36V-72VDC Input Active Clamp Forward With Dual 12V/50W Outputs
PMP4028
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Description

This power supply design generates a 12V/100W isolated output from a standard 48V telecom input. An active clamp forward converter is controlled by the UCC2897A. The INA202 and an external PFET are used to provide a current limited 12V/4.5A output derived from the main 12V output of the forward converter. This power supply has a peak efficiency of over 94%.

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  




Parametrics
 PMP4028.1
(Output Voltage 1)
Vin (Min) (V)36
Vin (Max) (V)72
Vout (Nom) (V)12
Iout (Max) (A)4.5
Output Power (W)54
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyForward- Active Clamp
Forward- Synchronous

TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
INA202  80V, Low-/High-side, High-Speed, Voltage Output Current Sense Amp with Comparator  Current sense amplifiers  Sample & Buy Not Available
UCC2897A  Advanced Current-Mode Active Clamp PWM Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
INA202 Download Download
Download Download
UCC2897A Download Download
Download Download

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Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 720 04 Jun 2012
Design files (4)
Title Type Size (KB) Date
ZIP 123 04 Jun 2012
PDF 95 04 Jun 2012
PDF 29 04 Jun 2012
PDF 98 04 Jun 2012

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