CN3082

CONSONANCE Multi-Chemistry Battery Charger for Solar-Powered Systems CN3082 General Description: CN3082 is a mutli-chemistry battery charge control chips for single cell lithium batteries, lithium iron phosphate and single or two to four nickel-metal hydride batteries. The device contains an on-chip power MOSFET and eliminates the need for the external sense resistor and blocking diode. CN3082 is specifically designed to work within USB power specifications. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. Chip integrates a high-precision voltage comparator, with 1% accuracy, you can accurately set the constant current charge termination voltage. An on-chip 8-bit ADC can adjust charging current automatically based on the output capability of input power supply, so CN3082 is ideally suited for solar powered system. The charge current can be programmed externally with a single resistor. When the input supply is removed, the CN3082 automatically enters a low power sleep mode , dropping the battery drain current to less than 3uA. Other features include undervoltage lockout, automatic recharge, battery temperature sensing and charging/termination indicator. The CN3082 is available in 8-pin SOP8 package. Applications:  Cell Phone  Digital Camera  Electronic Dictionary  Portable Devices  The need for lithium batteries, nickel metal hydride batteries, lithium iron phosphate and lead-acid battery...