Li-ion/Li-Polymer Battery Charger Accepting Two Power Sources

The ISL6299A is a fully integrated low-cost single-cell Li-ion or Li-polymer battery charger. The charger accepts two power inputs, normally one from a USB (Universal Serial Bus) port and the other from a desktop cradle. The ISL6299A is an ideal charger for smart handheld devices that need to communicate with a personal computer via USB.

Features

• Complete Charger for Single-Cell Li-ion/Polymer Batteries

• Dual Input Power Sources for Cradle and USB

• Low Component Count

• Integrated Pass Element

• Fixed 380mA USB Charge Current

• Programmable Cradle Charge Current

• Charge Current Thermaguard™ for Thermal Protection

• 28V Maximum Voltage for the Cradle Input

• Charge Indication

• Adapter Presence Indication

• Less than 0.5µA Leakage Current off the Battery when No Input Power Attached

• Programmable end-of-charge current with latch for Cradle Input

• Ambient Temperature Range: -40°C to 85°C

• No External Blocking Diode Required

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Smart Handheld Devices

• Cell Phones, PDAs, MP3 Players

• Digital Still Cameras

• Handheld Test Equipment