Home Power management Digital power ICs Digital power isolated controllers

UCD3138128

ACTIVE

Highly-Integrated Digital Controller for Isolated Power

Product details

Number of outputs 8 Frequency (max) (MHz) 2 Number of ADC channels 15 Analog comparators 7 Communication interface 1 SPI, 2 I2C, 2 PMBUS, 2 UART Compensator 2-pole/2-zero (PID hardware) DPWM resolution (ps) 250 Number of GPIOs 43 Number of digital-power peripheral feedback loops 3 Nonvolatile memory (Byte) 128k (program), 2k (data) Processor 31.25MHz, 32-bit ARM7 Operating temperature range (°C) -40 to 125 Rating Catalog
Number of outputs 8 Frequency (max) (MHz) 2 Number of ADC channels 15 Analog comparators 7 Communication interface 1 SPI, 2 I2C, 2 PMBUS, 2 UART Compensator 2-pole/2-zero (PID hardware) DPWM resolution (ps) 250 Number of GPIOs 43 Number of digital-power peripheral feedback loops 3 Nonvolatile memory (Byte) 128k (program), 2k (data) Processor 31.25MHz, 32-bit ARM7 Operating temperature range (°C) -40 to 125 Rating Catalog
TQFP (PFC) 80 196 mm² 14 x 14
  • 64 kB and 128 kB Program Flash Derivative of UCD3138 Family
    • 2-32 kB or 4-32 kB Program Flash Memory Banks
    • Supports Execution From 1 Bank, While Programming Another
    • Capability to Update Firmware Without Shutting Down the Power Supply
    • Additional Communication Ports Compared to the UCD3138 (+1 SPI, +1 I2C)
    • Boot Flash Based Dual Memory Image Support for ‘On the Fly’ Firmware Updates
  • Digital Control of up to 3 Independent Feedback Loops
    • Dedicated PID Based Hardware
    • 2-pole/2-zero Configurable, Non-Linear Control
  • Up to 16 MSPS Error A/D Converter (EADC)
    • Configurable Resolution (min: 1mV/LSB)
    • Up to 8x Oversampling and Adaptive Sample Positioning
    • Hardware Based Averaging (up to 8x)
    • 14 bit Effective Reference DAC
  • Up to 8 High Resolution Digital Pulse Width Modulated (DPWM) Outputs
    • 250 ps Pulse Width Resolution
    • 4 ns Frequency and Phase Resolution
    • Adjustable Phase Shift and Dead-bands
    • Cycle-by-Cycle Duty Cycle Matching
    • Up to 2 MHz Switching Frequency
  • Configurable Trailing/Leading/Triangular Modulation
  • RTC support
  • Configurable Feedback Control
    • Voltage, Average Current and Peak Current Mode Control
    • Constant Current, Constant Power
  • Configurable FM, Phase Shift Modulation and PWM
  • Fast, Automatic and Smooth Mode Switching
    • Frequency Modulation and PWM
    • Phase Shift Modulation and PWM
  • High Efficiency and Light Load Management
    • Burst Mode & Ideal Diode Emulation
    • Synchronous Rectifier Soft On/Off
    • Low IC Standby Power
  • Primary Side Voltage Sensing
  • Current Share (Average & Master/Slave)
  • Feature Rich Fault Protection Options
    • 7 Analog / 4 Digital Comparators,
    • Cycle-by-Cycle Current Limiting
    • Programmable Blanking Time and Fault Counting
    • External Fault Inputs
  • Synchronization of DPWM Waveforms Between Multiple UCD3138x Devices
  • 15 channel, 12 bit, 267 ksps General Purpose ADC
  • Internal Temperature Sensor
  • Fully Programmable High-Performance 31.25 MHz, 32-bit ARM7TDMI-S Processor
    • 64 kB Program Flash (2-32 kB Banks)
    • 2 kB Data Flash with ECC
    • 8 kB Data RAM
    • 4 kB Boot ROM Enables Firmware Boot-Load
  • Communication Peripherals,
    • 2 - I2C/PMBus interfaces
    • 2 - UARTs, 1 - SPI
  • Timer Capture with Selectable Input Pins
  • 80-pin QFP Package
  • Operating Temperature: –40°C to 125°C
  • 64 kB and 128 kB Program Flash Derivative of UCD3138 Family
    • 2-32 kB or 4-32 kB Program Flash Memory Banks
    • Supports Execution From 1 Bank, While Programming Another
    • Capability to Update Firmware Without Shutting Down the Power Supply
    • Additional Communication Ports Compared to the UCD3138 (+1 SPI, +1 I2C)
    • Boot Flash Based Dual Memory Image Support for ‘On the Fly’ Firmware Updates
  • Digital Control of up to 3 Independent Feedback Loops
    • Dedicated PID Based Hardware
    • 2-pole/2-zero Configurable, Non-Linear Control
  • Up to 16 MSPS Error A/D Converter (EADC)
    • Configurable Resolution (min: 1mV/LSB)
    • Up to 8x Oversampling and Adaptive Sample Positioning
    • Hardware Based Averaging (up to 8x)
    • 14 bit Effective Reference DAC
  • Up to 8 High Resolution Digital Pulse Width Modulated (DPWM) Outputs
    • 250 ps Pulse Width Resolution
    • 4 ns Frequency and Phase Resolution
    • Adjustable Phase Shift and Dead-bands
    • Cycle-by-Cycle Duty Cycle Matching
    • Up to 2 MHz Switching Frequency
  • Configurable Trailing/Leading/Triangular Modulation
  • RTC support
  • Configurable Feedback Control
    • Voltage, Average Current and Peak Current Mode Control
    • Constant Current, Constant Power
  • Configurable FM, Phase Shift Modulation and PWM
  • Fast, Automatic and Smooth Mode Switching
    • Frequency Modulation and PWM
    • Phase Shift Modulation and PWM
  • High Efficiency and Light Load Management
    • Burst Mode & Ideal Diode Emulation
    • Synchronous Rectifier Soft On/Off
    • Low IC Standby Power
  • Primary Side Voltage Sensing
  • Current Share (Average & Master/Slave)
  • Feature Rich Fault Protection Options
    • 7 Analog / 4 Digital Comparators,
    • Cycle-by-Cycle Current Limiting
    • Programmable Blanking Time and Fault Counting
    • External Fault Inputs
  • Synchronization of DPWM Waveforms Between Multiple UCD3138x Devices
  • 15 channel, 12 bit, 267 ksps General Purpose ADC
  • Internal Temperature Sensor
  • Fully Programmable High-Performance 31.25 MHz, 32-bit ARM7TDMI-S Processor
    • 64 kB Program Flash (2-32 kB Banks)
    • 2 kB Data Flash with ECC
    • 8 kB Data RAM
    • 4 kB Boot ROM Enables Firmware Boot-Load
  • Communication Peripherals,
    • 2 - I2C/PMBus interfaces
    • 2 - UARTs, 1 - SPI
  • Timer Capture with Selectable Input Pins
  • 80-pin QFP Package
  • Operating Temperature: –40°C to 125°C

