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사양
| 속성 | 가치 |
| Manufacturer | TOSHIBA |
| Package | SO-4-2.6mm |
개요
Description
The TLP291GB is a photocoupler (optoisolator) from Toshiba, designed for signal isolation in electronic circuits. It features a GaAs infrared LED paired with a phototransistor, providing electrical isolation between input and output.
### Key Features:
- Isolation Voltage: 3,750 Vrms (min)
- Current Transfer Ratio (CTR): 50% (min at 5mA input)
- High-Speed Response: Turn-on/off time ~4μs
- Compact Package: SOP-4 (surface-mount)
- Low Power Consumption
### Applications:
- Industrial controls
- PLCs, inverters
- Power supply feedback
- Digital signal isolation
The TLP291GB is RoHS-compliant and ideal for noise-sensitive or high-voltage environments. Its small footprint and reliability make it a popular choice for modern electronics.
### Key Features:
- Isolation Voltage: 3,750 Vrms (min)
- Current Transfer Ratio (CTR): 50% (min at 5mA input)
- High-Speed Response: Turn-on/off time ~4μs
- Compact Package: SOP-4 (surface-mount)
- Low Power Consumption
### Applications:
- Industrial controls
- PLCs, inverters
- Power supply feedback
- Digital signal isolation
The TLP291GB is RoHS-compliant and ideal for noise-sensitive or high-voltage environments. Its small footprint and reliability make it a popular choice for modern electronics.
Equivalent
Equivalent products to the TLP291GB (Toshiba) optocoupler include:
- PC817 (Sharp)
- LTV-817 (Lite-On)
- EL817 (Everlight)
- SFH618A (Vishay)
- CNY17 (Vishay)
These are similar 4-pin DIP optocouplers with comparable CTR (Current Transfer Ratio) and isolation voltage. Verify datasheets for exact specs.
- PC817 (Sharp)
- LTV-817 (Lite-On)
- EL817 (Everlight)
- SFH618A (Vishay)
- CNY17 (Vishay)
These are similar 4-pin DIP optocouplers with comparable CTR (Current Transfer Ratio) and isolation voltage. Verify datasheets for exact specs.
Features
The TLP291GB is a photocoupler (optoisolator) with the following key features:
- High Isolation Voltage: 3750 Vrms (min) for robust electrical isolation.
- Low Input Current: 5 mA (max) for efficient operation.
- High Current Transfer Ratio (CTR): 50% (min) at 5 mA input.
- Compact Package: 4-pin SO6 (small outline) for space-saving designs.
- High-Speed Response: Turn-on/off time of 3 μs (max).
- Wide Operating Temperature: -40°C to +100°C for industrial use.
- Reliable Performance: Long-term stability and durability.
Ideal for signal isolation in industrial, automotive, and communication systems.
- High Isolation Voltage: 3750 Vrms (min) for robust electrical isolation.
- Low Input Current: 5 mA (max) for efficient operation.
- High Current Transfer Ratio (CTR): 50% (min) at 5 mA input.
- Compact Package: 4-pin SO6 (small outline) for space-saving designs.
- High-Speed Response: Turn-on/off time of 3 μs (max).
- Wide Operating Temperature: -40°C to +100°C for industrial use.
- Reliable Performance: Long-term stability and durability.
Ideal for signal isolation in industrial, automotive, and communication systems.
Pinout
The TLP291GB is a 4-pin photocoupler (optoisolator) with the following functions:
1. Pin 1 (Anode) – LED anode input.
2. Pin 2 (Cathode) – LED cathode input.
3. Pin 3 (Emitter) – Phototransistor emitter (output side).
4. Pin 4 (Collector) – Phototransistor collector (output side).
It provides electrical isolation (up to 3750 Vrms) and transfers signals via an infrared LED and phototransistor. Common applications include signal isolation in industrial controls, PLCs, and power supplies.
Key features:
- High isolation voltage
- Low power consumption
- Compact SO4 package
1. Pin 1 (Anode) – LED anode input.
2. Pin 2 (Cathode) – LED cathode input.
3. Pin 3 (Emitter) – Phototransistor emitter (output side).
4. Pin 4 (Collector) – Phototransistor collector (output side).
It provides electrical isolation (up to 3750 Vrms) and transfers signals via an infrared LED and phototransistor. Common applications include signal isolation in industrial controls, PLCs, and power supplies.
Key features:
- High isolation voltage
- Low power consumption
- Compact SO4 package
