The TLP628, −2, and −4 are TOSHIBA photocouplers which use a gallium arsenide infrared emitting diode optically coupled to a phototransistor. The TLP628−2 offers two isolated channels in a eight lead plastic DIP package, while the TLP628−4 provide four isolated channels per package.
The TLP628, TLP628‑2, and TLP628‑4 are gallium‑arsenide infrared emitting diode photocouplers with an integrated phototransistor. They offer isolation voltages up to 5000 Vrms and are supplied in 8‑lead DIP packages with 2 or 4 isolated channels.
The document lists absolute maximum ratings, recommended operating conditions, individual and coupled electrical characteristics, switching performance, and safety restrictions. It also includes pin configurations and reliability notes for designers.
| Collector‑emitter breakdown voltage | 350 V (min) |
|---|---|
| Current transfer ratio (CTR) | 50 % (min) |
| Forward voltage at IF=10 mA | 1.15 V (typ) |
| Operating temperature range | -25 °C to 85 °C |
The recommended supply voltage can be up to 200 V.
Typical forward voltage is 1.15 V.
The minimum collector‑emitter breakdown voltage is 350 V.