Overview: Photocouplers GaAℓAs Infrared LED & Photo IC
TLP2748 TLP2748 1. Applications
• Intelligent Power Module Signal Isolation • Programmable Logic Controllers (PLCs) • High-Speed Digital Interfacing for Instrumentation and Control Devices
2. General
The Toshiba TLP2748 consists of high-output GaAℓAs light-emitting diode coupled with a high-gain, high-speed photo detector. It is housed in a thin SO6L package of 2.3 mm(max). The TLP2748 has guaranteed the isolation voltage 5 kVrms and compliant with international safety standards for reinforced insulation. This product can operate in power supply voltage 4.5 V to 30 V with the maximum operative temperature of 110 . Since TLP2748 has guaranteed 3 mA low supply current (ICCL/ICCH), and 1.6 mA low threshold input current (IFHL), it contributes to energy saving of devices. It can drive directly from a microcomputer for a low input current. The detector has a totem-pole output stage with current sourcing and sinking capabilities. The TLP2748 has an internal Faraday shield that provides a guaranteed common-mode transient immunity of ±30 kV/µs. The TLP2748 has an inverter output. A buffer output version, the TLP2745, is also available.
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