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

The ISL6293 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 another one from a desktop cradle. The ISL6293 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

• Accept Two Power Sources

• Low Component Count

- Integrated Pass Element

- Integrated Charge-Current Sensor with 10 Accuracy

- No External Blocking Diode Required

• Charge Current Thermal Foldback for Thermal Protection

• 28V Maximum Voltage for the Cradle Input

• Charge Indication

• Adapter Presence Indication

• Less than 1µA Leakage Current off the Battery when No Input Power Attached

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

• Thermally-Enhanced 3x3 DFN Package

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Smart Handheld Devices

• Cell Phones, PDAs, MP3 Players

• Digital Still Cameras

• Handheld Test Equipment