ISOM8115DFGR

Transistor, Photovoltaic Output Optoisolators Overview

The ISOM8115DFGR is a single-channel AC-input transistor-output optocoupler from Texas Instruments, housed in an SOIC-4 surface-mount package. It features a phototransistor output with a collector-emitter voltage of 80 V and a maximum collector current of 50 mA. The device provides 3750 Vrms insulation voltage and operates within a temperature range of -55°C to +125°C. Key electrical parameters include a forward current of 50 mA, a forward voltage of 1.5 V, and a power dissipation of 290 mW. The current transfer ratio ranges from 55% to 195%, with typical rise and fall times of 3.2 µs and 4 µs respectively.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides functional isolation for AC-input applications using a transistor output configuration.

Transistor, Photovoltaic Output Optoisolators Applications

• AC mains monitoring circuits
• Industrial control systems requiring galvanic isolation
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix DFGR against the manufacturer's official datasheet to confirm the SOIC-4 package and reel packaging details. Ensure the component meets AEC-Q100 requirements if automotive qualification is necessary, as standard commercial variants may differ. Confirm moisture sensitivity levels and recommended soldering profiles prior to assembly to prevent damage during reflow processes.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when AC input detection or isolation is required with a phototransistor interface. Compare the 55% to 195% current transfer ratio against system gain requirements. Verify that the 3750 Vrms insulation rating satisfies safety standards for the intended application voltage. Consider the SOIC-4 footprint constraints and thermal dissipation capabilities relative to the 290 mW power limit.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISOM811x series of high-reliability optocouplers designed for robust industrial and automotive environments. The series offers various channel counts and input types, including DC and AC options. The ISOM8115 specifically targets AC signal transmission, distinguishing it from DC-input counterparts like the ISOM8110 or ISOM8111 within the same family.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct pin-compatible alternatives within the ISOM811x family, such as ISOM8115DFHR, noting any differences in packaging or humidity sensitivity. Verify equivalent performance metrics for current transfer ratio and insulation voltage before substituting.