This reference design demostrates full-function 1.2KW triple-rail digital power supply solution for telecom application. The input range is 36-60Vin and outputs are two 48V10A(Full bridge) and one 5.5V30A(active clamp). Synchrounous rectifiers are used in the design and the overall efficiency is up to 92%@full load. The full-feature digital solution includes soft start, power up/down sequencing,fast response to input dip, protection features as OVP, OCP, OTP and input UVLO. Other devices like LM34927, UCC27324, UCC27201 are also used to provide bias supply and drive the FETs.
| Output voltage options | PMP4333.1 | PMP4333.2 | PMP4333.3 | PMP4333.4 |
|---|---|---|---|---|
| Vin (Min) (V) | 36 | 36 | 36 | 36 |
| Vin (Max) (V) | 60 | 60 | 60 | 60 |
| Vout (Nom) (V) | 48 | 48 | 5.5 | -8 |
| Iout (Max) (A) | 10 | 10 | 30 | .25 |
| Output Power (W) | 480 | 480 | 165 | 2 |
| Isolated/Non-Isolated | Isolated | Isolated | Isolated | Isolated |
| Input Type | DC | DC | DC | DC |
| Topology | FlyBuck^Forward- Active Clamp | FlyBuck^Forward- Active Clamp | FlyBuck^Forward- Active Clamp | FlyBuck^Forward- Active Clamp |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
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
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Technical article | How to achieve higher system efficiency- part two: high-speed gate drivers | PDF | HTML | Jan. 31, 2017 | |
| Test report | PMP4333 Test Results | May 24, 2013 |
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