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FOD2742AR2
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Product Detailed Parameters
- Description：OPTOISO 2.5KV 1CH TRANS 8-SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR)
- Number of Channels：1
- Voltage - Isolation：2500Vrms
- Current Transfer Ratio (Min)：100% @ 10mA
- Current Transfer Ratio (Max)：200% @ 10mA
- 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)：1.2V
- Current - DC Forward (If) (Max)：-
- Vce Saturation (Max)：400mV
- Operating Temperature：-25°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
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Overview
The FOD2742AR2 is an optically isolated amplifier manufactured by onsemi, housed in an 8-SOIC package. It integrates a precision programmable shunt reference with a photovoltaic output optocoupler. Key electrical parameters include a maximum collector-emitter voltage of 70 V and a maximum collector current of 50 mA. The device offers an isolation voltage of 2500 Vrms and operates within a temperature range of -25°C to +85°C. The forward voltage is specified at 1.5 V, with a power dissipation of 145 mW.
Feature Summary
- Integrates a precision programmable shunt reference with an optocoupler for compact error amplifier designs
- Provides galvanic isolation between input and output circuits via photovoltaic transmission
- Utilizes a surface-mount SOIC-8 package for automated assembly compatibility
Applications
- Switch-mode power supply feedback loops
- Isolated voltage regulation circuits
- Industrial control system signal conditioning
Procurement Notes
Verify the specific suffix 'R2' against the manufacturer's latest datasheet to confirm packaging configuration and tape-and-reel specifications. Confirm RoHS compliance status and lifecycle stage, as availability may vary by region. Ensure the ordering part number matches the required lead time and manufacturing date codes for production schedules.
Selection Notes
Select this component when a combined reference and isolation solution is required to reduce board space. The photovoltaic output type necessitates external biasing or specific load configurations compared to transistor outputs. Evaluate thermal management requirements given the 145 mW power dissipation limit in the SOIC-8 package.
Part Context
This part belongs to the FOD2742 family of optically isolated amplifiers from onsemi. The family includes variants such as FOD2742A, FOD2742B, and FOD2742C, which share the core architecture but may differ in performance characteristics or packaging options. The FOD2742 series is designed to simplify the design of isolated feedback paths in power electronics.
Replacement Considerations
Direct substitutes within the same family include FOD2742A, FOD2742B, and FOD2742C. Verify pinout compatibility and electrical parameter equivalence before substitution. Alternative manufacturers may offer similar opto-amplifiers, but functional replacement requires careful validation of isolation ratings and reference accuracy.