The UCD3138 family is a digital power supply controller from Texas Instruments offering superior levels of integration and performance in a single chip solution. The UCD3138x, in comparison to Texas Instruments UCD3138x digital power controller offers 64 kB of program Flash memory in UCD3138A64 (128 KB in UCD3138128) and additional options for communication such as SPI and a second I2C port. The availability of program Flash memory in multiple 32 kB banks enables designers to implement dual images of firmware (e.g. one main image + one back-up image) in the device and provides the option to execute from either of the banks using appropriate algorithms. It also creates the unique opportunity for the processor to load a new program and subsequently execute that program without interrupting power delivery. This feature allows the end user to add new features to the power supply in the field while eliminating any down-time required to load the new program.

The flexible nature of the UCD3138 family makes it suitable for a wide variety of power conversion applications. In addition, multiple peripherals inside the device have been specifically optimized to enhance the performance of AC/DC and isolated DC/DC applications and reduce the solution component count in the IT and network infrastructure space. The UCD3138 family is a fully programmable solution offering customers complete control of their application, along with ample ability to differentiate their solution. At the same time, TI is committed to simplifying our customer’s development effort through offering best in class development tools, including application firmware, Code Composer StudioTM software development environment, and TI’s Fusion Power Development GUI which enables customers to configure and monitor key system parameters.

