PMP30276

440VAC Input Tampering Protected Valley Switching Flyback Reference Design

PMP30276

Design files

Overview

The PMP30276 is a tampering protected power supply reference design which can withstand an external magnetic field of 200mT. The frequency and amplitude modulation modes and the transformer were optimized for the protection against magnetic tampering at the expense of efficiency. The design uses the UCC28740 flyback controller to generate an isolated output 12V@0.5A (1.0A peak) from an AC input (156VAC-440VAC). The UCC28740 uses an optical coupler to regulate the output and to improve transient response.

Features
  • Isolated output
  • Valley switching
  • Good transient response
  • Integrated 700V startup switch
  • Test report available
Output voltage options PMP30276.1
Vin (Min) (V) 156
Vin (Max) (V) 440
Vout (Nom) (V) 12
Iout (Max) (A) .5
Output Power (W) 6
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback- DCM
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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.

TIDUDX0.PDF (1587 K)

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

TIDRTU1.PDF (146 K)

Detailed schematic diagram for design layout and components

TIDRTU2.PDF (36 K)

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

TIDRTU3.PDF (128 K)

Detailed overview of design layout for component placement

TIDRTU5.ZIP (794 K)

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

TIDCE31.ZIP (106 K)

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

TIDRTU4.PDF (137 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCC28740Constant-Voltage, Constant-Current (CVCC) Flyback controller with Secondary Side Regulation (SSR)

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP30276 Test Results Nov. 30, 2017

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