Battery Charger with 50V DC Input 20A


Design files


The PMP4308 is a 50V DC in 20A battery charger solution which uses Buck upside-down topology. PWM controller UCC2809 is selected in the design.

Output voltage options PMP4308.1
Vin (Min) (V) 48
Vin (Max) (V) 56.5
Vout (Nom) (V) 50
Iout (Max) (A) 20
Output Power (W) 1000
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Upside Down

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.

SLUU531.PDF (236 K)

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

SLUR323.PDF (86 K)

Detailed schematic diagram for design layout and components

SLUR324.PDF (47 K)

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


Includes TI products in the design and potential alternatives.

PWM controllers

UCC2809-1Economy primary side controller with 10V/8V UVLO, -40C to 85C

Data sheet document-pdfAcrobat PDF
PWM controllers

UCC2809-2Economy primary side controller with 150V/8V UVLO, -40C to 85C

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
Test report PMP4308 Test Results Jul. 28, 2011

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