The TOSHIBA TLP651 consists of a GaAℓAs high-output light emitting diode and a high speed detector of one chip photo diode-transistor. It is suitable for digital logic ground isolation line receiver, microprocessor system interfaces, switching power supply, feedback control etc.
The Toshiba TLP651 is a GaAs infrared photocoupler packaged in an 8‑lead DIP. It combines a high‑output light‑emitting diode with a fast detector photodiode‑transistor, providing digital logic ground isolation for a variety of applications such as microprocessor interfaces, switching power supplies and analog signal isolation.
The datasheet lists absolute maximum ratings, typical electrical characteristics, switching times and recommended handling procedures. It also defines restrictions on product use, emphasizing that the device is not intended for safety‑critical or high‑reliability systems such as aerospace, medical or traffic control equipment.
| Isolation voltage | 5000 V (min) |
|---|---|
| Switching speed (tpHL) | 0.3 µs (typ) |
| Forward current (IF) | 25 mA |
| Output current (lo) | 8 mA |
| Operating temperature range | -55 °C to 100 °C |
| Lead solder temperature (10 s) | 260 °C |
The isolation voltage is specified as 5000 V (minimum).
The forward current (IF) is rated at 25 mA.
Lead soldering may be performed for up to 10 seconds at a temperature of 260 °C.
Yes, the device is not intended for use in safety‑critical applications such as aerospace, medical instruments, traffic signals or any system where failure could cause loss of life or serious injury.