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ISOM8110

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DC input, transistor output, single-channel, opto-emulator with 100% to 155% CTR

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Data sheet

ISOM8110

ACTIVE
Data sheet Order now

Product details

Rating Catalog Product type Open-collector Withstand isolation voltage (VISO) (Vrms) 3750 Operating temperature range (°C) -55 to 125 Creepage (min) (mm) 5 Clearance (min) (mm) 5
Rating Catalog Product type Open-collector Withstand isolation voltage (VISO) (Vrms) 3750 Operating temperature range (°C) -55 to 125 Creepage (min) (mm) 5 Clearance (min) (mm) 5
SOIC (DFG) 4 24.57 mm² 3.51 x 7
  • Drop-in replacement and pin-to-pin upgrade to industry-standard phototransistor optocouplers
  • 1-channel LED-emulator input
  • Current transfer ratio (CTR) at I F = 5 mA, V CE = 5 V:
    • ISOM8110, ISOM8115: 100% to 155%
    • ISOM8111, ISOM8116: 150% to 230%
    • ISOM8112, ISOM8117: 255% to 380%
    • ISOM8113, ISOM8118: 375% to 560%
  • High collector-emitter voltage: V CE (max) = 80 V
  • Robust isolation barrier
    • Isolation rating: 3750-V RMS
    • Working voltage: 500-V RMS, 707-V PK
    • Surge capability: up to 10-kV
  • Temperature range: –55°C to +125°C
  • Response time: 3 µs (typical) at V CE = 10 V, I C = 2 mA, R L = 100 Ω
  • Safety-related certifications planned:
    • UL 1577 recognition, 3750-V RMS isolation
    • DIN EN IEC 60747-17 (VDE 0884-17) conformity per VDE
    • IEC 62368-1, IEC 61010-1 certifications
    • CQC GB 4943.1 certification
  • Drop-in replacement and pin-to-pin upgrade to industry-standard phototransistor optocouplers
  • 1-channel LED-emulator input
  • Current transfer ratio (CTR) at I F = 5 mA, V CE = 5 V:
    • ISOM8110, ISOM8115: 100% to 155%
    • ISOM8111, ISOM8116: 150% to 230%
    • ISOM8112, ISOM8117: 255% to 380%
    • ISOM8113, ISOM8118: 375% to 560%
  • High collector-emitter voltage: V CE (max) = 80 V
  • Robust isolation barrier
    • Isolation rating: 3750-V RMS
    • Working voltage: 500-V RMS, 707-V PK
    • Surge capability: up to 10-kV
  • Temperature range: –55°C to +125°C
  • Response time: 3 µs (typical) at V CE = 10 V, I C = 2 mA, R L = 100 Ω
  • Safety-related certifications planned:
    • UL 1577 recognition, 3750-V RMS isolation
    • DIN EN IEC 60747-17 (VDE 0884-17) conformity per VDE
    • IEC 62368-1, IEC 61010-1 certifications
    • CQC GB 4943.1 certification

The ISOM811x devices are single-channel optocoupler-emulators with LED-emulator input and transistor output. The devices are pin-compatible and drop-in replacements for many traditional optocouplers, allowing enhancement to existing systems with no PCB redesign.

ISOM811x opto-emulators offer significant reliability and performance advantages compared to optocouplers, including high bandwidth, low turn-off delay, low power consumption, wider temperature ranges, and tight CTR and process controls resulting in small part-to-part skew. Since there is no aging effect or temperature variation to compensate for, the emulated LED input stage consumes less power than optocouplers.

ISOM811x devices are offered in small SOIC-4 packages with 2.54-mm and 1.27-mm pin pitchs, supporting a 3.75-kV RMS isolation rating and DC (ISOM811[0-3]) and bi-directional DC (ISOM811[5-8]) input options. The high performance and reliability of ISOM811x enables these devices to be used in power supply feedback design, motor drives, I/O modules in industrial controllers, factory automation applications, and more.

The ISOM811x devices are single-channel optocoupler-emulators with LED-emulator input and transistor output. The devices are pin-compatible and drop-in replacements for many traditional optocouplers, allowing enhancement to existing systems with no PCB redesign.

ISOM811x opto-emulators offer significant reliability and performance advantages compared to optocouplers, including high bandwidth, low turn-off delay, low power consumption, wider temperature ranges, and tight CTR and process controls resulting in small part-to-part skew. Since there is no aging effect or temperature variation to compensate for, the emulated LED input stage consumes less power than optocouplers.

ISOM811x devices are offered in small SOIC-4 packages with 2.54-mm and 1.27-mm pin pitchs, supporting a 3.75-kV RMS isolation rating and DC (ISOM811[0-3]) and bi-directional DC (ISOM811[5-8]) input options. The high performance and reliability of ISOM811x enables these devices to be used in power supply feedback design, motor drives, I/O modules in industrial controllers, factory automation applications, and more.
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Technical documentation

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Type Title Date
* Data sheet ISOM811x3.75-kVRMS, Single-Channel Opto-Emulator with Analog Transistor Output datasheet (Rev. A) PDF | HTML 03 Oct 2023
Technical article Opto-emulators explained: Why you should upgrade your optocoupler technology PDF | HTML 05 Jan 2024
Application brief Demystifying Isolation Certification Standards: Optocouplers vs Opto-emulators PDF | HTML 19 Oct 2023
Application brief Designing CC-CV Feedback Circuits With the TL103WB PDF | HTML 21 Sep 2023
Product overview Isolated Secondary-Side Overvoltage Protection Using Opto-emulators PDF | HTML 18 Sep 2023
Product overview Isolating Feedback Signals in Power Supplies PDF | HTML 18 Sep 2023
Product overview Replacing Optocouplers With Opto-Emulators PDF | HTML 18 Sep 2023
Application note Introduction to Opto-Emulators PDF | HTML 13 Sep 2023

Design & development

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Evaluation board

ISOM8110DFGEVM — ISOM8110 evaluation module for single-channel opto-emulator with analog transistor output

ISOM8110DFGEVM is an evaluation module used to evaluate ISOM8110, a single-channel opto-emulator with analog transistor output in a 4-pin DFG SOIC package. The EVM lets you evaluate device performance for fast development and analysis of an isolated system. 

User guide: PDF | HTML
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Simulation model

ISOM8110 PSpice Reference Design Model

SLLM501.ZIP (1 KB) - PSpice Model
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Reference designs

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Design guide: PDF
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SOIC (DFG) 4 View options
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