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UCC28065 ACTIVE Natural Interleaving™ transition-mode PFC controller with high-frequency switching Please see SLUAA28 on the differences between the UCC28064A andd UCC28065 - https://www.ti.com/lit/pdf/sluaa28

Product details

Topology Boost Control mode TM Practical operating frequency (Max) (MHz) 0.5 UVLO thresholds on/off (V) 10.35 / 9.6 Device type Controllers Operating supply current (mA) 5 Features < 150W Applications, > 750W Applications, Burst mode , Feed-forward Correction, Interleaved, Low Power, Soft Start, Interleaved Rating Catalog Operating temperature range (C) -40 to 125
Topology Boost Control mode TM Practical operating frequency (Max) (MHz) 0.5 UVLO thresholds on/off (V) 10.35 / 9.6 Device type Controllers Operating supply current (mA) 5 Features < 150W Applications, > 750W Applications, Burst mode , Feed-forward Correction, Interleaved, Low Power, Soft Start, Interleaved Rating Catalog Operating temperature range (C) -40 to 125
SOIC (D) 16 59 mm² 9.9 x 6
  • Input filter and output capacitor ripple-current reduction
    • Reduced current ripple for higher system reliability and smaller bulk capacitor
    • Reduced EMI filter size
  • High light-load efficiency
    • User adjustable phase management with input voltage compensation
    • Burst mode operation with adjustable burst threshold
    • Helps enable compliance to EUP Lot6 Tier II, CoC Tier II and DOE Level VI standards
  • Sensorless current-shaping simplifies board layout and improves efficiency
  • Input line feed-forward for fast line transient response
  • Inrush-safe current limiting:
    • Prevents MOSFET conduction during inrush
    • Eliminates CCM operation and reverse recovery events in output rectifier
  • Operating temperature range –40°C to +125°C in a 16-pin SOIC package
  • Create a Custom Design Using the UCC28064A With the WEBENCH® Power Designer
  • Input filter and output capacitor ripple-current reduction
    • Reduced current ripple for higher system reliability and smaller bulk capacitor
    • Reduced EMI filter size
  • High light-load efficiency
    • User adjustable phase management with input voltage compensation
    • Burst mode operation with adjustable burst threshold
    • Helps enable compliance to EUP Lot6 Tier II, CoC Tier II and DOE Level VI standards
  • Sensorless current-shaping simplifies board layout and improves efficiency
  • Input line feed-forward for fast line transient response
  • Inrush-safe current limiting:
    • Prevents MOSFET conduction during inrush
    • Eliminates CCM operation and reverse recovery events in output rectifier
  • Operating temperature range –40°C to +125°C in a 16-pin SOIC package
  • Create a Custom Design Using the UCC28064A With the WEBENCH® Power Designer

The UCC28064A interleaved PFC controller has higher power ratings than previously possible. The device uses a Natural Interleaving™ technique. Both channels operate as masters (there is no slave channel) synchronized to the same frequency. This approach enables faster response time, excellent phase-to-phase on-time matching, and transition mode operation for each channel. The device has a burst mode function to get high light-load efficiency. Burst mode eliminates the need to turn off the PFC during light load operation to meet standby power targets. Burst mode eliminates the need for an auxiliary flyback converter when paired with UCC25630x LLC controller and the UCC24624 synchronous rectifier controller.

Expanded system level protections features include input brownout and dropout recovery, output over-voltage, open-loop, overload, soft-start, phase-fail detection, and thermal shutdown. The additional fail-safe over-voltage protection (OVP) feature protects against shorts to an intermediate voltage that, if undetected, could lead to catastrophic device failure. Advanced non-linear gain results in rapid, yet smooth response to line and load transient events. Special line-dropout handling avoids significant current disruption. Strong reduction of bias current when not switching during burst mode operation, improves stand-by performance.

The UCC28064A interleaved PFC controller has higher power ratings than previously possible. The device uses a Natural Interleaving™ technique. Both channels operate as masters (there is no slave channel) synchronized to the same frequency. This approach enables faster response time, excellent phase-to-phase on-time matching, and transition mode operation for each channel. The device has a burst mode function to get high light-load efficiency. Burst mode eliminates the need to turn off the PFC during light load operation to meet standby power targets. Burst mode eliminates the need for an auxiliary flyback converter when paired with UCC25630x LLC controller and the UCC24624 synchronous rectifier controller.

Expanded system level protections features include input brownout and dropout recovery, output over-voltage, open-loop, overload, soft-start, phase-fail detection, and thermal shutdown. The additional fail-safe over-voltage protection (OVP) feature protects against shorts to an intermediate voltage that, if undetected, could lead to catastrophic device failure. Advanced non-linear gain results in rapid, yet smooth response to line and load transient events. Special line-dropout handling avoids significant current disruption. Strong reduction of bias current when not switching during burst mode operation, improves stand-by performance.

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Technical documentation

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Type Title Date
* Data sheet UCC28064A Natural Interleaving™ Transition-Mode PFC Controller with High Light-Load Efficiency datasheet (Rev. B) 03 Oct 2019
Application note Connecting Two UCC28064A Interleaved PFC Power Stages in Parallel 02 Sep 2021
Application note Convert UCC28064A EVM to Higher Switching Frequency Using UCC28065 04 Jun 2020
Application note UCC2806x PCB Layout Guideline for PFC 29 Apr 2019
Technical article How topology selection can help improve reliability in industrial AC/DC power supplies 14 Feb 2019
Application note Addressing the Need for the Next-Generation Interleaved Transition Mode PFC (Rev. A) 11 Oct 2018
Application note Optimizing PFC Standby Power Using the UCC28064A (Rev. A) 10 Oct 2018
EVM User's guide UCC28064EVM-004 User's Guide (Rev. A) 22 Jun 2018

Design & development

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

Evaluation board

UCC28064EVM-004 — 300W interleaved PFC pre-regulator evaluation module

The pre-regulator uses the UCC28064 transition mode interleaved pfc controller to shape the input current wave to provide power factor correction. This device provides interleaved dual phase operation at high power levels, single phase operation at lower power levels and burst mode operation at (...)
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Simulation model

UCC28064A SIMPLIS Transient Model

SLUM658.ZIP (290 KB) - SIMPLIS Model
Calculation tool

UCC28064A Excel Design calculator (Rev. C)

SLUC645C.ZIP (88 KB)
Reference designs

PMP30763 — 93% Efficiency, 400-W AC/DC reference design for avionics

This is a compact, 30-V DC, 400-W reference design for avionics applications, accepting main frequencies between 400 Hz and 800 Hz. This design consists of a front-end, two-phase interleaved transition mode (TM) power factor correction (PFC) based on UCC28064A. This minimizes the PFC inductor size (...)
Reference designs

TIDA-010015 — 94.5% Efficiency, 500W industrial AC-DC reference design

This reference design is a compact, high efficiency, 24-V DC, 500-W reference design for industrial AC/DC power supplies. This design consists of a front-end, two-phase interleaved transition mode (TM) power factor correction (PFC) based on the UCC28064A. This minimizes the PFC inductor size and (...)
Reference designs

PMP21366 — 700-W interleaving transition-mode PFC reference design

This reference design uses a UCC28064A, Natural Interleaving(TM) transition-mode power factor correction (PFC) controller to provide a universal AC input to 380-V/700-W conversion. This design achieves 98% peak efficiency at the 230 VAC input and the light-load efficiency is maintained at a level (...)
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SOIC (D) 16 View options

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