This reference design is a 50W active clamp forward converter with synchronous rectification on the secondary side. The design provides an isolated, 3.3V/15A output from a standard telecom -36V to -72V input at >91% efficiency. PMP20850 utilizes a self driven, synchronous rectifier which requires no secondary gate driver which minimizes cost and improves efficiency. This device also features programmable dead-time, which is fine tuned to maximize efficiency of the design. Output voltage regulation is based on current mode control, simplifying loop compensation. PMP20850 features a catalog transformer, minimizing the cost of magnetics in the design.
| Output voltage options | PMP20850.1 |
|---|---|
| Vin (Min) (V) | -72 |
| Vin (Max) (V) | -36 |
| Vout (Nom) (V) | 3.3 |
| Iout (Max) (A) | 15 |
| Output Power (W) | 49.5 |
| Isolated/Non-Isolated | Isolated |
| Input Type | DC |
| Topology | Forward- Active Clamp |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | PMP20850 Test Results | Jun. 19, 2017 |
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