The ISL88731 is a highly integrated Lithium-ion battery charger controller, programmable over the SMBus system management bus (SMBus). The ISL88731 is intended to be used in a smart battery charger (SBC) within a smart battery system (SBS) that throttles the charge power such that the current from the AC-adapter is automatically limited. High efficiency is achieved with a DC/DC synchronous-rectifier buck converter, equipped with diode emulation for enhanced light load efficiency and system bus boosting prevention. The ISL88731 charges one to four Lithium-ion series cells, and delivers up to 8A charge current. Integrated MOSFET drivers and bootstrap diode result in fewer components and smaller implementation area. Low offset current-sense amplifiers provide high accuracy with 10mΩ sense resistors. The ISL88731 provides 0.5% end-of-charge battery voltage accuracy. Application Note 1404
ISL88731EVAL2Z and ISL88731CEVAL2Z Evaluation
Boards Setup Procedure
Introduction What is Needed
The ISL88731 and ISL88731C are highly integrated battery The following materials are recommended to perform testing:
charger controllers for Li-ion/Li-ion polymer batteries with One AC adaptor or one adjustable 25V/6A DC power supply
SMBus interface controlling charge voltage, charge current and
input current limiting. The evaluation board includes a USB to Two adjustable electronic loads with constant curre……