LM3647

LM3647 Universal Battery Charger for Li-Ion, Ni-MH and Ni-Cd Batteries LM3647 OBSOLETE September 22, 2011 Universal Battery Charger for Li-Ion, Ni-MH and Ni-Cd Batteries General Description The LM3647 is a charge controller for Lithium-Ion (Li-Ion), Nickel-Metal Hydride (Ni-MH) and Nickel-Cadmium (Ni-Cd) batteries. The device can use either a pulsed-current charging or a constant-current charging technique. The device can also be configured to discharge before charging. Throughout the charging sequence the LM3647 monitors voltage and/or temperature and time in order to terminate charging. Charge termination methods are: Negative delta voltage (−ΔV) Optional: Delta temperature/delta time (ΔT/Δt) Backup: Maximum temperature Backup: Maximum time Backup: Maximum voltage If both voltage and temperature fail to trigger the termination requirements, then the maximum time (configured by external hardware) steps in which terminates the charging. In Ni-Cd/Ni-MH mode,...