TLP172G is a Toshiba photocoupler/photorelay suitable for modem applications that require space savings.
The TLP172G is a gallium arsenide infrared emitting diode optically coupled to a photo‑MOSFET in a 4‑pin SOP package, intended for surface‑mount assembly in modem and other telecommunications applications. The document lists package dimensions, pin configuration, and general handling notes.
Detailed electrical specifications are given, including maximum ratings, recommended operating conditions, forward and reverse characteristics, isolation performance, and switching times. The final section outlines restrictions on product use and safety considerations for designers.
| Off‑state output voltage (VOFF) | 350 V (min) |
|---|---|
| Isolation voltage | 1500 Vrms (min) |
| Trigger LED current | 3 mA (max) |
The off‑state output terminal voltage is rated at a minimum of 350 V.
The recommended supply voltage is 280 V.
The isolation voltage is specified as 1500 Vrms (min) for AC tests.