SLVSHN4 December 2023 TPSI3100
ADVANCE INFORMATION
The TPSI310x, TPSI311x, TPSI312x, and TPSI313x family uses a modulation scheme to transmit the switch enable (EN) state information across the isolation barrier. The transmitter modulates the EN signal with an internally generated, high frequency carrier, and differentially drives the primary winding of the isolation transformer. The receiver on the secondary side demodulates the received signal and asserts VDRV high or low based on the state information received.