1 Features

• Drop-in replacement and pin-to-pin upgrade to

industry-standard photorelays

• Single-channel, diode-emulator input

• Single-pole, normally-open, symmetrical 80V

output switch

• Primary-side current controlled switch, no

additional isolated high voltage supply required for

80V switching

• Ultra-low off-state leakage at VOFF = 70V

– < 250nA at operating temperature of 25°C

– < 1μA across operating temperature of –55°C

to 125°C

• Fast Response time: 10μs (typical) at IF = 5mA,

VCC = 20V, RL = 200Ω, CL = 50pF

• Ultra-low input trigger current of 800μA (at 25°C)

• Robust isolation barrier:

– Isolation rating: up to 3750VRMS

– Working voltage: 500VRMS, 707VPK

– Surge capability: up to 10kV

• Supports Industrial Temperature Range: –55°C to

125°C

• Small SO-4 package

• 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

• Factory automation and control

• Building automation

• Appliances

• Test and Measurement

3 Description

The ISOM8610 is an 80V single-pole, normallyopen

switch with an opto-emulator input. The optoemulator

inputs control the back-to-back MOSFETs

without any power supply required on the secondary

side. The devices are pin-compatible and dropin

replaceable for many traditional optocouplers,

allowing enhancement to industry-standard packages

with no PCB redesign.

The ISOM8610 opto-emulator switch offers significant

reliability and performance advantages compared

to optocouplers, like wider temperature ranges

and tight process controls resulting in small partto-

part variations. Since there is no aging effect

to compensate for, the emulated diode-input stage

consumes less power than optocouplers that have

LED aging and require higher bias currents over

the device lifetime. ISOM8610 switch output can

be controlled by just 0.8mA current through anode/

cathode pins over the lifetime of the device, enabling

system power savings.

The ISOM8610 is offered in a small SO-4 package,

supporting a 3.75kVRMS isolation rating. The high

performance and reliability of the device enable

the devices use in applications like Building

automation, Factory automation, Semiconductor

test, I/O modules in industrial controllers, factory

automation applications, and more spaces.