MAX2003A Datasheet | Maxim Integrated

MAX2003/MAX2003A 19-0371; Rev 4; 5/97 EVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL Ni Cd/Ni MH Battery Fast-Charge Controllers General Description The MAX2003/MAX2003A are fast-charge battery chargers (with conditioning) for Ni Cd (nickel cadmium) or Ni MH (nickel-metal hydride) rechargeable batteries. The MAX2003A has the same Features as the MAX2003 with an additional pulsed trickle-charge mode to prevent dendrite formation in Ni MH batteries. Each can be configured as a switch-mode current regulator or as a gating controller for an external current source. Switch-mode current regulation provides efficient energy transfer, reducing power dissipation and the associated heating. Gating control of an external current source requires minimal ponents, saving space and cost. On-chip algorithms determine charge termination, so the MAX2003/MAX2003A can be used as stand-alone chargers. Fast-charge termination is acplished by five methods: temperature slope, negative voltage change, maximum...