TOSHIBA PHOTOCOUPLER IRED & PHOTO-IC TLP2404 IPM (Intelligent Power Module) Industrial Inverter Operate at high ambient temperatures up to 125°C The Toshiba TLP2404 consists of an infrared emitting diodes and integrated high gain, high-speed photodetectors. The TLP2404 is housed in the SO8 package. The output stage is an open collector type. The photodetector has an internal Faraday shield that provides a guaranteed common-mode transient immunity of ±15 kV/μs. TLP2404 guarantees minimum and maxi.