IC manufacturers Texas Instruments

IC manufacturers (103)

Texas Instruments UCC27517ADBVR | Demoboard TIDA-010015

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

Overview

TopologyFlyback Converter
Input voltage85-265 V
Switching frequency1000 kHz
Output 124 V / 21 A
IC revisionE1

Description

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 reduces EMI filter requirements. The DC-DC is implemented using the HB-LLC stage implemented using TI's UCC256301 device. For efficiency improvement, synchronous rectification is used at secondary which uses the UCC24612.

Features

  • Overall efficiency of 94.5% at full load with peak efficiency > 95%
  • Up to 330-W operation without forced cooling
  • High power factor > 0.99 and meets PFC regulations and current THD as per IEC 61000-3- 2 Class A
  • Meets requirements of conducted emissions standard (EN55011 Class B)
  • 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 160 mm × 80 mm × 35 mm PCB form factor

Typical applications

  • DIN rail power supply
  • Consumer AC/DC
  • Industrial AC/DC
  • Battery charger

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CSizeOperating TemperatureQ
(%)
RISOCeramic TypeFl
(mm)
IR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
MountPins
(pcs)
RowsG
(mm)
GenderTypePackaging Samples
885012006023SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC)100 pF ±5% 0603 -55 °C up to +125 °C 100010 GΩ NP0 Class I 0.4 16 1.6 0.8 0.8 7" Tape & Reel
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 4 5
7447076SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-FI Leaded Toroidal Line Choke -40 °C up to +105 °C 6.1 0.15 45 27.5 13.6 THT 15
61300111121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header -40 °C up to +105 °C1000 MΩ 3 2.54 THT 1 Single Pin Header Straight Bag
Order Code Data­sheet Simu­lation
885012006023SPEC
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.

7447076SPEC
61300111121SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CSizeOperating TemperatureQ
(%)
RISOCeramic TypeFl
(mm)
IR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
MountPins
(pcs)
RowsG
(mm)
GenderTypePackaging Samples