TLP222G and TLP222G-2 are bi-directional switches produced by Toshiba. They can replace mechanical relays in many applications.
The TLP222G series from Toshiba are gallium‑arsenide infrared emitting diode optically coupled to a photo‑MOSFET in a DIP package. The TLP222G is a single‑channel device (4‑pin DIP) and the TLP222G‑2 is a dual‑channel device (8‑pin DIP) that can replace mechanical relays in many applications such as cordless telephones, PBX and modems.
The document provides maximum ratings, electrical characteristics, isolation specifications, switching times and temperature‑dependent performance data. It also includes handling, safety and reliability notes for designers using these components in electronic equipment.
| Off‑state voltage (V_OFF) | 350 V (min) |
|---|---|
| Trigger LED current (I_FT) | 3 mA (max) |
| Isolation voltage (BV_S) | 2500 Vrms (min) |
The device is rated for a minimum off‑state voltage of 350 V.
The trigger LED current is limited to a maximum of 3 mA.
The TLP222G‑2 can handle up to 120 mA on‑state current.
The isolation voltage is specified as 2500 Vrms minimum.