IC manufacturers Texas Instruments

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Texas Instruments UCC256302 | Demoboard PMP21582

260 W off-line multiple-output LLC-SRC reference design

Overview

TopologyLLC Resonant Converter
Input voltage100-130 V
Switching frequency35-1000 kHz
Output 113.8 V / 0.8 A
Output 23.3 V / 0.2 A
Output 330 V / 8.33 A
IC revisionB

Description

This reference design uses UCC256302 LLC resonant controller to provide US-line AC input to a 30-V, 250-W output and a 13.8-V, 11-W output conversion. The low profile design has a maximum height of 1 inch. This design achieves 94% peak efficiency at 120-VAC input.

Features

  • US-line AC input is narrow enough for a single-stage LLC design that does not require a PFC
  • 94% peak efficiency achieved with non-synchronous rectifier output
  • Low-profile board design for a smaller solution size compared to AC transformer
  • Tight-cross regulation for 30-V DC motor outputIntegrated resonant inductor allows for smaller BOM count

Typical applications

  • Digital TV SMPS / Appliances
  • Multi-Functional Printers / Projectors / ATX Power Supply
  • High Power Battery Charging
  • Industrial AC-DC
  • AC-DC Adapter / Merchant DC-to-DC / DIN Rail Power Supply
  • Multi-Axis Servo
  • LED Lighting Applications

More information

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)
PackagingTol. CSizeOperating TemperatureDF
(%)
Ceramic TypeFl
(mm)
L
(µH)
IR
(A)
RDC max.
(Ω)
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 ±10% Pitch 12.5 mm -40 °C up to +105 °C
7447016SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WE-FI Leaded Toroidal Line Choke 19 11.1 -40 °C up to +105 °C 29 8 0.015
885012205055SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)100 pF 5010 GΩ 1 0.5 0.5 7" Tape & Reel ±10% 0402 -55 °C up to +125 °C 2.5 X7R Class II 0.25
750318019SPEC
Active i| Production is active. Expected lifetime: >10 years. Common Mode Choke
Order Code Data­sheet Simu­lation
890324024005SPEC
7447016SPEC
885012205055SPEC
750318019SPEC
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)
PackagingTol. CSizeOperating TemperatureDF
(%)
Ceramic TypeFl
(mm)
L
(µH)
IR
(A)
RDC max.
(Ω)
Samples