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FOD2743BTV
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Product Detailed Parameters
- Description：OPTOISOLTR 5KV 1CH TRANS 8-MDIP
- Series：-
- Mfr：onsemi
- Package：Tube
- Number of Channels：1
- Voltage - Isolation：5000Vrms
- Current Transfer Ratio (Min)：50% @ 1mA
- Current Transfer Ratio (Max)：100% @ 1mA
- Turn On / Turn Off Time (Typ)：-
- Rise / Fall Time (Typ)：-
- Input Type：DC
- Output Type：Transistor
- Voltage - Output (Max)：70V
- Current - Output / Channel：50mA
- Voltage - Forward (Vf) (Typ)：1.07V
- Current - DC Forward (If) (Max)：-
- Vce Saturation (Max)：400mV
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.400", 10.16mm)
- Supplier Device Package：8-MDIP
- Grade：-
- Qualification：-
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Overview
The FOD2743BTV is a transistor output optocoupler from onsemi, designed as an error amplifier coupler. It features a single channel with phototransistor output and operates within a temperature range of -40°C to +85°C. Key electrical parameters include a maximum collector-emitter voltage of 70 V, a forward current of 20 mA, and a forward voltage of 1.2 V. The device provides 5000 Vrms insulation voltage and has a current transfer ratio ranging from 50% to 100%. It is housed in an 8-pin PDIP package.
Feature Summary
- Integrates precision reference and error amplification for feedback control applications
- Provides high isolation voltage for safety-critical circuit separation
- Utilizes phototransistor output for signal transmission across isolation barrier
Applications
- Switching power supply feedback loops
- Error amplifier circuits in isolated converters
- Voltage regulation systems requiring galvanic isolation
Procurement Notes
Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance details via official datasheets. Check lead times carefully as production may be limited. Ensure packaging matches DIP-8 specifications. Validate part number suffixes against manufacturer documentation before ordering.
Selection Notes
Select this component when precise error amplification and high isolation are required in power electronics. Consider the 5000 Vrms rating for safety standards compliance. Evaluate the 50-100% CTR range for loop stability requirements. Ensure the PDIP-8 package fits the PCB layout constraints. Verify operating temperature range meets environmental conditions.
Part Context
This device belongs to the FOD2743B series of optically isolated amplifiers. It combines optical coupling with internal error amplification functions. The series is designed for applications needing accurate signal transmission across isolation barriers. It serves as a specialized solution for feedback control in isolated power conversion systems.
Replacement Considerations
Public confirmed substitute part numbers: FOD2743BS (surface mount variant). Verify pin compatibility and thermal performance differences between DIP and SMD packages. Check if alternative manufacturers offer equivalent error amplifier optocouplers with similar isolation ratings.
