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ISOM811x-Q1 Automotive Reinforced Single-Channel Opto-Emulator With Analog

Transistor Output

1 Features

•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 I

F

= 5mA, V

CE

= 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: V

CE

(max) = 80V

•Robust SiO

2

isolation barrier

–Isolation rating: Up to 5000V

RMS

–Working voltage: Up to 750V

RMS

, 1061V

PK

–Surge capability: Up to 10kV

PK

•Response time: 3μs (typical) at V

CE

= 10V, I

C

=

2mA, R

L

= 100Ω

•Functional Safety-Capable

–Documentation available to aid functional safety

system design: ISOM811x-Q1

•Section 6.6 (Planned)

–DIN EN IEC 60747-17 (VDE 0884-17)

conformity per VDE

–UL 1577 recognition, 5000V

RMS

–IEC 62368-1, IEC 61010-1 certifications

–CQC GB 4943.1 certification

2 Applications

•Switching power supply

•HEV/EV OBC & DC/DC converter

•Advanced driver assistance systems (ADAS)

•Body electronics & lighting

•Infotainment & cluster

•HEV/EV battery-management system (BMS)

3 Description

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 pitches,

supporting 3750V

RMS

and 5000V

RMS

isolation

ratings with 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.

Package Information

PART

NUMBER

PACKAGE

(1)

PACKAGE

SIZE

(2)

BODY SIZE

(NOM)

ISOM811x-

Q1

SO-4 (DFG)7.0mm × 3.5mm4.8mm × 3.5mm

SO-4 (DFH)7.0mm × 2.7mm4.8mm × 2.7mm

SO-4 (DFS)10.0mm × 3.6mm7.5mm × 3.6mm

(1)For more information, see Section 12.

(2)The package size (length × width) is a nominal value and

includes pins, where applicable.

4

1

23

SiO

2

ISOM811(0-3)-Q1

1

2

4

3

SiO

2

ISOM811(5-8)-Q1

Simplified Schematic

ISOM8110-Q1, ISOM8111-Q1, ISOM8112-Q1, ISOM8113-Q1

ISOM8115-Q1, ISOM8116-Q1, ISOM8117-Q1, ISOM8118-Q1

SLLSFU6E – APRIL 2024 – REVISED SEPTEMBER 2025

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

Product specificaties