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Part No.	UCD3138RHAR
Manufacturer	TI1
Size	1Mb
Pages	78 pages
Description	Highly Integrated Digital Controller for Isolated Power

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# UCD3138 Digital Controller for Isolated Power

## Overview
The UCD3138 is a highly integrated digital controller for isolated power applications. It offers flexible control, high integration, and best-in-class development tools.

## Key Features
️· Digital Control: Utilizes Digital Power Peripherals (DPP) for precise control.
️· Memory: 32KB Program Flash, 2KB Data Flash, 4KB Data RAM.
️· Communication: PMBus, UART (2 on RGC, 1 on RHA/RMH).
️· Peripherals: EADC, DPWM, Timers, Fault Protection.
️· Power Supply Support: Suitable for AC/DC and isolated DC/DC power supplies.

## Electrical Specifications
️· Operating Temperature: -40°C to 125°C.
️· Supply Voltage: V33DIO (Digital I/O).

## Functional Overview
️· ARM Processor: 32-bit ARM7TDMI-S RISC microcontroller.
️· DPWM: 8 channels with 250ps resolution.
️· ADC: 12-bit with up to 14 channels.

️· Timers: Include 24-bit PWM and 16-bit PWM timers.

## Packages
️· UCD3138RGC: 64-pin QFN.
️· UCD3138RHA/RMH: 40-pin QFN.

## Pin Assignments (Examples)
️· AGND: Analog Ground.
️· AD13: 12-bit ADC Channel 13.
️· PMBUS_CLK: PMBus Clock.
️· SCI_RX0: UART Receive.
️· DPWM0A: Digital PWM Output A.