At the core of the controller are the Digital Power Peripherals (DPP). Each DPP implements a high speed digital control loop consisting of a dedicated Error Analog to Digital Converter (EADC), a PID based 2 pole - 2 zero digital compensator and DPWM outputs with 250ps pulse width resolution. The device also contains a 12-bit, 267 ksps general purpose ADC with up to 15 channels, timers, interrupt control, PMBus, I2C, SPI and UART communications ports. The device is based on a 32-bit ARM7TDMI-S RISC microcontroller that performs real-time monitoring, configures peripherals and manages communications. The ARM microcontroller executes its program out of programmable flash memory as well as on chip RAM and ROM.

In addition to the DPP, specific power management peripherals have been added to enable high efficiency across the entire operating range, high integration for increased power density, reliability, and lowest overall system cost and high flexibility with support for the widest number of control schemes and topologies. Such peripherals include: light load burst mode, synchronous rectification, LLC and phase shifted full bridge mode switching, input voltage feed forward, copper trace current sense, ideal diode emulation, constant current constant power control, synchronous rectification soft on and off, peak current mode control, flux balancing, secondary side input voltage sensing, high resolution current sharing, hardware configurable soft start with pre bias, as well as several other features. Topology support has been optimized for voltage mode and peak current mode controlled phase shifted full bridge, single and dual phase PFC, bridgeless PFC, hard switched full bridge and half bridge, active clamp forward converter, two switch forward converter and LLC half bridge and full bridge.

The UCD3138 family is a digital power supply controller from Texas Instruments offering superior levels of integration and performance in a single chip solution. The UCD3138x, in comparison to Texas Instruments UCD3138x digital power controller offers 64 kB of program Flash memory in UCD3138A64 (128 KB in UCD3138128) and additional options for communication such as SPI and a second I2C port. The availability of program Flash memory in multiple 32 kB banks enables designers to implement dual images of firmware (e.g. one main image + one back-up image) in the device and provides the option to execute from either of the banks using appropriate algorithms. It also creates the unique opportunity for the processor to load a new program and subsequently execute that program without interrupting power delivery. This feature allows the end user to add new features to the power supply in the field while eliminating any down-time required to load the new program.

The flexible nature of the UCD3138 family makes it suitable for a wide variety of power conversion applications. In addition, multiple peripherals inside the device have been specifically optimized to enhance the performance of AC/DC and isolated DC/DC applications and reduce the solution component count in the IT and network infrastructure space. The UCD3138 family is a fully programmable solution offering customers complete control of their application, along with ample ability to differentiate their solution. At the same time, TI is committed to simplifying our customer’s development effort through offering best in class development tools, including application firmware, Code Composer StudioTM software development environment, and TI’s Fusion Power Development GUI which enables customers to configure and monitor key system parameters.

At the core of the controller are the Digital Power Peripherals (DPP). Each DPP implements a high speed digital control loop consisting of a dedicated Error Analog to Digital Converter (EADC), a PID based 2 pole - 2 zero digital compensator and DPWM outputs with 250ps pulse width resolution. The device also contains a 12-bit, 267 ksps general purpose ADC with up to 15 channels, timers, interrupt control, PMBus, I2C, SPI and UART communications ports. The device is based on a 32-bit ARM7TDMI-S RISC microcontroller that performs real-time monitoring, configures peripherals and manages communications. The ARM microcontroller executes its program out of programmable flash memory as well as on chip RAM and ROM.

