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Texas Instruments LM5021 | Demoboard PMP30280

Ultra-wide Input Range (48VAC to 240VAC) Flyback Reference Design

Overview

TopologyFlyback Converter
Input voltage48-240 V
Switching frequency135-560 kHz
Output 16 V / 1.2 A
IC revisionB

Description

The PMP30280 reference design generates two isolated outputs (6V @ 1.2A / 20V @ 0.15A) from an AC input (48VAC to 240VAC). The LM5021 operates at either a fixed switching frequency or in a skip cycle mode when the converter load is light. The design uses an optical coupler to regulate the output and to improve transient response.

Features

  • Isolated outputs
  • Wide input range
  • Optocoupler feedback provides accurate regulation
  • Test report available

Typical applications

  • Building Automation and White Goods SMPS
  • Isolated Telecom Power Supplies
  • Industrial Power Conversion / SMPS for Smart Meters and Audio Amplifiers
  • DCM/CCM Flyback Converters

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCEndurance
(h)
Operating TemperatureIRIPPLE
(mA)
RESR
(mΩ)
ILeak
(µA)
DF
(%)
Ø D
(mm)
PackagingIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples
875115250001SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-PSHP Aluminum Polymer Capacitors330 µF 2000 -55 °C up to +105 °C 3500 20 660 8 8 15" Tape & Reel 10 7.7 8.3 V-Chip SMT
744821150SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-CMB Common Mode Power Line Choke -40 °C up to +125 °C 1 5 220 250 1500 MnZn 15 7.8 18 THT
Order Code Data­sheet Simu­lation
875115250001SPEC
744821150SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCEndurance
(h)
Operating TemperatureIRIPPLE
(mA)
RESR
(mΩ)
ILeak
(µA)
DF
(%)
Ø D
(mm)
PackagingIR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (DC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples