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
(%)
RISOPitch
(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
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTXX Film Capacitors Across the mains470 nF X2 220 0.121.28 GΩ 15 Carton ±10% Pitch 15 mm -40 °C up to +105 °C 310 18 8 14 Boxed THT
7448031501SPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

11 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
9 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

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

885012207025SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOPitch
(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