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Texas Instruments LM5021 | Demoboard PMP30280
Ultra-wide Input Range (48VAC to 240VAC) Flyback Reference Design
Overview
| Topology | Flyback Converter |
| Input voltage | 48-240 V |
| Switching frequency | 135-560 kHz |
| Output 1 | 6 V / 1.2 A |
| IC revision | B |
Description
The PMP30280 reference design generates two isolated outputs (6V @ 1.2A / 20V @ 0.15A) from an AC input (48VAC to 240VAC). The LM5021 operates at either a fixed switching frequency or in a skip cycle mode when the converter load is light. The design uses an optical coupler to regulate the output and to improve transient response.
Features
- Isolated outputs
- Wide input range
- Optocoupler feedback provides accurate regulation
- Test report available
Typical applications
- Isolated Telecom Power Supplies
- Industrial Power Conversion / SMPS for Smart Meters and Audio Amplifiers
- DCM/CCM Flyback Converters
- Building Automation and White Goods SMPS
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | C | Endurance (h) | Operating Temperature | IRIPPLE (mA) | RESR (mΩ) | ILeak (µA) | DF (%) | Ø D (mm) | Packaging | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 875115250001 | SPEC | 7 files | WCAP-PSHP Aluminum Polymer Capacitors | 330 µF | 2000 | -55 °C up to +105 °C | 3500 | 20 | 660 | 8 | 8 | 15" Tape & Reel | – | – | – | 10 | – | – | 7.7 | 8.3 | – | V-Chip SMT | ||
 | 744821150 | SPEC | 9 files | WE-CMB Common Mode Power Line Choke | – | – | -40 °C up to +125 °C | – | – | – | – | – | – | 1 | 5 | 220 | 250 | 1500 | MnZn | 15 | 7.8 | 18 | THT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 875115250001 | SPEC | |
| 744821150 | SPEC |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | C | Endurance (h) | Operating Temperature | IRIPPLE (mA) | RESR (mΩ) | ILeak (µA) | DF (%) | Ø D (mm) | Packaging | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
|---|