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Part No.	UCD3138RGCT
Manufacturer	TI1
Size	1Mb
Pages	68 pages
Description	Highly Integrated Digital Controller for Isolated Power

Datasheet Summary with AI

# UCD3138 Digital Controller

## Overview
A highly integrated digital controller for isolated power applications, featuring a flexible architecture and comprehensive control features. Ideal for AC-DC and isolated DC-DC converters.

## Features
️· Control: PID-based control loops, PWM outputs with 250ps resolution, multiple modulation schemes.
️· Communication: PMBus, UART for configuration and monitoring.
️· Peripherals: EADC, timers, fault protection, current sharing.
️· Memory: 32KB Program Flash, 2KB Data Flash, 4KB Data RAM.
️· Protection: Cycle-by-Cycle Current Limiting, external fault inputs.
️· Package Options: 64-Pin QFN, 40-Pin QFN

## Electrical Specifications
️· Operating Temperature: -40°C to 125°C
️· Supply Voltage: Refer to datasheet for specific ratings.

## Functional Overview
️· ARM Processor: 32-bit ARM7TDMI-S microcontroller for real-time control and communication.
️· Digital Control Loop: Dedicated EADC and PID compensator for precise regulation.

️· Communication Ports: PMBus and UART interfaces for external control and monitoring.

## Peripherals
️· DPWM: Digital Pulse Width Modulation outputs for efficient switching control.
️· EADC: Error Analog to Digital Converter for precise feedback monitoring.
️· Timers: Versatile timers for various control and protection functions.
️· Fault Protection: Comprehensive fault detection and protection mechanisms.