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Product Detailed Parameters
- Description：TRANSISTOR OUTPUT OPTOCOUPLER
- Series：*
- Mfr：Texas Instruments
- Package：Bulk
- Number of Channels：-
- Voltage - Isolation：-
- Current Transfer Ratio (Min)：-
- Current Transfer Ratio (Max)：-
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：-
- Input Type：-
- Output Type：-
- Voltage - Output (Max)：-
- Current - Output / Channel：-
- Voltage - Forward (Vf) (Typ)：-
- Current - DC Forward (If) (Max)：-
- Vce Saturation (Max)：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The TIL118-1 is a photovoltaic output optocoupler manufactured by Texas Instruments. It consists of an aluminum gallium arsenide (AlGaAs) infrared LED coupled to a silicon photovoltaic detector. The device provides electrical isolation between input and output circuits without requiring external bias voltage on the output side, as the photovoltaic cell generates its own voltage when illuminated.
Feature Summary
- Photovoltaic output architecture eliminates the need for external power supply at the output stage
- High isolation voltage capability suitable for sensitive signal transmission
- Low input current requirement for efficient driving
Applications
- Battery-powered equipment isolation
- Medical instrumentation signal isolation
- Data communication interface isolation
Procurement Notes
Verify the specific suffix '-1' indicates the tape and reel packaging variant if required for automated assembly. Confirm the manufacturer source is Texas Instruments or an authorized distributor to ensure component authenticity and traceability. Check for RoHS compliance status in the official datasheet before procurement.
Selection Notes
Select this component when zero-bias output operation is necessary to simplify circuit design and reduce power consumption. Consider the low input current requirements and high isolation voltage ratings compared to transistor-output optocouplers. Ensure the package type matches the PCB layout constraints.
Part Context
The TIL118 series belongs to Texas Instruments' family of photovoltaic optocouplers designed for high-isolation applications. These devices are commonly used where galvanic isolation is critical, such as in medical devices and industrial control systems, offering reliable signal transfer without direct electrical connection.
Replacement Considerations
Check for equivalent photovoltaic optocouplers from other manufacturers with similar isolation voltage and CTR specifications. Verify pinout compatibility and package dimensions before substitution.
