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FOD053L
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Product Detailed Parameters
- Description：OPTOISO 2.5KV 2CH TRANS 8-SOIC
- Series：-
- Mfr：Fairchild Semiconductor
- Package：Bulk
- Number of Channels：2
- Voltage - Isolation：2500Vrms
- Current Transfer Ratio (Min)：15% @ 16mA
- Current Transfer Ratio (Max)：50% @ 16mA
- Turn On / Turn Off Time (Typ)：1µs, 1µs (Max)
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：7V
- Current - Output / Channel：8mA
- Voltage - Forward (Vf) (Typ)：1.45V
- Current - DC Forward (If) (Max)：25 mA
- Vce Saturation (Max)：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The FOD053L is a high-speed transistor output optocoupler manufactured by Fairchild Semiconductor. It integrates an AlGaAs infrared LED optically coupled to a photodetector transistor, designed for LVTTL and LVCMOS 3.3V logic compatibility. The device provides electrical isolation with a rated voltage of 2500Vrms across one channel. It features a typical rise time of 1µs and fall time of 2µs, supporting fast signal transmission. The unit operates within a temperature range of -55°C to 100°C and is housed in a compact 8-SOIC surface-mount package.
Feature Summary
- High-speed switching capability suitable for rapid digital signal transmission
- Direct interface compatibility with LVTTL and LVCMOS 3.3V logic families
- Robust electrical isolation between input and output circuits
Applications
- Digital communication interfaces requiring galvanic isolation
- Signal coupling in microcontroller-based systems
- Isolation barriers in industrial control equipment
Procurement Notes
Verify the specific suffix (e.g., R1) against the datasheet to confirm reel packaging requirements if automated assembly is planned. Confirm RoHS3 compliance status as per the latest manufacturer documentation. Ensure the 8-SOIC footprint matches the PCB design constraints. Check for obsolescence notices from Fairchild or onsemi, as component availability may vary.
Selection Notes
Select this component when low propagation delay and direct 3.3V logic interfacing are required. The transistor output type is appropriate for driving subsequent logic gates or pull-up networks. Consider the 2500Vrms isolation rating for safety requirements. Evaluate thermal dissipation limits if operating near maximum junction temperatures.
Part Context
This part belongs to the FOD05xL series of high-speed optocouplers. It shares architectural similarities with the FOD250L and FOD050L, utilizing AlGaAs LED technology for improved speed compared to standard GaAs devices. The series is designed to replace older discrete isolation solutions in modern low-voltage digital applications.
Replacement Considerations
Compatible substitutes include the FOD250L and FOD050L from the same manufacturer family, which share similar pinouts and functional characteristics. Verify that alternative components maintain the required 3.3V logic compatibility and isolation voltage ratings before implementation.