In addition to the DPP, specific power management peripherals have been added to enable high efficiency across the entire operating range, high integration for increased power density, reliability, and lowest overall system cost and high flexibility with support for the widest number of control schemes and topologies. Such peripherals include: light load burst mode, synchronous rectification, LLC and phase shifted full bridge mode switching, input voltage feed forward, copper trace current sense, ideal diode emulation, constant current constant power control, synchronous rectification soft on and off, peak current mode control, flux balancing, secondary side input voltage sensing, high resolution current sharing, hardware configurable soft start with pre bias, as well as several other features. Topology support has been optimized for voltage mode and peak current mode controlled phase shifted full bridge, single and dual phase PFC, bridgeless PFC, hard switched full bridge and half bridge, active clamp forward converter, two switch forward converter and LLC half bridge and full bridge.

Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 28
Type Title Date
* Data sheet UCD3138128, UCD3138A64 Highly-Integrated Digital Controller For Isolated Power datasheet (Rev. B) PDF | HTML 20 Jan 2017
Application note Introduction to UCD3138x Devices PDF | HTML 21 Dec 2023
Application note Stack Overflow Detection on UCD3138 Devices PDF | HTML 13 Sep 2023
Application note Lockup Avoidance for UCD3138 Devices PDF | HTML 03 Jul 2023
User guide UCD31xx Technical Reference Manual (Rev. D) PDF | HTML 28 May 2020
Application note Automatic Baud Rate Detection and Configuration in UCD3138 (Rev. A) 04 May 2020
Application note Fusion Digital Power Studio for UCD3138 Isolated Power Applications (Rev. C) 24 Jun 2019
EVM User's guide Using the UCD3138HSFBEVM-029 (Rev. A) 08 May 2019
Application note UCD3138 Family - Practical Design Guideline (Rev. B) 20 Nov 2018
Application note Migrating from the UCD3138 to UCD3138A (Rev. D) 08 Apr 2016
User guide UCD3138A64/UCD3138128 Programmer’s Manual (Rev. B) 04 Apr 2016
User guide Bidirection DC-to-DC Converter User's Guide (Rev. A) 27 Oct 2015
Application note UCD3138 Integral Branch of the PID Filter 04 Oct 2014
User guide UCD3138064 Programmer's Manual (Rev. B) 15 May 2014
Application note Designing a UCD3138 Controlled Bridgeless PFC 01 Apr 2014
Application note Designing a UCD3138 Controlled Interleaved PFC 01 Apr 2014
Application note Designing a UCD3138 Controlled Single Phase PFC 26 Mar 2014
Application note UCD3138 PFC Tuning 26 Mar 2014
EVM User's guide Using the UCD3138PSFBEVM-027 08 Aug 2013
Analog Design Journal 2Q 2013 Issue Analog Applications Journal 16 Apr 2013
Analog Design Journal Digital current balancing for an interleaved boost PFC 16 Apr 2013
Application note Evaluating UCD3138 in Interleave PFC or Bridgeless PFC Configurations 18 Mar 2013
EVM User's guide Using the UCD3138064EVM-166 05 Mar 2013
EVM User's guide Using the UCD3138OL40EVM-032 04 Jan 2013
EVM User's guide Using the UCD3138OL64EVM-031 28 Aug 2012
User guide Using the UCD3138CC64EVM-030 (Rev. A) 05 Jul 2012
User guide Using the UCD3138PFCEVM-026 (Rev. B) 08 Jun 2012
Application note PFC THD Reduction and Efficiency Improvement by ZVS or Valley Switching 26 Apr 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

UCD3138A64OEVM-662 — UCD3138 evaluation module for 80-pin open-loop digital power controller

The UCD3138A64OEVM-662 EVM offers an easy to use test platform for stand-alone evaluation of UCD3138A64 digital controller optimized for isolated power applications. Featuring an 80-pin socket and a comprehensive set of test points, the EVM allows hardware and firmware engineers to manipulate (...)

User guide: PDF
Not available on TI.com
Evaluation board

UCD3138HSFBEVM-029 — UCD3138 Hard Switching Full Bridge Converter Evaluation Module

The Texas Instruments UCD3138HSFBEVM-029 evaluation module (EVM) is a digitally controlled hard switching full bridge converter based on the UCD3138RHA programmable digital power controller. The EVM is a standalone Symmetrical Hard Switching Full-Bridge (HSFB) DC-DC power converter designed for (...)

