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 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

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 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.