Overview
The TLP291(SE) is a transistor output optocoupler produced by Toshiba Semiconductor and Storage. This device is designed for reliable signal isolation in various applications, including industrial automation, medical equipment, automotive electronics, and telecommunications. It consists of a photo transistor optically coupled to a gallium arsenide infrared emitting diode and is housed in a small and thin SO4 package, making it suitable for high-density surface mounting applications.
Key Specifications
| Characteristic | Test Condition | Min | Typ. | Max | Unit |
|---|---|---|---|---|---|
| Current Transfer Ratio | IF = 5 mA, VCE = 5 V | 50% | - | 600% | % |
| Isolation Voltage | AC, 1 minute, in OIL | 3750 | - | - | Vrms |
| Collector-Emitter Voltage | VCE = 48 V | 80 | - | - | V |
| Operating Temperature | - | -55 | - | 110 | °C |
| Total Capacitance | VS = 0 V, f = 1 MHz | - | - | 0.8 | pF |
| Isolation Resistance | VS = 500 V, R.H. ≤ 60% | 1×10^12 | - | - | Ω |
| Package | - | - | - | SO4 (SOP-11) | - |
Key Features
- High isolation voltage of 3750 Vrms, ensuring reliable electrical isolation.
- Wide operating temperature range from -55°C to 110°C, making it suitable for various environmental conditions.
- Current transfer ratio (CTR) of 50% (min), providing consistent signal transfer.
- Low power consumption and high-speed switching performance.
- Surface mount package (SO4 or SOP-11) for easy integration into modern electronic designs.
- RoHS compatibility and UL recognition (UL1577, File No. E67349).
Applications
- Industrial automation: Used for isolating and controlling high voltage signals in industrial machinery.[li>Medical equipment: Utilized for signal isolation in medical devices to ensure patient safety.[li>Automotive electronics: Used for isolating signals in automotive control systems to prevent electrical interference.[li>Telecommunications: Employed for signal isolation in network equipment to prevent electrical noise.[li>Switching power supplies and programmable logic controllers (PLCs).[li>I/O interface boards.[li>Consumer electronics, security systems, gaming consoles, LED lighting, power management systems, and renewable energy systems.
Q & A
- What is the TLP291(SE) optocoupler used for? The TLP291(SE) is used for reliable signal isolation in applications such as industrial automation, medical equipment, automotive electronics, and telecommunications.[li>What is the isolation voltage of the TLP291(SE)? The isolation voltage is 3750 Vrms.[li>What is the operating temperature range of the TLP291(SE)? The operating temperature range is from -55°C to 110°C.[li>What is the current transfer ratio (CTR) of the TLP291(SE)? The CTR is 50% (min).[li>Is the TLP291(SE) RoHS compliant? Yes, the TLP291(SE) is RoHS compliant.[li>What package type does the TLP291(SE) come in? It comes in an SO4 or SOP-11 package.[li>What are some common applications of the TLP291(SE)? Common applications include industrial automation, medical equipment, automotive electronics, telecommunications, switching power supplies, and programmable logic controllers.[li>Is the TLP291(SE) UL recognized? Yes, it is UL recognized (UL1577, File No. E67349).[li>What is the total capacitance of the TLP291(SE)? The total capacitance is 0.8 pF (max) at VS = 0 V, f = 1 MHz.[li>How does the TLP291(SE) ensure high-speed switching performance? It ensures high-speed switching performance through its design and material, including a gallium arsenide infrared emitting diode and a photo transistor.