User guide: PDF
Not available on TI.com
Evaluation board

UCD3138PFCEVM-026 — UCD3138 Digital Power Factor Correction Pre-regulator Evaluation Module

The Texas Instruments UCD3138PFCEVM-026 evaluation module (EVM) is a digitally controlled single phase PFC pre-regulator based on the UCD3138 programmable digital power controller. The EVM accepts universal ac line input from 90Vac to 264Vac, 47Hz to 63Hz. The nominal output voltage is 390VDC. (...)

User guide: PDF
Not available on TI.com
Evaluation board

UCD3138PSFBEVM-027 — UCD3138PSFBEVM-027 Evaluation Module

This EVM, UCD3138PSFBEVM-027 is to help evaluate the UCD3138 64-pin digital control IC in an off-line power converter application and then to aid in its design. The EVM is a standalone phase-shifted full-bridge DC-DC power converter. The EVM is used together with its control card, (...)
User guide: PDF
Not available on TI.com
Daughter card

UCD3138A64CEVM-660 — UCD3138A64 Control Card Evaluation Module

The Texas Instruments UCD3138A64CEVM-660 evaluation module (EVM) functions as a control card for UCD3138A64 digital controller for isolated power applications from Texas Instruments. The EVM can be used either as a stand-alone board to study the UCD3138A64 device or as a control card for (...)

User guide: PDF
Not available on TI.com
Debug probe

TMDSEMU110-U — XDS110 JTAG Debug Probe

The Texas Instruments XDS110 is a new class of debug probe (emulator) for TI embedded processors. The XDS110 replaces the XDS100 family while supporting a wider variety of standards (IEEE1149.1, IEEE1149.7, SWD) in a single pod. Also, all XDS debug probes support Core and System Trace in all (...)

User guide: PDF
Not available on TI.com
Debug probe

TMDSEMU560V2STM-U — XDS560™ software v2 system trace USB debug probe

The XDS560v2 is the highest performance of the XDS560™ family of debug probes and supports both the traditional JTAG standard (IEEE1149.1) and cJTAG (IEEE1149.7).  Note that it does not support serial wire debug (SWD).

All XDS debug probes support Core and System Trace in all ARM and DSP processors (...)

Not available on TI.com
Debug probe

TMDSEMU560V2STM-UE — XDS560v2 System Trace USB & Ethernet Debug Probe

The XDS560v2 is the highest performance of the XDS560™ family of debug probes and supports both the traditional JTAG standard (IEEE1149.1) and cJTAG (IEEE1149.7). Note that it does not support serial wire debug (SWD).

All XDS debug probes support Core and System Trace in all ARM and DSP processors (...)

Not available on TI.com
Application software & framework

UCD3138_FW_SDK — UCD3138 Application Development Firmware Kit

The UCD3138 firmware is a free software development kit for Texas Instruments’ UCD3138 integrated digital power controller family. It encompasses firmware development tools along with supporting collateral for the most popular power supply topologies for quicker evaluation and development of (...)
Code example or demo

UCD-TRAINING-LABS UCD Training Labs

UCD3138 integrated digital power controller training labs provides quick start learning tool for getting acquainted with digital controller. UCD3138 integrated digital controller offers advanced Power Peripherals operating autonomous from the processor. Device includes advanced Protection features, (...)
Supported products & hardware

Supported products & hardware

Products
Digital power isolated controllers
UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138128A Highly-Integrated Digital Controller For Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power
Software
Application software & framework
FUSION-DIGITAL-POWER-STUDIO Fusion Digital Power Studio
Firmware

UCD3138FW-BIDI Bi-Directional Firmware

UCD3138 non isolated bi-directional switching converter quickly gets a designer through evaluation to production in power supply designs based on a Wide Vin non isolated bi-directional topology by providing all-inclusive firmware with ZVS Transition mode support.

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Digital power isolated controllers
UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power
Software
Application software & framework
FUSION-DIGITAL-POWER-STUDIO Fusion Digital Power Studio
IDE, configuration, compiler or debugger
CCSTUDIO Code Composer Studio™ integrated development environment (IDE)
Firmware

UCD3138FW-FBLLC — Full Bridge / Phase Shift LLC Firmware

UCD3138 Phase Shift  LLC quickly gets a designer through evaluation to production in power supply designs based on a resonant LLC topology by providing firmware with ZVS operation and mode switching capability to achieve high efficiency across wider operating conditions.

