Digital power
Implement power supplies across a wide range of topologies while exceeding performance standards and delivering highest efficiency and power density
Flexibility, efficiency and integration for your dynamic system needs
Our easy-to-use digital-power controllers help optimize your power design's performance and cost. Our unique architecture and powerful GUI offer best-in-class loop latency, higher power density, improved accuracy and efficiency. Modern power supplies require advanced control methods and complex topologies like multi-phase or totem-pole power factor correction (PFC), bidirectional or inverting DC/DCs, current mode resonant inductor-inductor-capacitor and synchronous rectification. Our devices require fewer development resources and less time to pass your power-supply specifications.
Select by type
Digital-power controllers
We've optimized our digital-power controllers for existing and new industrial and enterprise markets, including telecommunications and server power, offboard chargers and solar power.
SR MOSFET gate drivers
Synchronous rectifier (SR) MOSFETs are high-speed gate drivers featuring high-drive capability and body-conduction sensing to improve system performance when used with digital-power controllers.
Why choose our digital power controllers?
Comprehensive analog integration
Achieve faster operating frequencies and smaller components with dedicated power peripherals, feedback and high-resolution PWM control to achieve faster control loops and greater power density
Flexible power topologies
Get precise waveform control regardless of topology with high-resolution phase, period and duty-cycle controls. Our controllers are easily programmable for PFC, AC/DC and isolated DC/DC power supplies
Ease of use
Accelerate your development with our Fusion Digital Power™ GUI and fusion express API, and leverage Code Composer Studio™ software for proprietary code development, code debugging and flashing
Power trends
High efficiency digital-power controller
Our digital-power controllers provide dedicated hardware peripherals with simpler firmware development to maximize power density and efficiency with flexbility to implement many power topologies. Developed and optimized for power-supply applications, our digital-power controllers do not limit bandwidth, latency or transient response which saves MIPS for housekeeping or multi-tasking. Dual memeory bank architecture makes firmware updates seamless with zero downtime. Control schemes can be non-linear, zero-voltage switching (reasonant or PWM), with analog modules providing dead-time compensation for higher average efficiency plus robust fault protections.
Using UCD7138 and UCD3138A for Advanced Synchronous Rectification Control (Rev. B)
PFC THD Reduction and Efficiency Improvement by ZVS or Valley Switching
Featured products for power density
Low EMI digital-power controllers
With our digital-power controllers, you can implement power supplies that leverage zero-voltage switching, frequency dithering and reactive current compensation with EMI performance passing ciritcal standards with sufficient margin. Our digital-power controllers are also less susceptible to noise, interference and interaction.
Increase power factor by digitally compensating PFC EMI-capacitor reactive curre
UCD3138 Family - Practical Design Guideline (Rev. B)
Featured products for Low EMI
Technical resources
Using the UCD3138PFCEVM-026 (Rev. B)
Introduction to digital power controllers
Fusion Digital Power Studio for UCD3138 Isolated Power Applications (Rev. C)
Discover featured applications
Optimize power solutions for telecommunication rectifiers and server power applications with flexible digital power solutions
Our digital power isolated controllers help you lower operating costs, increase efficiency and reliability, and reduce development time while improving system integration and providing advanced features and protection.
Benefits:
- 31.25 MHz, 32-bit ARM7 and 16-MHz error analog-to-digital converter (EADC) with 8x sampling for complex control algorithms and system level functions.
- 12-bit 1-MSPS ADC and 10-bit effective DAC for precision signal generation and measurement.
- Adaptive dead-time control, live firmware updates and several communication interface such as UART, SPI, PMBus and I2C.
Featured resources
- TIDA-00707 – 1kW, Compact, 97.5% Efficiency, Digital PFC Reference Design for Telecom and Server PSU with E-Meter
- TIDA-00705 – 480-W, 97% η efficiency, Ultra-Compact (480W/in3), Bi-Directional DC-DC Reference Design
- UCD3138A – UCD3138A Highly Integrated Digital Controller for Isolated Power
- Designing a digital power supply: How to write firmware – Technical article
- Advancing Power Supply Solutions Through the Promise of GaN – White paper
- CCSTUDIO – Code Composer Studio™ integrated development environment (IDE)
- FUSION-DIGITAL-POWER-STUDIO – Fusion Digital Power Studio
Accelerate your development to sustainable environments with our digital control solutions
Digital controllers provide precision control of power delivery to help you achieve increased loop bandwidth and power density. The Arm® Cortex® processor in our controllers enables advanced features such as maximum power point tracking and power factor correction (PFC), and the integrated protection features ensure system safety and reliability.
Benefits:
- Solutions to various PFC configurations and topologies to improve system power quality.
- Support for multiple communication interfaces, including UART, SPI and I2C.
- Ability to simplify power design applications with the Fusion Digital Power™ GUI.
Featured resources
- UCD3138A – UCD3138A Highly Integrated Digital Controller for Isolated Power
- UCD3138PFCEVM-026 – UCD3138 Digital Power Factor Correction Pre-regulator Evaluation Module
- UCD3138PSFBEVM-027 – UCD3138PSFBEVM-027 Evaluation Module
- UCD3138 Family - Practical Design Guideline (Rev. B) – Application note
- Introduction to digital power controllers – Video series
- CCSTUDIO – Code Composer Studio™ integrated development environment (IDE)
- FUSION-DIGITAL-POWER-STUDIO – Fusion Digital Power Studio
Drive acceleration to vehicle electrification with our digital control solutions, optimized for various power topologies
Our digital power isolated controllers help you create smarter and safer electric vehicle charging solutions for e-bike applications. Our controllers improve output power control and accuracy; facilitate higher power densities to support faster, dynamic responses; and offer efficient power factor correction and DC/DC conversion based on charging requirements.
Benefits:
- Reference designs for various power levels.
- Dedicated power design tools such as the Fusion Digital Power™ GUI, along with Code Composer Studio™ software.
- Application and software development kits to help speed up design cycles.
Featured resources
- UCD3138A64 – Highly-Integrated Digital Controller for Isolated Power
- UCD3138128A – Highly-Integrated Digital Controller For Isolated Power
- UCD3138PFCEVM-026 – UCD3138 Digital Power Factor Correction Pre-regulator Evaluation Module
- UCD3138PSFBEVM-027 – UCD3138PSFBEVM-027 Evaluation Module
- Designing a digital power supply: How to write firmware – Technical article
- Introduction to digital power controllers – Video series
- CCSTUDIO – Code Composer Studio™ integrated development environment (IDE)
Design & development resources
UCD3138 evaluation module for 40-pin open-loop digital power controller
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. (...)
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 (...)