SLAAED9 November 2023 TAA5412-Q1 , TAC5311-Q1 , TAC5312-Q1 , TAC5411-Q1 , TAC5412-Q1
The MICBIAS load data is divided into two page 1 registers. DIAG_MON_MSB_MBIAS (Page 1, address 0x58) contains the MSB data byte of the MICBIAS load current. DIAG_MON_LSB_MBLOAD (Page 1, address 0x57) contains the LSB data nibble of the MICBIAS load current. The supported monitoring range is from 0 mA to 50 mA. The following equation shows how to convert this raw binary data to the MICBIAS load current.
The MICBIAS load current measurement is not trimmed for gain and offset error and is intended only as an auxiliary feature for applications that want a rough estimate of the load conditions. The accuracy is approximately the same as the threshold step size of 0.117 mA. If precision load monitoring is required, using an external sensor is recommended.