FOD2743CSDV

$0.35

Description：OPTOISOLATOR 5KV 1CH TRANS 8-SMD
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk

SKU:0ff829923643 Category: Transistor, Photovoltaic Output Optoisolators Brand: Fairchild Semiconductor

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Product introduction

Product Detailed Parameters

Description：OPTOISOLATOR 5KV 1CH TRANS 8-SMD
Series：-
Mfr：Fairchild Semiconductor
Package：Bulk
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：Surface Mount
Package / Case：8-SMD, Gull Wing
Supplier Device Package：8-SMD
Grade：-
Qualification：-

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FOD2743CSDV

Overview

The FOD2743CSDV is a single-channel optically isolated amplifier featuring an error amplifier and transistor output. It provides 5000 Vrms insulation voltage for high-voltage isolation. The device operates with a forward current of 20 mA and a forward voltage of 1.2 V. It supports a collector-emitter voltage of 70 V and a maximum collector current of 50 mA. The current transfer ratio ranges from 50% to 100%. Operating temperatures span from -40°C to +85°C. The component is housed in an 8-SMD surface-mount package.

Feature Summary

Integrates an error amplifier with a phototransistor output for precise signal coupling
Provides robust electrical isolation rated at 5000 Vrms between input and output circuits
Designed for linear applications requiring high common-mode rejection and stability

Applications

Switching power supply feedback loops
Linear optocoupler compensation circuits
Industrial control systems requiring galvanic isolation

Procurement Notes

Verify the manufacturer origin, as this part was originally produced by Fairchild Semiconductor before its acquisition by onsemi. Confirm the specific suffix 'CSDV' matches the required tape-and-reel packaging format. Check for RoHS compliance status and ensure the component lifecycle status aligns with long-term availability requirements. Validate pinout compatibility if replacing existing designs.

Selection Notes

Select this component when a combined error amplifier and isolation stage is needed in a compact surface-mount form factor. Ensure the design accommodates the 5000 Vrms isolation rating and the 70 V collector-emitter voltage limit. Verify that the operating temperature range of -40°C to +85°C meets environmental constraints. Consider the 50% to 100% current transfer ratio for gain calculations in the feedback network.

Part Context

This device belongs to the FOD2743 family of optically isolated amplifiers. It combines an infrared LED emitter, an integrated error amplifier, and a phototransistor detector. The series is designed for applications demanding high linearity and isolation performance. The SMD package facilitates automated assembly and space-constrained PCB layouts.