PMP8781

Primary-Side Regulated Flyback with 85 to 265VAC Input (16.5V @ 1A) Reference Design

PMP8781

Design files

Overview

The PMP8781 reference design uses the UCC28700 primary-side regulated flyback controller to generate a 16.5V/1A output from a univeral AC input. The valley switching of the UCC28700 allows this low-cost design to achieve a maximum load efficiency near 85%; no load losses are less than 50mW.

Output voltage options PMP8781.1
Vin (Min) (V) 85
Vin (Max) (V) 265
Vout (Nom) (V) 16.5
Iout (Max) (A) 1
Output Power (W) 16.5
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback- Non Sync^Flyback- Quasi Resonant
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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.

SLUUAC1.PDF (2341 K)

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

SLURA32.PDF (38 K)

Detailed schematic diagram for design layout and components

SLURA33.PDF (16 K)

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

Products

Includes TI products in the design and potential alternatives.

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

UCC28700Constant-voltage, constant-current PWM with PSR & Programmable cable compensation

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP8781 Test Results Feb. 25, 2013

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