TLP555 is an 8PIN DIP package optocoupler produced by Toshiba. It combines GaAℓAs infrared emitting diode and high-gain high-speed integrated circuit receiving chip. It is suitable for isolated bus drivers, high-speed line receivers, microprocessor system interfaces, MOS FET gate drive, and transistor inverters. It has bidirectional driving capability, and the receiving side has Schmitt circuit and tri-state output circuit, with high common mode noise rejection capability.
The Toshiba TLP555 is a GaAs infrared LED and high‑gain, high‑speed phototransistor optocoupler in an 8‑pin DIP package. It provides isolated bus‑driver, line‑receiver, microprocessor interface and MOS‑FET gate‑drive functions.
The document lists the device’s electrical characteristics, recommended operating conditions, switching performance, pin configuration and handling precautions for designers of industrial and consumer electronics. This manual is written in Japanese.
| Input threshold current (TP) | 1.6 mA (max) |
|---|---|
| Reverse voltage (VR) | 5 V |
| Supply voltage (Vcc) | -0.5 to 20 V |
| Enable voltage (VE) | -0.5 to 20 V |
| Isolation voltage | 2500 Vrms (min) |
| Power dissipation (Po) | 100 mW |
| Total power (PT) | 200 mW |
| Operating temperature | -40 to 85 °C |
| Storage temperature | -55 to 125 °C |
| Soldering temperature (10 s) | 260 °C |
| UL certification | UL1577 |
| Switching speed (tpHL, tpLH) | 400 ns (max) |
The device is rated for a minimum isolation voltage of 2500 Vrms.
The recommended supply voltage is between 4.5 V and 20 V.
The maximum switching speed (tpHL, tpLH) is 400 ns.
It operates from –40 °C to +85 °C.