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 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. 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. Based on the presence or absence of the AC adapter, the MAX1535A automatically selects the appropriate source for supplying power to the system by controlling two external P-channel MOSFETs.