IC manufacturers Texas Instruments

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Texas Instruments UCC28180D | Demoboard TIDA-010028

330-W, 95.5% Efficiency and 18-W/in3 Density, Bridgeless PFC+LLC Reference Design

Overview

TopologyPower Factor Correction
Input voltage85-265 V
Output 119.5 V / 17 A
IC revisionE1

Description

This reference design is a compact, high efficiency, bridgeless 330-W, 19.5-V output AC/DC reference design. This design consists of a front-end, bidirectional bridgeless boost power factor correction (PFC) based on the UCC28180A device, achieving end-to-end peak efficiency of > 94% at 90 V AC input and > 95.5% at 230 V AC input. The DC/DC is implemented using the HB-LLC stage implemented using our UCC256301 device. The design uses UCC24624 for synchronous rectification at the secondary side to improve efficiency.

Features

  • Full load efficiency at 230 V AC > 95.5% and >94% at 90 V AC
  • High power factor > 0.99, meeting PFC regulations and current THD as per IEC 61000-3- 2 Class A
  • < 0.25-W standby power with burst mode in both PFC and LLC stages
  • ZCS avoidance feature and OVP sensing feature in LLC controller improves robustness and protects systems from overcurrent, short circuit, and overvoltage to ensure safety
  • Small 152 mm × 75 mm × 25 mm PCB form factor

Typical applications

  • Consumer AC / DC / DIN Rail Power Supply / Industiral AC / DC / PC Power Supply

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. CSizeOperating TemperatureDF
(%)
Ceramic TypeFl
(mm)
IR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples
890334025039CSSPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTXX Film Capacitors Across the mains470 nF X2 220 0.121.28 GΩ -40 °C up to +105 °C 15 Carton ±10% Pitch 15 mm -40 °C up to +105 °C 310 18 8 14 Boxed THT
7448031501SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-CMBNC Common Mode Power Line Choke Nanocrystalline M -55 °C up to +125 °C 15 1 3.2 300 2100 Nanocrystalline 24 17 25 THT
885012207025SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 10 V(DC)4.7 µF0.02 GΩ 7" Tape & Reel ±10% 0805 -55 °C up to +125 °C 10 X7R Class II 0.5 10 2 1.25 1.25
Order Code Data­sheet Simu­lation
890334025039CSSPEC
7448031501SPEC
885012207025SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. CSizeOperating TemperatureDF
(%)
Ceramic TypeFl
(mm)
IR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples