LTC4070
Overview
The LTC®4070 allows simple charging of Li-Ion/Polymer batteries from very low current, intermittent or continuous charging sources. The 450nA to 50mA operating current makes charging possible from previously unusable sources.
- Low Operating Current (450nA)
- 1% Float Voltage Accuracy Over Full Temperature and Shunt Current Range
- 50mA Maximum Internal Shunt Current (500mA with External PFET)
- Pin Selectable Float Voltage Options:
- 0V, 4.1V, 4.2V
- Ultralow Power Pulsed NTC Float Conditioning for Li-Ion/Polymer Protection
- Suitable for Intermittent, Continuous and Very Low Power Charging Sources
- Low and High Battery Status Outputs
- Simple Low Voltage Load Disconnect Application
- Thermally Enhanced, Low Profile (0.75mm) 8-Lead (2mm × 3mm) DFN and MSOP Packages
