36VDC - 75VDC Input, 3.3V@3A Output Isolated Flyback and Synchronous Buck

(ACTIVE) PMP4113

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Description

This reference design uses the UCC2809 to control an isolated flyback that converts a standard 48V telecom input to an isolated 80V. An additional winding on the secondary of the flyback transformer generates an unregulated 12V rail. The TPS40193 controls a synchronous buck that generates a 3.3V/3A output from this 12V rail. The total end-to-end efficiency of this design is over 90%.

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 PMP4113.1
(Output Voltage 1)
PMP4113.2
(Output Voltage 2)
Vin (Min) (V)369
Vin (Max) (V)7514
Vout (Nom) (V)803.3
Iout (Max) (A).53
Output Power (W)409.9
Isolated/Non-IsolatedIsolatedNon-Isolated
Input TypeDCDC
TopologyFlyback- Non SyncBuck- 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
TPS40193  4.5V to 18V Input, Low Pin Count Synchronous Buck Controller with Power Good  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules
UCC2809-2  Economy Primary Side Controller  Offline and Isolated DC/DC Controllers and Converters  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 1515 16 May 2012 14
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 129 16 May 2012 5
PDF 84 16 May 2012 4
PDF 29 16 May 2012 11
PDF 85 16 May 2012 14


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