This document contains the circuit diagram of the Product.
The 444VFN2 is a miniaturized infrared receiver module designed for remote‑control systems. It integrates a photodiode and preamplifier in a single epoxy package that also acts as an IR filter. The module is intended for use in AV equipment such as TV sets, VCRs and audio gear, as well as household appliances like air conditioners and electric fans.
The datasheet lists the electrical ratings, electro‑optical characteristics, and reliability test conditions. Key parameters include a wide operating voltage of 2.7 ~ 6.0 V, low supply current, high‑speed response, and built‑in immunity to ambient light disturbances. Mechanical dimensions, packaging details, and handling precautions are also provided.
| Operating Voltage | 2.7 ~ 6.0 V |
|---|---|
| Supply Current | 3.0 mA |
| Output Voltage | 70 V |
| Operating Temperature | -10 °C ~ 60 °C |
| Storage Temperature | -25 °C ~ 75 °C |
| Soldering Temperature | 260 °C for 5 s |
| Resonance Frequency | 38 kHz |
| Peak Wavelength | 980 nm |
| High‑level Output Voltage (Voh) | 5.0 V |
| Low‑level Output Voltage (Vol) | 0.2 V |
| Output Pulse Width (Tpw) | 600 µs (typical) |
The module operates from 2.7 V to 6.0 V.
The high‑level output voltage (Voh) is typically 5.0 V.
The resonance frequency is 38 kHz.
It can be used in AV equipment such as TV sets, VCRs, audio gear, and in household appliances like air conditioners and electric fans.