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Texas Instruments LM5155 | Demoboard LM5155EVM-FLY

LM5155EVM-FLY User's Guide

Overview

TopologyFlyback Converter
Input voltage18-36 V
Switching frequency250 kHz
Output 15 V / 4 A

Description

The LM5155EVM-FLY evaluation module showcases the features and performance of the LM5155 as wide input non-synchronous flyback controller. The standard configuration is designed to provide a regulate output of 5V at 4A from an input of 18V to 36V, switching at 250 kHz. This evaluation module is designed for ease of configuration, enabling the user to evaluate many different applications on the same module. The PCB is two layers with components populated only on one side. Functionality includes programmable slope compensation, adjustable soft-start, programmable cycle-by-cycle current limit, hiccup mode short-circuit protection, and programmable line under voltage lockout.

Features

  • Tightly regulated output voltage of 5 V
  • High conversion efficiency of > 86% at full load.
  • Hiccup mode Short Circuit Protection
  • User adjustable secondary side soft-start time
  • 10V Auxiliary winding to power VCC pin
  • 250kHz Switching frequency
  • 2 Layer PCB with components populated on 1 side

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingVINVOut1
(V)
IOut1
(A)
Vaux
(V)
L
(µH)
nISAT
(A)
LS
(nH)
VT
(V (AC))
Samples
885012209028SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 25 V(DC)10 µF ±10% 25 1210 -55 °C up to +125 °C 50.01 GΩ X7R Class II 3.2 2.5 2 0.3 7" Tape & Reel
750317933SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-FLYTI Flyback Transformers EPQ13 -40 °C up to +125 °C 13.97 18.25 14.5 18 - 36 V (DC) 5 4 10 21 2:1:2 6.2 300 1500
Order Code Data­sheet Simu­lation
885012209028SPEC
750317933SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesCTol. CVR
(V (DC))
SizeOperating TemperatureDF
(%)
RISOCeramic TypeL
(mm)
W
(mm)
H
(mm)
Fl
(mm)
PackagingVINVOut1
(V)
IOut1
(A)
Vaux
(V)
L
(µH)
nISAT
(A)
LS
(nH)
VT
(V (AC))
Samples