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UCC256403 - LLC Resonant Controller

Download the UCC256403 datasheet PDF. This datasheet also covers the UCC256402 variant, as both devices belong to the same llc resonant controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The UCC25640x is a fully featured LLC controller with integrated high-voltage gate driver.

It has been designed to pair with a PFC controller to provide a complete power system using a minimum of external components.

Key Features

  • 1 Optimized low power mode and burst mode algorithm.
  • Burst mode with Soft-ON and Soft-OFF periods.
  • Minimized audible noise at no load and standby.
  • User option to disable burst mode.
  • Opto-coupler low power operation.
  • Efficiency performance exceeds DoE Level VI and EU CoC Tier-2 External Power Supply Standards.
  • Hybrid hysteretic control (HHC).
  • Best-in-class transient response.
  • Fast exit from burst mode.
  • Robus.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (UCC256402-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
UCC256402 LLC Resonant Controller
UCC256404 LLC Resonant Controller
UCC25600 8-Pin High-Performance Resonant Mode Controller
UCC256301 LLC Resonant Controller Enabling Ultra-Low Standby Power
UCC256302 LLC Resonant Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Product Folder Order Now Technical Documents Tools & Software Support & Community UCC256402, UCC256403, UCC256404 SLUSD90C – JUNE 2019 – REVISED MARCH 2020 UCC25640x LLC Resonant Controller with Ultra-Low Audible Noise and Standby Power 1 Features •1 Optimized low power mode and burst mode algorithm – Burst mode with Soft-ON and Soft-OFF periods – Minimized audible noise at no load and standby – User option to disable burst mode – Opto-coupler low power operation – Efficiency performance exceeds DoE Level VI and EU CoC Tier-2 External Power Supply Standards • Hybrid hysteretic control (HHC) – Best-in-class transient response – Fast exit from burst mode • Robust adaptive dead-time control • Integrated high-voltage gate driver with 0.6 A source and 1.