The resonant LLC topology (...)

Firmware

UCD3138FW-HSFB HSFB Firmware

UCD3138 Hard Switched Full Bridge (HSFB) topology firmware gets a designer through evaluation to production in power supply designs based on high power Hard Switched Full Bridge topology by providing all-inclusive firmware with input voltage feed forward, copper trace current sensing, on the fly (...)

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Digital power isolated controllers
UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138128A Highly-Integrated Digital Controller For Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power
Hardware development
Evaluation board
UCD3138HSFBEVM-029 UCD3138 Hard Switching Full Bridge Converter Evaluation Module
Software
Application software & framework
FUSION-DIGITAL-POWER-STUDIO Fusion Digital Power Studio
Firmware

UCD3138FW-PFC PFC Firmware

UCD3138 Power Factor Correction (PFC) firmware gets a designer through evaluation to production in power supply designs based on a PFC topology by providing all-inclusive firmware that can integrate easily with your housekeeping functionality.

Supported products & hardware

Supported products & hardware

Products
Digital power isolated controllers
UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138128A Highly-Integrated Digital Controller For Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power
Hardware development
Evaluation board
UCD3138PFCEVM-026 UCD3138 Digital Power Factor Correction Pre-regulator Evaluation Module
Software
Application software & framework
FUSION_DIGITAL_POWER_DESIGNER Digital Power Software
Firmware

UCD3138FW-PSFB Phase Shifted Full Bridge Firmware

UCD3138 Phase Shift Full Bridge quickly gets a designer through evaluation to production in power supply designs based on high power PSFB topology by providing all-inclusive firmware with peak current mode control support, adaptive dead time optimization and programmable slope compensation.

Supported products & hardware

Supported products & hardware

Products
Digital power isolated controllers
UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138128A Highly-Integrated Digital Controller For Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power
Hardware development
Evaluation board
UCD3138PSFBEVM-027 UCD3138PSFBEVM-027 Evaluation Module
Software
Application software & framework
FUSION_DIGITAL_POWER_DESIGNER Digital Power Software
Firmware

UCD3138FW_LLC LLC Half bridge Firmware

UCD3138 Resonant LLC Programmer quickly gets a designer through evaluation to production in power supply designs based on a resonant LLC topology by providing  firmware with ZCS protection and mode switching capability to achieve high efficiency across wider operating conditions. The sunflower (...)

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Digital power isolated controllers
UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138128A Highly-Integrated Digital Controller For Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power
Hardware development
Evaluation board
UCD3138ALLCEVM150 UCD3138A LLC Evaluation Module
Software
Application software & framework
FUSION_DIGITAL_POWER_DESIGNER Digital Power Software
IDE, configuration, compiler or debugger

CCSTUDIO Code Composer Studio™ integrated development environment (IDE)

Code Composer Studio is an integrated development environment (IDE) for TI's microcontrollers and processors. It comprises a suite of tools used to develop and debug embedded applications.  Code Composer Studio is available for download across Windows®, Linux® and macOS® (...)

Supported products & hardware

Supported products & hardware

This design resource supports most products in these categories.

Check the product details page to verify support.

Launch Download options
IDE, configuration, compiler or debugger

FUSION_DIGITAL_POWER_API TI Fusion API

The Fusion Digital Power Studio is built on top of a Microsoft.NET Application Programming Interface (Fusion-API) that handles I2C/SMBus communication and abstracts devices and commands. It provides high level interfaces to common tasks such as command read/write, full device configuration (...)

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Digital power isolated controllers
UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138128A Highly-Integrated Digital Controller For Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power
Software
Application software & framework
FUSION_DIGITAL_POWER_DESIGNER Digital Power Software
Driver or library
FUSION_DIGITAL_POWER_API Fusion Digital Power - API
Support software

FUSION-DIGITAL-POWER-STUDIO Fusion Digital Power Studio 3.0.77

Fusion Digital PowerTM Studio incorporates software tools for Texas Instruments' UCD3138 Integrated Digital Controller family.   Fusion Digital Power helps power supply engineers to gain benefits of digital power without learning complex programming skills. Fusion Digital Power is an intuitive (...)

