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PMP31179

400-W AC/DC reference design for avionics

PMP31179

Design files

Overview

This is a compact, 30-V DC, 400-W reference design for avionics applications that works with mains frequency between 400 Hz and 800 Hz. A two-phase interleaved transition mode (TM) power factor correction (PFC) based on UCC28064A is used to correct power factor and minimizes harmonic content of input current. The DC/DC is implemented using the HB-LLC stage with UCC256404. Efficiency is further improved by using synchronous rectification on the secondary side.

Features
  • Overall efficiency of > 92% at full load with 92.8% peak efficiency
  • High power factor > 0.99, meets PFC regulations and current THD for DO-160 avionics requirements
  • ZCS avoidance feature and OVP sensing feature in LLC controller improve robustness and protect systems from overcurrent, short circuit and overvoltage to ensure safety
  • Board dimensions of 218.44 mm x 102.26 mm, height = 31.75 mm
Output voltage options PMP31179.1 PMP31179.2
Vin (Min) (V) 96 200
Vin (Max) (V) 134 260
Vout (Nom) (V) 240 30
Iout (Max) (A) 1.79 13.3
Output Power (W) 429.6 399
Isolated/Non-Isolated Non-Isolated Isolated
Input Type AC DC
Topology PFC- Multiphase Half Bridge- LLC

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

PDF | HTML
TIDT292.PDF (1565 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDMAK6.PDF (477 K)

Detailed schematic diagram for design layout and components

TIDMAK7.PDF (163 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDMAK8.PDF (465 K)

Detailed overview of design layout for component placement

TIDMAL0.ZIP (3971 K)

Files used for 3D models or 2D drawings of IC components

TIDCG80.ZIP (222 K)

Design file that contains information on physical board layer of design PCB

TIDMAK9.PDF (1305 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Power factor correction (PFC) controllers

UCC28064ANatural Interleaving™ transition-mode PFC controller with high light-load efficiency

Data sheet: PDF | HTML
Comparators

TL331BHigh voltage, cost optimized, single channel comparator

Data sheet: PDF | HTML
Current sense amplifiers analog output

INA18126V, bi-directional, 350kHz current sense amplifier

Data sheet: PDF | HTML
General-purpose op amps

TLV171Single, 36-V, 3-MHz, low-power operational amplifier for cost-sensitive applications

Data sheet: PDF | HTML
LLC controllers

UCC256404LLC resonant controller with ultra-low power, ultra-quiet standby operation and high voltage startup

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

LP2951100-mA, 30-V, low-dropout voltage regulator with power good & enable

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

LP2981100-mA, 16-V, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Low-side drivers

UCC275174-A/4-A single-channel gate driver with 5-V UVLO and 13-ns prop delay in SOT-23 package

Data sheet: PDF | HTML
N-channel MOSFETs

CSD19531KCS100-V, N channel NexFET™ power MOSFET, single TO-220, 7.7 mOhm

Data sheet: PDF | HTML
SR & load share controllers

UCC24612High-frequency multi-mode synchronous rectifier controller

Data sheet: PDF | HTML
Shunt voltage references

LM4040Fixed voltage, 45-µA, precision micropower shunt voltage reference

Data sheet: PDF | HTML
Shunt voltage references

TL431LIAdjustable precision shunt regulator with optimized reference current (pin layout: KRA)

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report 400-W AC/DC Reference Design for Avionics PDF | HTML Jun. 05, 2022

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