IC manufacturers Texas Instruments

IC manufacturers (99)

Texas Instruments UCC256403/UCC28180 | Demoboard TIDA-010080

500-W, >94.5% efficiency analog control AC/DC reference design for 5G telecom rectifier

Overview

TopologyLLC Resonant Converter
Input voltage90-265 V
Output 152 V / 10.5 A
IC revisionE1

Description

This compact, high efficiency reference design with a 48-V DC, 500-W output targets 5G telecom power and industrial AC/DC power supplies. The circuit consists of a front-end continuous conduction mode (CCM) power factor correction (PFC) circuit based on the UCC28180, followed by a robust LLC stage for an isolated DC/DC converter based on the UCC256403. For high efficiency needs, the UCC24624 handles synchronous rectification. This design uses an auxiliary power supply flyback with the UCC28911, which has an internal high-voltage MOSFET. This design enables 94.5% peak efficiency and allows the system to work without forced cooling. The whole system has low iTHD, with 30% load at <12%, 50% load at <8%, 100% load at <5.5% and good load transient performance.

Features

  • Peak efficiency of 94.5% at 230-V AC and 94% across 30%~100% load
  • CCM PFC and half-bridge LLC based (UCC28180 and UCC256403)
  • Low iTHD: 30% load at <12%, 50% load at <8%, 100% load at <5.5%
  • Good load transient performance at less than 1% regulation
  • Meets ±1% accuracy for input power meter across whole load range
  • Passive cooling with sealed metal case

Typical applications

  • Merchant battery charger
  • Industrial AC-DC
  • Merchant telecom rectifiers

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCVR
(V (AC))
Safety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
L
(mm)
W
(mm)
H
(mm)
PackagingEndurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Ø D
(mm)
Samples
890324024005SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTX2 Film Capacitors Across the mains470 nF 275 X2 280 0.121.28 GΩ -40 °C up to +105 °C 12.5 15 10 16 Bulk
861011486022SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-AIG8 Aluminum Electrolytic Capacitors330 µF 450 -25 °C up to +85 °C 10 37 Tray 2000 2290 2970 20 35
750344399SPEC
Active i| Production is active. Expected lifetime: >10 years. Flyback Transformer 17.5 20 14
750344650SPEC
Active i| Production is active. Expected lifetime: >10 years. Power Inductor 24 24 24.64
750344651SPEC
Active i| Production is active. Expected lifetime: >10 years. Power Inductor 36.2 40.64 38.1
750344508SPEC
Active i| Production is active. Expected lifetime: >10 years. Power Transformer 35.56 37.34 34.29
Order Code Data­sheet Simu­lation
890324024005SPEC
861011486022SPEC
750344399SPEC
750344650SPEC
750344651SPEC
750344508SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCVR
(V (AC))
Safety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
L
(mm)
W
(mm)
H
(mm)
PackagingEndurance
(h)
IRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Ø D
(mm)
Samples