10 to 40W Planar Transformers
Description
Payton SIZE 20 provides a planar solution for low power applications (such as telecommunication) providing high efficiency, low EMI, excellent repeatability, low profile and weight with an operating temperature range of -40°C to +130°C.
Transformer Application
| POWER CAPACITY | DIMENSIONS (mm) | TYPICAL WEIGHT | DIELECTRIC ISOLATION | OPERATING VOLTAGE | OPERATING CURRENT (RMS) |
|---|---|---|---|---|---|
| 10W, flyback at 100 kHz 30W, forward at 500 kHz | L=15-20 W=16 H=5-8 | 4-6 gr. | Up to 1500 Vrms | 100 Vpeak max. | 10 A max. |
- Typical efficiency: 97-99%
- Recommended frequency range: 100 kHz - 2.5 MHz.
- Topologies (in order of preference): Full bridge; Half bridge; Push-Pull; Forward; Flyback; Boost; Buck; Resonant topologies.
- Mounting Options: a. Horizontal, b. Vertical
Inductor Application
| STANDARD AL(nH/t2) | 630 | 400 | 315 | 160 | 100 | 63 |
|---|---|---|---|---|---|---|
| TYPICAL VALUE OF MAX. Amper Turns | 7 | 14 | 19 | 42 | 70 | 110 |
AL values not listed are available upon request.
Typical Thermal Impedance For Different Cooling Conditions
| NATURAL COOLING (Hot Spot - Air) | BLOWING AIR 3m/sec (Hot Spot-Air) | ONE SIDE HEATSINK (Hot Spot - Heatsink) | TWO SIDES HEATSINK (Hot Spot-Heatsink) |
|---|---|---|---|
| 65 °C/W | 35 °C/W | 20 °C/W | 10 °C/W |
EXAMPLE: Transformer Type T20 DC P.N. 18546
This T20-12-2, low power, miniature planar transformer is developed for a low power DC-DC converter and may be used in telecommunication equipment, providing the following specifications:
