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UCD3138 - Highly Integrated Digital Controller

General Description

The UCD3138 is a digital power supply controller offering superior levels of integration and performance in a single-chip solution.

The flexible nature of the UCD3138 makes it suitable for a wide variety of power conversion applications.

Key Features

  • Digital Control of up to 3 Independent Feedback Loops.
  • Dedicated PID-Based hardware.
  • 2-Pole/2-Zero Configurable.
  • Nonlinear Control.
  • Up to 16 MHz Error Analog-to-Digital Converter (EADC).
  • Configurable Resolution as Small as 1mV/LSB.
  • Automatic Resolution Selection.
  • Up to 8x Oversampling.
  • Hardware-Based Averaging (up to 8x).
  • 14-Bit Effective Digital-to-Analog Converter (DAC).
  • Adaptive Sample Trigger.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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UCD3138 SLUSAP2J – MARCH 2012 – REVISED NOVEMBER 2021 UCD3138 Highly Integrated Digital Controller for Isolated Power 1 Features • Digital Control of up to 3 Independent Feedback Loops – Dedicated PID-Based hardware – 2-Pole/2-Zero Configurable – Nonlinear Control • Up to 16 MHz Error Analog-to-Digital Converter (EADC) – Configurable Resolution as Small as 1mV/LSB – Automatic Resolution Selection – Up to 8x Oversampling – Hardware-Based Averaging (up to 8x) – 14-Bit Effective Digital-to-Analog Converter (DAC) – Adaptive Sample Trigger Positioning • Up to 8 High Resolution Digital Pulse Width Modulated (DPWM) Outputs – 250-ps Pulse Width Resolution – 4-ns Frequency Resolution – 4-ns Phase Resolution – Adjustable Phase Shift Between Outputs – Adjustable Dead-band Between Pairs – Cycle-by-Cy