18Vdc-60Vdc Input, 9.6V @ 15A Output, 94% Efficient Active Clamp Forward


Design files


The PMP6933 reference design provides 9.6V at 15.6A (150W) from a wide range 18V-60V telecom input with greater than 94% efficiency. This design uses the UCC2897A active clamp controller with self-driven synchronous rectifiers to achieve high efficiency.

Output voltage options PMP6933.1
Vin (Min) (V) 18
Vin (Max) (V) 60
Vout (Nom) (V) 9.6
Iout (Max) (A) 15.6
Output Power (W) 149.76
Isolated/Non-Isolated Isolated
Input Type DC
Topology Forward- Active Clamp^Forward- Synchronous

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.

SLUU940.PDF (2537 K)

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

SLUR884.PDF (100 K)

Detailed schematic diagram for design layout and components

SLUR885.PDF (30 K)

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


Includes TI products in the design and potential alternatives.

PWM controllers

UCC2897A110-V active clamp current mode PWM controller with P-channel clamp FET and line OV protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

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

Technical documentation

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Type Title Date
Test report PMP6933 Test Results May 03, 2012

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