TIDUE53I march 2018 – july 2023 TMS320F28P550SJ , TMS320F28P559SJ-Q1
To generate the isolated bias supplies for the AMC1306M05 isolated modulators, the SN6505B transformer driver is used to drive a Würth 750313638 transformer in a push-pull configuration. This is a recommended configuration from the SN6505B data sheet to build a 5-V → 6-V isolated supply.
The 6-V output is used to feed a TLV70450 LDO to generate a clean 5-V rail for the analog and digital circuitry of the AMC1306M05.