This document introduces the features and characteristics of Yaohua's DY and XXDXX-W1/W2/W5 series DC-DC converters. These products have the advantages of small size, high efficiency, high isolation voltage, high reliability, and low cost. They are suitable for digital signal processing circuits and analog circuits with low voltage stability requirements, especially for distributed power supply systems and circuits powered by low-power sources. For circuits with higher voltage stability and ripple noise sensitivity, the WDY series products are recommended.
The manual provides an overview of the Yaohua DY XXDXX-W1/W2/W5 series of isolated DC-DC converters, highlighting their compact size, high efficiency, high isolation voltage, and reliability. General characteristics such as insulation strength, temperature ranges, and cooling method are listed.
Detailed sections include input and output specifications, mechanical dimensions, pin configuration, performance curves, and practical notes on load selection, short‑circuit protection, and filtering for low‑noise applications. This manual is written in Chinese.
| Insulation Strength | TI0007DC |
|---|---|
| Insulation Resistance | 1000H2 |
| Storage Temperature | -40~125°C |
| Operating Temperature | -40‑85°C |
| Cooling Method | Natural air cooling |
| Input Voltage Types | 3.3 V, 5 V, 12 V, 15 V, 24 V DC |
| Full‑load Output Power | 0.1 W / 0.25 W / 0.5 W |
| Ripple and Noise | 40 mV‑60 mV p‑p max (20 MHz bandwidth) |
| Temperature Drift Coefficient | 0.02 %/°C (typical) |
Use a load between 30 % and 80 % of full load for best performance.
Add a self‑recovering PTC fuse at the input, sized at about twice the full‑load current.
The converters operate from –40 °C to 85 °C.