IC manufacturers Texas Instruments

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Texas Instruments UCC256302 | Demoboard PMP40379

500-W, single stage LLC power supply reference design for audio amplifier

Overview

TopologyLLC Resonant Converter
Input voltage100-120 V
Output 142 V / 12 A
Output 2-42 V / 12 A

Description

This single-stage LLC converter reference design illustrates how to convert AC input voltage (100-120 Vac and 200-240 Vac) to isolated ±42-V DC output with the UCC256302 resonant controller. The design has a regulated ±42-V output that can handle up to 6 A of continuous output current and 12 A of peak current for 100 ms.

Features

  • 100–120-Vac or 200–240-Vac input range operation without front-end PFC
  • Provides ±42-V at 6-A continuous/12-A peak output current for audio amplifier
  • More than 95% peak efficiency and less than 500-mW standby power consumption at 230-Vac

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
890324025039CSSPEC
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 Carton 275 18 8 14 Boxed THT
7448051012SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-CMBNC Common Mode Power Line Choke Nanocrystalline 10 12 15 300 2100 Nanocrystalline 34 23 34 THT
750343844SPEC
Active i| Production is active. Expected lifetime: >10 years. LLC Transformer
Order Code Data­sheet Simu­lation
890324025039CSSPEC
7448051012SPEC
750343844SPEC
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