Li-ion/Li Polymer Linear Battery Charger

The ISL6291 provides a low-cost integrated charger solution for single-cell Li-ion and Li Polymer rechargeable batteries. No external pass element, current sensing resistor, or reverse blocking diode is required with this solution.

Features
• Integrated Linear Pass Element
• Integrated Charge Current Sensor
• No External Reverse Blocking Diode Required
• 1% Voltage Accuracy
• Programmable Current Limit Up to 2.0A
• Programmable End-of-Charge Current
• Trickle Charge an Over Discharged Battery
• Charge Current Thermal Foldback
• Simple Interface for Low-Cost Thermistor
• Accepts USB Bus Power
• Ambient Temperature Range: -20°C to 70°C
• Thermally-Enhanced 5x5 QFN Package (θJA  = 33°C/W)
• Pb-Free Available (RoHS Compliant)

Applications
• Handheld Devices
• Cell Phones
• PDAs
• Stand-Alone Chargers
• USB Bus-Powered Chargers