VBB1TST2COMP3GND4VDD5TST16BSTSYN7LEDCTRL18LEDCTRL29SCLK10CSB11SDI12SDO13TST214VLED215VLED116IBCK2SENS+17IBCK2SENS–18VINBCK219LBCKSW220LBCKSW121VINBCK122IBCK1SENS–23IBCK1SENS+24VBOOSTBCK25VBOOSTM3V26VBOOST27IBSTSENS–28IBSTSENS+29GNDP30VGATE31VDRIVE32EP33