CONSONANCE
500mA LiFePO4 Battery Charger CN3058
General Description:
The CN3058 is a complete constant-current /constan...
CONSONANCE
500mA LiFePO4 Battery Charger CN3058
General Description:
The CN3058 is a complete constant-current /constant
voltage linear charger for single cell LiFePO4 rechargeable batteries. The device contains an on-chip power
MOSFET and eliminates the need for the external sense resistor and blocking diode. Its low external component count makes CN3058 ideally suited for portable applications. Thermal feedback regulates the charge current to limit the die temperature during high power operation or high ambient temperature. The regulation
voltage is internally fixed at 3.6V with 1.5% accuracy, it can also be adjusted with an external resistor. The charge current can be programmed externally with a single resistor. When the input supply (wall adapter or USB supply) is removed, the CN3058 automatically enters a low power sleep mode , dropping the battery drain current to less than 3uA. Other features include under
voltage lockout, automatic recharge, battery temperature sensing and cha...