480W, <17 mm, Thin Profile, 94% Efficiency, Fast Transient Response AC/DC SMPS Reference Design

(ACTIVE) TIDA-01495

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Key Document

Description

The TIDA-01495 is a low profile (17 mm height), 94.1% peak efficiency, high power density, universal input, 24-V DC, 480-W output, consumer AC/DC power supply reference design. The circuit consists of a front-end two phase interleaved transition mode (TM) power factor correction (PFC) based on the UCC28063A, which minimizes the PFC inductor dimensions and reduces the EMI filter requirements. The HB-LLC isolated DC/DC stage is controlled by the UCC256301 hybrid hysteritic control LLC controller, which ensures fast transient response resulting in reduced PFC bulk and output capacitor dimension. Phase shedding in the PFC stage and the advance burst mode optimization feature in the LLC stage help in meeting high efficiency at 5% load (230V AC). The UCC24612 multi-mode synchronous rectifier controller realizes proportional gate drive, reducing the conduction losses in the output rectifier of the LLC stage, enabling high efficiency.

Features
  • Thin profile < 17mm height for use in space constrained applications with PCB form factor of 185 x 110 mm
  • Full load efficiency of >93.3% (230V AC) and >91.1% (115V AC) with peak efficiency of 94.1% (230V AC) and 92% (115V AC) meets the 80+ Platinum standard
  • Phase shedding feature in the PFC stage and advanced burst mode feature in the LLC stage enables high efficiency at light load conditions >84% (230V AC) and >82% (115V AC) at 5% load
  • ZCS avoidance feature and OVP sensing feature in the LLC controller improves robustness, system protected for over current, short-circuit, and over voltage, ensuring safety
  • High power factor > 0.99 and meets PFC regulations & current THD as per IEC 61000-3-2 Class A
  • Designed to meet EN55011 Class B conducted emissions standard

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Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD19501KCS  80V, N-Channel NexFET™ Power MOSFET, CSD19501KCS  MOSFETs  Sample & Buy Not Available
TL431  Adjustable precision shunt regulator  Voltage references  Sample & Buy Not Available
UCC24612  High-Frequency Multi-Mode Synchronous Rectifier Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC256301  Wide Vin LLC Resonant Controller With High-Voltage Start Up Enabling Ultra-Low Standby Power  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC27524  Dual, 5A, High-Speed Low-Side Power MOSFET Driver  Gate drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC28063A  Natural Interleaving Transition-Mode PFC Controller with Improved Audible Noise Immunity  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC28880  High Voltage Switcher for Non-isolated AC/DC Conversion  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD19501KCS Download
TL431 Download Download
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UCC24612 Download Download
UCC256301 Download Download
UCC27524 Download Download
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UCC28063A Download
UCC28880 Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1470 01 Feb 2018 0
Design files (6)
Title Abstract Type Size (KB) Date Views
PDF 535 08 Aug 2018 0
PDF 1524 08 Aug 2018 0
ZIP 868 08 Aug 2018 0
ZIP 3819 08 Aug 2018 0
PDF 168 08 Aug 2018 0
PDF 361 08 Aug 2018 0

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