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Part No.	UCD3138
Manufacturer	TI1
Size	3Mb
Pages	89 pages
Description	Highly Integrated Digital Controller for Isolated Power

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# UCD3138 Highly Integrated Digital Controller for Isolated Power

## 1 Device Overview

️· Features: Digital control of up to 3 independent feedback loops, high-resolution EADC, up to 8 DPWM outputs, configurable feedback and modulation methods, high efficiency & light load management, fast input voltage feed forward, current sharing support, feature-rich fault protection, and internal temperature sensor.
️· Applications: Power supplies and telecom rectifiers, power factor correction, isolated DC-DC modules.
️· Description: A fully programmable solution offering superior integration and performance for various power conversion applications, particularly AC-DC and isolated DC-DC designs.

## 2 Device Comparison

️· ARM7TDMI-S Core Processor: 31.25 MHz
️· Flash Memory: 32 KB Program, 2 KB Data
️· RAM: 4 KB
️· DPWM Outputs: Up to 8, 250-ps resolution
️· ADC Channels: 14 (64-Pin) / 7 (40-Pin)
️· Package Options: 64-Pin QFN, 40-Pin QFN

## 3 Pin Configuration

️· Key Pins: AGND, V33DIO, ADC Inputs, DPWM Outputs, UART/PMBus, Fault Inputs, and Temperature Sensor.

️· Pin Attributes: Detailed pinout information provided for both 64-Pin QFN (UCD3138RGC) and 40-Pin QFN packages.
️· Pin Functionality: Pins support multiple functions including analog inputs, digital outputs, communication interfaces, and fault protection.