General Description
●The MAX8731 is an SMBus™ programmable multichemistry battery charger. The MAX8731 uses a minimal command set to easily program the charge voltage, charge current, and adapter current limit. The MAX8731 charges one to four Li+ series cells and delivers up to 8A charge current. The MAX8731 drives n-channel MOSFETs for improved efficiency and reduced cost. Low-offset current-sense amplifiers provide high accuracy with 10mΩ sense resistors.
●Features
●♦0.5% Battery Voltage Accuracy
●♦3% Input Current-Limit Accuracy
●♦3% Charge-Current Accuracy
●♦SMBus 2-Wire Serial Interface
●♦Cycle-by-Cycle Current Limit
● Battery Short-Circuit Protection
● Fast Response for Pulse Charging
● Fast System-Load-Transient Response
●♦Dual-Remote-Sense Inputs
●♦Monitor Outputs for Adapter Current (4% Accuracy) AC Adapter Detection
●♦11-Bit Battery Voltage Setting
●♦6-Bit Charge-Current/Input-Current Setting
●♦8A (max) Battery Charger Current
●♦11A (max) Input Current
●♦+8V to +26V Input Voltage Range
●♦Charges Li+, NiMH, and NiCd Battery Chemistries MAX8731
