This datasheet provides detailed information of FOD2741A/B/C, including pin definitions, functions, features, applications, etc.
The FOD2741 series combines a precision 2.5 V reference, an optocoupler and an error‑amplifier in an 8‑pin DIP package. It is intended for isolated AC‑to‑DC power supplies and DC‑DC converters, offering low temperature coefficient and high isolation.
The document provides electrical characteristics, pin definitions, absolute maximum ratings, typical performance curves and handling guidelines such as reflow profile and safety disclaimer.
| Reference voltage | 2.5 V |
|---|---|
| Current transfer ratio (CTR) | 100% to 200% |
| Isolation rating | 5000 Vrms |
| Temperature coefficient | 50 ppm/°C |
| Storage temperature range | -55 °C to +125 °C |
| Operating temperature range | -25 °C to +85 °C |
| Input voltage (LED) | 37 V |
| Input DC current (LED) | 20 mA |
| Collector‑Emitter breakdown voltage | 30 V |
The device provides a 2.5 V reference.
The CTR ranges from 100 % to 200 %.
It is rated for 5000 Vrms isolation.
It operates from –25 °C to +85 °C.