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Power Integrations LNK4115D | Demoboard DER-554

18 W Constant Voltage / Constant Current (CV / CC), Universal Input, Isolated Flyback Converter Using LinkSwitch TM -4 LNK4115D

Overview

TopologyFlyback Converter
Input voltage85-265 V
Output 112 V / 1.5 A
IC revision1

Description

This document is an engineering report describing a 1.5 A, 12 V isolated flyback converter utilizing the LinkSwitch-4 family of ICs. This document contains the power supply specification, schematic, bill of materials, transformer documentation, printed circuit layout, and performance data.

Features

  • Single-stage, constant voltage (CV) and constant current (CC) converter
  • Primary-side regulated (no optocoupler)
  • Cable voltage drop compensation function
  • Highly optimized BJT drive for low switching loss and higher overall efficiency
  • Meets CoC and DoE efficiency requirement using 1 meter, #22 AWG cable
  • ±3% constant voltage (CV) regulation
  • ±5% constant current (CC) regulation
  • <40 mW no-load input power
  • <150 mVPK-PK voltage ripple
  • At least 5 dB to 6 dB conducted EMI margin (with earth)
  • Accurate regulation for line input and output load variations

More information

Products

Order Code Data­sheet Simu­lation Downloads Product seriesIR
(A)
L
(mH)
RDC max.
(Ω)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples
744862056SPEC
8 files WE-TFC Common Mode Power Line Choke 0.6 5.6 0.83 300 2500 MnZn 17 11.5 17 THT
Order Code Data­sheet Simu­lation
744862056SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesIR
(A)
L
(mH)
RDC max.
(Ω)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
Mount Samples