View max1647 datasheet:

19-1158; Rev 0; 12/96 Chemistry-Independent Battery Chargers _______________General Description ____________________________Features The MAX1647/MAX1648 provide the power control neces- ¦ Charges Any Battery Chemistry: sary to charge batteries of any chemistry. In the MAX1647, Li-Ion, NiCd, NiMH, Lead Acid, etc. all charging functions are controlled via the Intel System ¦ Intel SMBus 2-Wire Serial Interface (MAX1647) Management Bus (SMBus™) interface. The SMBus 2-wire serial interface sets the charge voltage and current, and ¦ Intel/Duracell Level 2 Smart Battery Compliant provides thermal status information. The MAX1647 func- (MAX1647) tions as a level 2 charger, compliant with the Duracell/Intel ¦ 4A, 2A, or 1A Maximum Battery-Charge Current Smart Battery Charger Specif