Phase-Shifted Full-Bridge PWM Controller Module – LM5046 Breakout Board

  • Rajkumar Sharma
  • 272 Views
  • easy
  • Tested

This is a Phase-Shifted Full-Bridge PWM LM5046 carrier board that contains all of the features necessary to implement a phase-shifted full-bridge topology power converter. All inputs and outputs pins are accessible using the header connector. High efficiency DC-DC converter can be created using LM5046 carrier board + External H-Bridge and Transformer. Refer to the datasheet of LM5046 and schematic to configure the frequency, current feedback, delays, etc.

Features

  • Operating Power Supply 36V (Range 36V to 75V DC)
  • Under Voltage Lockout UVLO (34V/32V ON/OFF)
  • Frequency Of Operations 420Khz (Programmable up to 2Mhz- Set Resistor R10)
  • Highest Integration Controller for Small
  • Form Factor, High-Density Power Converters
  • High-Voltage Start-Up Regulator
  • Intelligent Sync Rectifier Start-Up Allows
  • Linear Turn-on into Pre-biased Loads
  • Synchronous Rectifiers Disabled in UVLO Mode and Hiccup Mode
  • Two Independent, Programmable Dead-Time
  • Adjustments to Enable Zero-Volt Switching
  • Four High-Current 2-A Bridge-Gate Drivers
  • Wide-Bandwidth Opto-Coupler Interface
  • Configurable for Either Current-Mode or Voltage Mode Control
  • Dual-Mode Overcurrent Protection
  • Resistor Programmed 2-MHz Oscillator
  • Programmable Line UVLO and OVP
  • PCB Dimensions 36.20 x 25.40 mm

Connector CN1: Connections

  • PIN 1 VIN 36V (36V-75V RANGE)
  • PIN 2 HS2
  • PIN 3 HO1
  • PIN 4 LO1
  • PIN 5 GND
  • PIN 6 LO2
  • PIN 7 HO2
  • PIN 8 HS2
  • PIN 9 SR1
  • PIN 10 SR2
  • PIN 11 CS-CURRENT SENSE
  • PIN 12 COMP
  • PIN 13 REF VOLT OUT
  • PIN 14 GND

Schematic

Parts List

NOQNTY.REF.DESCMANUFACTURERSUPPLIERSUPPLIER PART NO
11CN114 PIN MALE HEADER PITCH 2.54MMSULIN DIGIKEYS1011EC-40-ND
21C10.1uF/100V SMD SIZE 0805MURATA/YAGEODIGIKEY
31C21KPF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
45C3,C5,C6,C7,C100.1uF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
51C4100PF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
61C80.01uF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
71C90.022uF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
81C111uF/100VMURATADIGIKEY490-14436-1-ND
91D1LED RED SMD SIZE 0805LITE ONDIGIKEY160-1427-1-ND
103D2,D3,D41N4148MICROCHIPDIGIKEY1086-15170-ND
111R120E 5% SMD SIZE 0805MURATA/YAGEODIGIKEY
121R2100K 1% SMD SIZE 0805MURATA/YAGEODIGIKEY
131R30E SMD SIZE 0805MURATA/YAGEODIGIKEY
141R43K 1% SMD SIZE 0805MURATA/YAGEODIGIKEY
151R56.04K 1% SMD SIZE 0805MURATA/YAGEODIGIKEY
161R62.61K 1% SMD SIZE 0805MURATA/YAGEODIGIKEY
171R71.65K 1% SMD SIZE 0805MURATA/YAGEODIGIKEY
182R8,R12499E 1% SMD SIZE 0805MURATA/YAGEODIGIKEY
191R918E 1% SMD SIZE 0805MURATA/YAGEODIGIKEY
201R1024K 1% SMD SIZE 0805MURATA/YAGEODIGIKEY
211R1115K 1% SMD SIZE 0805MURATA/YAGEODIGIKEY
221U1LM5046TIDIGIKEYLM5046MH/NOPB-ND

Connections

Block Diagram

Functional Diagram

Timing Diagrams

Gerber View

Photos

Video

LM5046 Datasheet

lm5046

PCB

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