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Overview
| Topology | Flyback Converter |
| Input voltage | 40-180 V |
| Switching frequency | 91-106 kHz |
| Output 1 | 24 V / 2 A |
Description
This reference design is an auxiliary power supply with 24-V, 2-A output. The line and load regulation of the power supply is designed to be within 1% using secondary side regulator UCC28740. All components are on the toplayer and the size is the industrial standard half-brick dimension.
Features
- Less than 10-mW No-Load Power Capability
- Optocoupled Feedback for CV, and Primary-Side Regulation (PSR) for CC
- Enables ±1% Voltage Regulation and ±5% Current Regulation Across Line and Load
- 700-V Startup Switch
- 100-kHz Maximum Switching Frequency Enables High-Power-Density Charger Designs
- Resonant-Ring Valley-Switching Operation for Highest Overall Efficiency
- Frequency Dithering to Ease EMI Compliance
- Clamped Gate-Drive Output for MOSFET
- Overvoltage, Low-Line, and Overcurrent Protection Functions
- SOIC-7 Package
Typical applications
- Power train
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1(V) | IOut1(A) | Vaux(V) | L(µH) | n | ISAT(A) | LS(µH) | VT(V (AC)) | Size | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-FLYTI Flyback Transformers, 40 - 180 V (DC), 24 V | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FLYTI Flyback Transformers | Input Voltage 40 - 180 V (DC) | Output Voltage 124 V | Output Current 12 A | Auxiliary Voltage13 V | Inductance65 µH | Turns Ratio1.85:1:0.54 | Saturation Current7.95 A | Leakage Inductance1 µH | Insulation Test Voltage2000 V (AC) | SizeEFD25 |