MAX8731ETI Datasheet PDF - Maxim Integrated

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