The TPS53676 telemetry system continually monitors the average current in each phase, and compares it to the average current of all phases assigned the channel. For each phase, whenever the condition described by the equation below is satisfied, the current share warning condition is detected. Configure the current share warning threshold through the MFR_PROTECTION_CONFIG command.

where

• I_PHASE is the current in each individual phase of a channel
• I_SUM is the total current in that channel
• N_ϕ is the total number of phases assigned to that channel
• I_SHAREW is the programmed ISHARE warning in amperes

In response to the current share warning condition, TPS53676 sets the appropriate status bits in STATUS_WORD and STATUS_IOUT and asserts the SMB_ALERT# line if these bits are not masked.