18V-75V Input, 12V@12A Active Clamp Forward


Design files


This reference design provides 12V at 12A from a wide range 18V-75V telecom input with greater than 94% efficiency. This design uses the UCC2897A active clamp controller with synchronous rectifiers for an efficient, yet cost effective solution that can operate from either a 24VDC or 48VDC input bus.

Output voltage options PMP8380.1
Vin (Min) (V) 18
Vin (Max) (V) 75
Vout (Nom) (V) 12
Iout (Max) (A) 12
Output Power (W) 144
Isolated/Non-Isolated Isolated
Input Type DC
Topology Forward- Active Clamp
?? View video with transcript Video

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.

SLUUA27.PDF (2444 K)

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

SLUR962.PDF (85 K)

Detailed schematic diagram for design layout and components

SLUR961.PDF (19 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: PDF | HTML

Technical documentation

No results found. Please clear your search and try again.
View all 2
Type Title Date
Application note PMP8380 Mod List Mar. 06, 2013
Test report PMP8380 Test Results Oct. 01, 2012

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​