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