voltage ranging from 2.5V to 12V. Typical applications include handheld devices, digital cameras, standalone chargers and USB-powered chargers.

• Ideal for coke and graphite anode single-cell LI -ION packs
• Both linear and quasi-pulse operation
• USB BUS-compatible
• Programmable charge current up to 1A, programmable pre-charge current, programmable charge timer
• Programmable end-of-charge current, programmable pre-charge voltage threshold
• Programmable output voltage at 4.1V and 4.2V, with ±1 % output voltage accuracy
• Flexible charge process termination
• Status outputs to drive LEDs or to interface with a host processor