IC reference design search
IC manufacturers Texas Instruments

IC manufacturers (104)

reference designLM5155 | Demoboard PMP22151

Texas Instruments LM5155 | Demoboard PMP22151

70-W flyback and 37-W boost power tree reference design

Overview

TopologyBoost Converter
Input voltage27-29 V
Output 137 V / 1 A
IC revisionB

Description

This reference design uses two LM5155 devices to make a flyback and boost power stage. The flyback creates an isolated 28 Vdc bus from a 24 +/-10% Vdc bus and the boost creates a 37 Vdc bus from the output of the flyback. The flyback can be loaded up to 70 W and the boost can be loaded up to 37-W. All components are placed on one side of the board to reduce assembly complexity and cost. Both power stages achieve over 90% efficiency across output conditions.

Features

  • High efficiency flyback and boost power stage
  • Compact size (2" x 3.75") minimizes solution size area
  • Single-side assembly and 2-layer PCB for reduced manufacturing costs

Typical applications

  • Fire alarm control panel (FACP)

More information

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
7447709390
SPECWE-PD SMT Power Inductor, 39 µH, 5 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance39 µH
Performance Rated Current5 A
DC Resistance56 mΩ
Self Resonant Frequency6 MHz
Size1210 
VersionStandard 
–Check availability