, specifically packaged in a (RHA or RGC package codes). It serves as a bridge between flexible DSP-based microcontrollers and fast, dedicated analog controllers, optimized for high-performance isolated power supplies. Core Architecture
In high-power systems, PFC is required to maintain input current in phase with the input voltage. The UCD3138 manages this via a dedicated DPP configured for Average Current Mode Control. The controller monitors the input voltage waveform and shapes the inductor current accordingly. The hardware multiplier assists in the rapid calculations needed for the multiplication of the voltage feed-forward term, ensuring high Power Factor (PF > 0.99) and low Total Harmonic Distortion (THD). ucd3138r
UCD3138 data sheet, product information and support | TI.com , specifically packaged in a (RHA or RGC package codes)
UCD3138 Highly Integrated Digital Controller for Isolated Power The UCD3138 manages this via a dedicated DPP
Features 7 high-speed analog comparators for cycle-by-cycle current limiting and programmable fault protection.
The device centers around , which manage high-speed feedback loops without taxing the main processor.
The device is built to handle complex power topologies by offloading high-speed loop management from the main processor to dedicated hardware.
