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UCC256303 LLC Resonant Controller
Texas Instruments' UCC256303 is a fully featured LLC controller with integrated high-voltage gate driver. It has been designed to pair with a PFC stage to provide a complete power system using a minimum of external components. The resulting power system is designed to meet the most stringent requirements for standby power without the need for a separate standby power converter, and with PFC stage running all the time.

UCC256303 includes a range of features designed to make LLC converter operation well controlled and robust. This device aims to unburden the LLC designer and allow mainstream applications to benefit from efficiency advantages of the LLC topology.

UCC256303 uses hybrid hysteretic control to provide best in class line and load transient response. The control effort is approximately linearly proportional to average input current in one cycle. The control makes the open loop transfer function a first order system so that it is very easy to compensate. The system is always stable with proper frequency compensation.

UCC256303 provides a high efficient burst mode with consistent burst power level during each burst on cycle. The burst power level is programmable and adaptively changes with input voltage, making the optimization of efficiency very easy.

Features
  • Hybrid hysteretic control (HHC)
    • Best-in-class transient response
    • Easy compensation design
  • Optimized low power features enable 75 mW
  • Standby power design with PFC on
    • Advanced burst mode opto-coupler low power operation
    • Helps enable compliance to CoC Tier II standard
  • Fast exit from burst mode
  • Improved capacitive region avoidance scheme
  • Adaptive dead-time
  • Internal high-side gate drivers (0.6 A and 1.2 A capability)
  • Robust soft start with no hard switching
  • Overtemperature, output overvoltage, input over- and undervoltage protection with three levels of over current protections
  • Wide operating frequency range (35 kHz to 1 MHz)
  • LLC resonant controller in SOIC16 with high voltage clearance
  • External bias required
  • Create a custom design using the UCC256303 with the WEBENCH® Power Designer
Applications
  • Digital TV SMPS
  • AC-DC adapters
  • Gaming
  • Desktop PCs

UCC256303 LLC Resonant Controller


Image Manufacturer Part Number Description   View Details
UCC25630-3DDBT datasheet link HALF BRIDGE CONT WITH HV DRIVER UCC25630-3DDBT HALF BRIDGE CONT WITH HV DRIVER   UCC25630-3DDBT product page link
2018010205 / 08.01.2018 / Electronic-components / Digi-Key Electronics /

DigiKey Launches Season 3 of its "Farm Different" Video Series
DigiKey has launched season 3 of its "Farm Different" video series, sponsored by Analog Devices, Inc. (ADI) and Amphenol Industrial.

DigiKey Adds Over 450 New Suppliers and 1.7 Million New Parts in 2023
DigiKey, a leading global commerce distributor offering the largest selection of technical components and automation products in stock for immediate shipment, announced today that it expanded its portfolio in 2023 by adding more than 450 new suppliers across their core business, DigiKey Marketplace and Fulfilled by DigiKey program. The company added more than 1.7 million new accessible parts, including 230,000+ parts with inventory available to sell, across its core business in 2023.

DigiKey Stocks New eFuse Reference Design Product from Vishay
DigiKey, a leading global commerce distributor offering the largest selection of technical components and automation products in stock for immediate shipment, announced today that the EFUSE-48V100A reference design product from Vishay, a global technology leader in discrete semiconductors and passive components, is now available for purchase globally from DigiKey.

DigiKey’s 15th Annual DigiWish Giveaway Kicks Off on Dec. 1, 2023
DigiKey, a leading global commerce distributor offering the largest selection of technical components and automation products in stock for immediate shipment is excited to launch its 15th annual DigiWish Giveaway on Dec. 1, 2023. As the holiday season approaches, DigiKey is selecting 24 lucky winners to start the celebrations early, as part of the company’s continued mission to help engineers, designers and makers accelerate progress.

DigiKey to Showcase Automation Offerings at SPS Debut
The Smart Production Solutions (SPS) trade show is the largest automation show in Europe

DigiKey Adds 300 New Suppliers in First Half of 2023
Notable suppliers include Alps Alpine, Ambiq Micro, Amphenol LTW, HELUKABEL and Zettler Magnetics

DigiKey Receives Distribution Excellence Award 2023 High Service Level from Sensirion

DigiKey Adds 175,000+ New SKUs Year-to-Date in 2023

DigiKey Unveils Updated Logo and Brand
Brand refresh reflects company’s evolution and commerce leadership position

Digi-Key Launches Supply Chain Transformed Season 2 Video Series
Second season explores building flexible, agile and resilient supply chains

Digi-Key Launches Global Capability Centre in Bengaluru
Digi-Key Electronics, which offers the world’s largest selection of electronic components and automation products in stock for immediate shipment, has launched its first Global Capability Centre (GCC). The 30,000 sq. ft. facility in Bhartiya City, Bengaluru, India, was recently inaugurated with the presence of several key leaders from Digi-Key and its support partner, SMC Squared (SMC2).

Digi-Key Announces Global Distribution Agreement with SPARK Microsystems
Digi-Key Electronics, which offers the world’s largest selection of electronic components in stock for immediate shipment, announced that it has secured a global distribution agreement with SPARK Microsystems to offer ultra-low power wireless communications for high-performance personal area networks and IoT-connected devices.

Company of the week

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New video for Pilot VX


electronica 2024, 12.11.-15.11.2024, Munich, DE


Video Report from AMPER 2022


INDUSTRIAL PRESSURE TRANSDUCERS FROM CYNERGY3


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Yamaichi Electronics USA Inc.



Calendary
SENSOR+TEST 2024, 11.-13.6.2024, Nuremberg, DE
electronica 2024, 12.11.-15.11.2024, Munich, DE
DistribuTECH, 11.2.-13.2.2025, Dallas, TX

Interesting video
The ISS Design Challenge ...

Interesting video
Mouser Electronics Warehouse Tour with Grant Imahara


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