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Texas Instruments UCC28740 | Demoboard PMP41031
350-V to 1500-V input, 150-W isolated auxiliary power reference design
Overview
| Topology | Flyback Converter |
| Input voltage | 350-1500 V |
| Output 1 | 15 V / 3 A |
| Output 2 | 8 V / 2 A |
| Output 3 | 15 V / 0.8 A |
| Output 4 | 24 V / 3 A |
| IC revision | E1 |
Description
This reference design provides four isolated outputs of 24 V,15 V, –15 V, 8 V and maximum 150-W output with two-switch flyback topology. The power supply can be powered from 350-V to 1500-V DC input. This design uses the valley switching UCC28740 flyback controller . The design achieves 89.11% efficiency at 600-V input and 86.17% efficiency at 1500-V input, full-load condition.
Features
- Wide input range from 350-V to 1500-V DC
- Two-switch flyback topology recycles leakage energy
- Quasi-resonant mode controller improves efficiency
- Less voltage stress on the primary switch
- Peak efficiency of 89.11% at 600-V input and 150-W output
- 86.17% efficiency at 1500-V input and 150-W output
Typical applications
- Central inverter; DC fast charging station; Fuel cell inverter; Power conversion system (PCS); Single phase string inverter; Three Phase String Inverter
More information
Products
| Order Code | Datasheet | Downloads | Status | Product series | n | L (µH) | ∫Udt (µVs) | VT (V (AC)) | CWW 1 (pF) | LS (µH) | Size | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 760301302 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WE-GDTI Gate-Drive-Transformer | 1:1 | 750 | 102 | 2500 | 11 | 4 | EP7 | |
 | 750345142 | SPEC | – | Active i| Production is active. Expected lifetime: >10 years. | Flyback Transformer | – | – | – | – | – | – | – |
| Order Code | Datasheet | |
|---|---|---|
| 760301302 | SPEC PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. |
| 750345142 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Downloads | Status | Product series | n | L (µH) | ∫Udt (µVs) | VT (V (AC)) | CWW 1 (pF) | LS (µH) | Size | Samples |
|---|
