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Texas Instruments UCC28730 | Demoboard PMP41063
300-V-1,000V input 48-W isolated auxiliary power reference design with low standby power
Overview
| Topology | Flyback Converter |
| Input voltage | 300-1000 V |
| Output 1 | 12 V / 4 A |
| IC revision | 001 |
Description
This reference design provides an isolated 12-V, 48-W output power conversion with cascaded flyback topology. The power supply can be powered from the 300-V to 1,000-V direct current (DC) input. This design uses valley switching flyback controller UCC28730 to achieve less than 70-mW low standby power consumption at 1,000-V input voltage to extend the battery lifetime.
Features
- Wide input-voltage range from 300-V to 1,000-V input voltage
- Less than 70-mW no-load power consumption at 1,000-V input voltage
- Primary-side regulation design (no optocoupler) extend product lifetime
- Minimized output undershoot and overshoot during load transient
- Uniform start-up time across input voltage range
- 86.14% efficiency at 1,000-V input and 48-W output
Typical applications
- 300V-1000V input 48-W isolated auxiliary power
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | Size | Operating Temperature | Q | RISO | Ceramic Type | Fl (mm) | Packaging | IRP,40K (A) | ISAT (A) | fres (MHz) | Version | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012006030 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 4.7 pF | ±0.5pF | 0603 | -55 °C up to +125 °C | 494 | 10 GΩ | NP0 Class I | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | 25 | – | – | 1.6 | 0.8 | 0.8 | – | ||
 | 744821201 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CMB Common Mode Power Line Choke | – | – | XS | -40 °C up to +125 °C | – | – | – | – | – | – | – | – | THT | 2 | 1 | 45 | 250 | 1500 | MnZn | 15 | 7.8 | 18 | THT | ||
| 744821110 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CMB Common Mode Power Line Choke | – | – | XS | -40 °C up to +125 °C | – | – | – | – | – | – | – | – | THT | 0.7 | 10 | 350 | 250 | 1500 | MnZn | 15 | 7.5 | 18 | THT | ||
 | 744777001 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD SMT Power Inductor | – | – | 7345 | -40 °C up to +125 °C | – | – | – | – | – | 8.6 | 10.2 | 100 | Standard | 6.84 | 0.001 | 10 | – | – | – | 7.3 | 7.3 | 4.5 | SMT | ||
| 750345387 | SPEC | – | – | New i| Product is new in our portfolio and production is active. Expected lifetime: >10 years. | Flyback Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012006030 | SPEC | |
| 744821201 | SPEC | |
| 744821110 | SPEC | |
| 744777001 | SPEC | |
| 750345387 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | Size | Operating Temperature | Q | RISO | Ceramic Type | Fl (mm) | Packaging | IRP,40K (A) | ISAT (A) | fres (MHz) | Version | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
|---|