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ISOM8112-Q1

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Automotive, DC-input transistor-output single-channel opto-emulator with 255% to 380% CTR

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Data sheet

ISOM8112-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Product type Analog transistor output Input type DC Output type Analog transistor Withstand isolation voltage (VISO) (Vrms) 3750 Number of channels 1 Current transfer ratio (CTR) (min) (%) 255 Current transfer ratio (CTR) (max) (%) 380 Forward voltage (typ) (V) 1.2 Forward current (IF) (max) (mA) 20 Forward current (IF) (min) (µA) 700 Data rate (max) (Mbps) 0.1 Operating temperature range (°C) -40 to 125 Turnon time (enable) (µs) 0.48 Turnoff time (disable) (µs) 3.1 Creepage (min) (mm) 5 Clearance (min) (mm) 5
Rating Automotive Product type Analog transistor output Input type DC Output type Analog transistor Withstand isolation voltage (VISO) (Vrms) 3750 Number of channels 1 Current transfer ratio (CTR) (min) (%) 255 Current transfer ratio (CTR) (max) (%) 380 Forward voltage (typ) (V) 1.2 Forward current (IF) (max) (mA) 20 Forward current (IF) (min) (µA) 700 Data rate (max) (Mbps) 0.1 Operating temperature range (°C) -40 to 125 Turnon time (enable) (µs) 0.48 Turnoff time (disable) (µs) 3.1 Creepage (min) (mm) 5 Clearance (min) (mm) 5
SOIC (DFG) 4 24.57 mm² 3.51 x 7 SOIC (DFH) 4 18.9 mm² 2.7 x 7
  • Footprint compatible, pin-to-pin upgrade to industry-standard phototransistor optocouplers
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: -40°C to 125°C ambient operating temperature range
  • 1-channel LED-emulator input
  • Current transfer ratio (CTR) at IF = 5mA, VCE = 5V:
    • ISOM8110-Q1, ISOM8115-Q1: 100% to 155%
    • ISOM8111-Q1, ISOM8116-Q1: 150% to 230%
    • ISOM8112-Q1, ISOM8117-Q1: 255% to 380%
    • ISOM8113-Q1, ISOM8118-Q1: 375% to 560%
  • High collector-emitter voltage: VCE (max) = 80V
  • Robust SiO2 isolation barrier
    • Isolation rating: 3750VRMS
    • Working voltage: 500VRMS, 707VPK
    • Surge capability: up to 10kV
  • Response time: 3µs (typical) at VCE = 10V, IC = 2mA, RL = 100Ω
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design: ISOM811x-Q1
  • Safety-related certifications planned:
    • UL 1577 recognition, 3750VRMS isolation
    • DIN EN IEC 60747-17 (VDE 0884-17) conformity per VDE
    • IEC 62368-1, IEC 61010-1 certifications
    • CQC GB 4943.1 certification
  • Footprint compatible, pin-to-pin upgrade to industry-standard phototransistor optocouplers
  • AEC-Q100 qualified with the following results:
    • Device temperature Grade 1: -40°C to 125°C ambient operating temperature range
  • 1-channel LED-emulator input
  • Current transfer ratio (CTR) at IF = 5mA, VCE = 5V:
    • ISOM8110-Q1, ISOM8115-Q1: 100% to 155%
    • ISOM8111-Q1, ISOM8116-Q1: 150% to 230%
    • ISOM8112-Q1, ISOM8117-Q1: 255% to 380%
    • ISOM8113-Q1, ISOM8118-Q1: 375% to 560%
  • High collector-emitter voltage: VCE (max) = 80V
  • Robust SiO2 isolation barrier
    • Isolation rating: 3750VRMS
    • Working voltage: 500VRMS, 707VPK
    • Surge capability: up to 10kV
  • Response time: 3µs (typical) at VCE = 10V, IC = 2mA, RL = 100Ω
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design: ISOM811x-Q1
  • Safety-related certifications planned:
    • UL 1577 recognition, 3750VRMS 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-Q1 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-Q1 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-Q1 devices are offered in small SOIC-4 packages with 2.54mm and 1.27mm pin pitchs, supporting a 3.75kVRMS isolation rating and DC (ISOM811[0-3]-Q1) and bidirectional DC (ISOM811[5-8]-Q1) input options. The high performance and reliability of ISOM811x-Q1 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-Q1 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-Q1 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-Q1 devices are offered in small SOIC-4 packages with 2.54mm and 1.27mm pin pitchs, supporting a 3.75kVRMS isolation rating and DC (ISOM811[0-3]-Q1) and bidirectional DC (ISOM811[5-8]-Q1) input options. The high performance and reliability of ISOM811x-Q1 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 ISOM811x-Q1 3.75kVRMS , Automotive Single-Channel Opto-Emulator With Analog Transistor Output datasheet (Rev. C) PDF | HTML 25 Oct 2024
Functional safety information ISOM811x-Q1 Functional Safety, FIT Rate, FMD and Pin FMA (Rev. A) PDF | HTML 13 Dec 2024
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
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

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

ISOM-EVM — Universal opto-emulator evaluation module

The ISOM-EVM supports evaluation of TI opto-emulators in 5-pin DFF, 4-pin DFG, 4-pin DFH and 4-pin DFS SOIC packages. The evaluation module (EVM) can be reconfigured for evaluation of different opto-emulators, different input signal or other applications by changing the EVM configuration and (...)
User guide: PDF | HTML
Not available on TI.com
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
Not available on TI.com
Simulation model

ISOM8110 PSpice Reference Design Model

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

PMP23470 — 750 kHz flyback converter for 48V systems reference design

This reference design is an isolated high-frequency (750kHz) flyback converter with a 48V input and a 24V/0.7A output. A LM51561 provides control for the flyback converter and an ISOM8110 opto-emulator is used for feedback isolation.
Test report: PDF
Reference designs

TIDA-010271 — Stackable battery management unit reference design for energy storage systems

This is a full cell-temperature sensing and high cell voltage accuracy Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery pack (32s) reference design. The design monitors each cell voltage, cell temperature and protects the battery pack to secure safe use. This design uses onboard and (...)
Design guide: PDF
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SOIC (DFH) 4 Ultra Librarian
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