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ISOM8110
  • ISOM8110
  • ISOM8110
  • ISOM8110
  • ISOM8110
  • ISOM8110

ISOM8110

ACTIVE

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

Texas Instruments ISOM8110 Product Info

1 April 2026 3

Parameters

Rating

Catalog

Product type

Analog transistor output

Input type

DC

Output type

Analog transistor

Withstand isolation voltage (VISO) (Vrms)

3750, 5000

Number of channels

1

Current transfer ratio (CTR) (min) (%)

100

Current transfer ratio (CTR) (max) (%)

155

Forward voltage (typ) (V)

1.2

Forward current (IF) (max) (mA)

50

Forward current (IF) (min) (µA)

500, 500

Data rate (max) (Mbps)

0.1

Operating temperature range (°C)

-55 to 125

Turnon time (enable) (µs)

0.62, 0.62

Turnoff time (disable) (µs)

3.6, 3.6

Creepage (min) (mm)

5, 8

Clearance (min) (mm)

5, 8

Package

SOIC (DFG)-4-24.57 mm² 3.51 x 7

Features

  • Footprint compatible, pin-to-pin upgrade to industry-standard phototransistor optocouplers
  • 1-channel LED-emulator input
  • Current transfer ratio (CTR) at IF = 5mA, VCE = 5V:
    • ISOM8110, ISOM8115: 100% to 155%
    • ISOM8111, ISOM8116: 150% to 230%
    • ISOM8112, ISOM8117: 255% to 380%
    • ISOM8113, ISOM8118: 375% to 560%
  • High collector-emitter voltage: VCE (max) = 80V
  • Robust SiO2 isolation barrier
    • Isolation rating: Up to 5000VRMS
    • Working voltage: Up to 750VRMS, 1061VPK
    • Surge capability: Up to 10kVPK
  • Temperature range: -55°C to 125°C
  • Response time: 3µs (typical) at VCE = 10V, IC = 2mA, RL = 100Ω
  • (Planned)
    • DIN EN IEC 60747-17 (VDE 0884-17) conformity per VDE
    • UL 1577 recognition, 5000VRMS
    • IEC 62368-1, IEC 61010-1 certifications
    • CQC GB 4943.1 certification
  • Footprint compatible, pin-to-pin upgrade to industry-standard phototransistor optocouplers
  • 1-channel LED-emulator input
  • Current transfer ratio (CTR) at IF = 5mA, VCE = 5V:
    • ISOM8110, ISOM8115: 100% to 155%
    • ISOM8111, ISOM8116: 150% to 230%
    • ISOM8112, ISOM8117: 255% to 380%
    • ISOM8113, ISOM8118: 375% to 560%
  • High collector-emitter voltage: VCE (max) = 80V
  • Robust SiO2 isolation barrier
    • Isolation rating: Up to 5000VRMS
    • Working voltage: Up to 750VRMS, 1061VPK
    • Surge capability: Up to 10kVPK
  • Temperature range: -55°C to 125°C
  • Response time: 3µs (typical) at VCE = 10V, IC = 2mA, RL = 100Ω
  • (Planned)
    • DIN EN IEC 60747-17 (VDE 0884-17) conformity per VDE
    • UL 1577 recognition, 5000VRMS
    • IEC 62368-1, IEC 61010-1 certifications
    • CQC GB 4943.1 certification

Description

The ISOM811x devices are single-channel optocoupler-emulators with LED-emulator input and transistor output. The devices are footprint compatible and pin-to-pin upgrades 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, flat CTR, and tight 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 2.54mm and 1.27mm pin pitches, supporting 3750VRMS and 5000VRMS isolation ratings with DC (ISOM811[0-3]) and bidirectional 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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