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Digital power isolated controllers
UCD3020 Fully Programmable Digital Power Controller with up to Two Regulated Outputs and Six DPWM Outputs UCD3028 Fully Programmable Digital Power Controller with up to Two Regulated Outputs and Eight DPWM Outputs UCD3040 Fully Programmable Digital Power Controller with Four Feedback Loops and Eight DPWM Outputs UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138128A Highly-Integrated Digital Controller For Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power
Support software

FUSION-PRODUCTION-GUI Fusion Digital Power Production Tool

The Fusion Digital Power Production Tool (production GUI) is a graphical user interface used to download firmware, upgrade firmware, configure, calibrate and test.  This command-based interface allows the seamless integration of UCD flashing procedures in a production environment.

The production GUI (...)
lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Digital power isolated controllers
UCD3020 Fully Programmable Digital Power Controller with up to Two Regulated Outputs and Six DPWM Outputs UCD3028 Fully Programmable Digital Power Controller with up to Two Regulated Outputs and Eight DPWM Outputs UCD3040 Fully Programmable Digital Power Controller with Four Feedback Loops and Eight DPWM Outputs UCD3138 Highly Integrated Digital Controller for Isolated Power with 3 Feedback Loops and 8 DPWM Outputs UCD3138064 Highly-Integrated Digital Controller for Isolated Power with 64kB Memory UCD3138064A Highly Integrated Digital Controller for Isolated Power UCD3138128 Highly-Integrated Digital Controller for Isolated Power UCD3138128A Highly-Integrated Digital Controller For Isolated Power UCD3138A UCD3138A Highly Integrated Digital Controller for Isolated Power UCD3138A64 Highly-Integrated Digital Controller for Isolated Power
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Reference designs

TIDA-00653 — Non-Isolated Bi-Directional Converter Reference Design for Battery Charging Applications

TIDA-00653 is a non-isolated 48 to 12-V bi-directional converter reference design for 48V battery applications enabled by the UCD3138 digital power controller. The design has the flexibility to work in either a ZVS transition-mode topology to optimize light-load efficiency, or a hard-switching (...)
Design guide: PDF
Schematic: PDF
Reference designs

TIDA-00412 — 360W Digital Controlled Phase Shift Full Bridge Converter Reference Design

DC-DC power converter with digital control using UCD3138CC64EVM-030 daughter-card. The daughter-card  with preloaded firmware providing the required control functions for a Phase Shift Full Bridge converter.  The TIDA-00412 (UCD3138PSFBEVM-027) accepts a DC input from 370 to 400 VDC, and (...)
Schematic: PDF
Reference designs

TIDA-00381 — 360W Phase Shift Full Bridge Resonant LLC with High Side Low Side Driver Reference Design

The power supply employs Full Bridge Resonant LLC with phase shift operating at ramp up, light load, low output voltage. This operating mode can replace PWM operating mode in LLC, which can improve efficiency signficantly in light load.
Test report: PDF
Schematic: PDF
Reference designs

PMP4320A — 600W Half Brick DC/DC Converter with Digital Control for Telecom Applications Reference Design

The PMP4320A reference design is a single output DC-DC converter with standard half-brick dimensions and full digital control configuration based on the UCD3138.  It is capable of delivering 50A output current with an output voltage of 12V.  The converter provides high efficiency and good (...)
Test report: PDF
Schematic: PDF
Reference designs

PMP8877 — 1/8 Brick Isolated DC/DC Telecom Power Module Digital Control Reference Design

PMP8877 is a full-function 1/8th brick isolated DC/DC telecom power module based on the UCD3138 digital power controller. The reference design features secondary side control and hard switching full bridge power topology to deliver 12V/180W of output power operating across a wide range 36V-72V (...)
Test report: PDF
Schematic: PDF
Package Pins Download
TQFP (PFC) 80 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos