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reference designLM5036 | Demoboard PMP40500

Texas Instruments LM5036 | Demoboard PMP40500

54-Vdc input, 12-V 4-A output half-bridge reference design

Overview

TopologyFlyBuck (Double Buck)
Input voltage36-75 V
Switching frequency185-540 kHz
Output 19 V / 0.05 A
Output 29 V / 0.05 A
IC revisionE1

Description

This 12-V, 42-A output half-bridge reference design is for bus converters in wired networking campus and branch switches. The design features high efficiency and various fault protections (over-current, short-circuit). The guide provides a efficiency comparison using 3kVrms basic and functional isolated gate driver UCC21220D, UCC21220AD, UCC21222D and 5.7-kVrms reinforced isolated gate driver UCC21540D, UCC21540DWK and UCC21541DW.

Features

  • Peak efficiency up to 94.62%
  • Lower system cost through integrating 100-V auxiliary bias converter
  • Enhanced cycle-by-cycle current limit with pulse matching
  • Fully regulated pre-biased start-up

Typical applications

  • Industrial power supplies and factory automation / Test, measurement equipment
  • Bus converters in wired networking campus and branch switches

More information

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VIN
VOut1(V)
IOut1(A)
Vbuck(V)
L(µH)
NPRI : NSEC
LS(µH)
VT(V (AC))
fswitch(kHz)
Mount
L(mm)
W(mm)
H(mm)
Samples
750344207
WE-IBTI Isolated Buck Transformers, 36 - 75 V (DC), 9 V
Simu­lation
Downloads9 files

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CAD files ZIP

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Download all 9 files as zip archive
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-IBTI Isolated Buck Transformers
Input Voltage 36 - 75 V (DC)
Output Voltage 19 V
Output Current 10.05 A
Buck Voltage9 V
Inductance150 µH
Turns Ratio1:1 
Leakage Inductance3.4 µH
Insulation Test Voltage3000 V (AC)
Switching Frequency 600
MountSMT 
Length12.4 mm
Width13.8 mm
Height13.6 mm