9.3 Current Sense ResistorThe RSNS1 and RSNS2 are current sense resistors. 10 mΩshould be used for RSNS1 to sense IBUS current, 5 mΩ or10 mΩ used for RSNS2 to sense IBAT current (10 mΩsupports higher battery current limit accuracy, and 5 mΩsupports higher efficiency). Resistor of 1% or higher accuracyand low temperature coefficient is recommended.Note: If the user wants to use other resistor values, pleasecontact factory for support.The resistor power rating and temperature coefficient shouldbe considered. The power dissipation is roughly calculated asP=I2R, and I is the highest current flowing through the resistor.The resistor power rating should be higher than thecalculated value.Normally the resistor value is varied if the temperatureincreased and the variation is decided by temperaturecoefficient. If high accuracy of current limit is required, selectlower temperature coefficient resistor as much as possible.