PMP5298

SEPIC (5V@250mA) for Auxiliary Bias Supply

PMP5298

Design files

Overview

The PMP5298 reference design provides an isolated 5V at 250mA from a 120VAC/60Hz input in less than 1 square inch of board space. This design uses the UCC3813-5 in a non-isolated SEPIC topology. The SEPIC clamping capacitor reduces ringing on the drain of the MOSFET and recaptures leakage energy to improve efficiency.

Output voltage options PMP5298.1
Vin (Min) (V) 85
Vin (Max) (V) 132
Vout (Nom) (V) 5
Iout (Max) (A) .25
Output Power (W) 1.25
Isolated/Non-Isolated Non-Isolated
Input Type AC
Topology Sepic- CCM

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.

SLUR062.PDF (1073 K)

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

SLUR061.PDF (45 K)

Detailed schematic diagram for design layout and components

SLUR060.PDF (18 K)

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

Products

Includes TI products in the design and potential alternatives.

PWM controllers

UCC3813-0Economy low power BICMOS 1MHz current mode PWM with 7.2V/6.9V UVLO and 100% duty cycle, 0C to 70C

Data sheet document-pdfAcrobat PDF open-in-new HTML
PWM controllers

UCC3813-1Economy low power BICMOS 1MHz current mode PWM with 9.4V/7.4V UVLO and 50% duty cycle, 0C to 70C

Data sheet document-pdfAcrobat PDF open-in-new HTML
PWM controllers

UCC3813-2Economy BICMOS 1MHz current mode PWM with 12.5V/8.3V UVLO, 100% duty cycle, 0C to 70C

Data sheet document-pdfAcrobat PDF open-in-new HTML
PWM controllers

UCC3813-3Economy low power BICMOS 1MHz current mode PWM with 4.1V/3.6V UVLO, 100% duty cycle, 0C to 70C

Data sheet document-pdfAcrobat PDF open-in-new HTML
PWM controllers

UCC3813-4Economy low power BICMOS 1MHz current mode PWM with 12.5V/8.3V UVLO, 50% duty cycle, 0C to 70C

Data sheet document-pdfAcrobat PDF open-in-new HTML
PWM controllers

UCC3813-5Economylow power BICMOS 1MHz current mode PWM with 4.1V/3.6V UVLO and 50% duty cycle, 0C to 70C

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Technical article Power Tips: Powering the IoT in Our Homes Jun. 11, 2014
Test report PMP5298 Test Results Nov. 10, 2010

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