Texas Instruments UCD3138 - Page 33

www.ti.com Digital PFC Description
12.3.4 Isolated UART Interface
The isolated UART interface shown in Figure 34 is used to communicate with another digital controller, for
example one used in a secondary referenced isolated DC-to-DC converter application.
Figure 34. Isolated UART and AC_DROP Signal Interface
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SLUU885B–March 2012–Revised July 2012 Digitally Controlled Single-Phase PFC Pre-Regulator
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