MAX1535A

19-2848; Rev 1; 11/03 KIT ATION EVALU LE B A IL A AV Highly Integrated Level 2 SMBus Battery Charger General Description Features ♦ Compliant with Level 2 Smart Battery Charger Specifications Rev 1.1 ♦ Intel SMBus 2-Wire Serial Interface ♦ ±0.5% Charge-Voltage Accuracy ♦ 11-Bit Charge-Voltage Resolution ♦ ±3% Input Current-Limit Accuracy ♦ Uses Small (10mΩ) Current-Sense Resistors ♦ 8A Maximum Charge Current ♦ 6-Bit Input and Charge-Current Resolution ♦ 8V to 28V Input Voltage Range ♦ 175s Charge Safety Timer ♦ Automatic Selection of System Power Source ♦ Charges any Battery Chemistry (Li+, NiCd, NiMH, Lead Acid, etc.) MAX1535A The MAX1535A is a highly integrated, multichemistry battery charger that simplifies construction of advanced smart chargers with a minimum number of external components. It uses Intel’s system management bus (SMBus™) to control the charge voltage, charge current, and the maximum current drawn from the AC adapter. High efficiency is achieved through use of a constant offwww.DataSheet4U.com time step-down topology with synchronous rectification. In addition to support of the Smart Battery Charger Specifications Rev 1.1, the MAX1535A includes additional features. The maximum current drawn from the AC adapter is programmable to avoid overloads when supplying the load and the battery charger simultaneously. This enables the user to reduce the cost of the AC adapter. The MAX1535A provides a digital output that indicates the presence of an AC adapter. Bas...