IC manufacturers Texas Instruments

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Texas Instruments UCC256301 | Demoboard TIDA-010038

94% peak efficiency, 150-W norm, 240-W peak, industrial AC/DC power supply with CC/CV reference design

Overview

TopologyLLC Resonant Converter
Input voltage85-265 V
Switching frequency35-1000 kHz
Output 128 V / 10 A
IC revision001

Description

This compact, high efficiency, 24V DC, 150W nominal, 240W peak output at 230VAC reference design is targeted for industrial AC/DC power supplies. The circuit consists of a frontend transition mode (TrM) power factor correction(PFC) circuit based on the UCC28056, followed by a robust LLC stage for an isolated DC/DC converter based on the UCC256301. For high efficiency needs, synchronous rectification is done with the UCC24624. This design does not need an additional auxiliary power supply to meet no-load consumption. The design enables 94% peak efficiency and allows the system to work without forced cooling. This design has both constant current(CC) and constant voltage(CV) feedback loop which is suitable for battery charger application.

Features

  • Wide operation input range of 90 to 265V AC with full power delivery over entire range
  • Peak overall efficiency of 94.4% at 230V AC and 93% at 115V AC, enables natrual convection cooling
  • Delivers up to 6.25A continuous current and up to 10A peak current for 3 seconds
  • Adjustable output voltage from 22 to 28V
  • Very low no load power consumption of <400mW
  • System protected for overcurrent, short-circuit, and overvoltage ensuring safety needs

Typical applications

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples
890324025039SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTX2 Film Capacitors Across the mains470 nF X2 220 0.121.28 GΩ -40 °C up to +105 °C 15 Bulk 275 18 8 14 Boxed THT
744821201SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-CMB Common Mode Power Line Choke -40 °C up to +125 °C 2 1 45 250 1500 MnZn 15 7.8 18 THT
744823210SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-CMB Common Mode Power Line Choke -40 °C up to +125 °C 2 10 125 250 1500 MnZn 23 13.8 26.5 THT
7447060SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WE-FI Leaded Toroidal Line Choke 2.5 0.3 150 21 11.2 THT
750344060SPEC
Active i| Production is active. Expected lifetime: >10 years. Power Transformer
Order Code Data­sheet Simu­lation
890324025039SPEC
744821201SPEC
744823210SPEC
7447060SPEC
750344060SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples