Broadcom Optocouplers
for Safe Isolation
Why Broadcom?
With roots tracing back more than 50 years to Hewlett-Packard and Avago Technologies, Broadcom is a leading provider of galvanic isolation products for industrial and automotive markets leveraging its field-proven, time-tested optocoupler technology. Broadcom’s opto-isolation solutions provide unmatched high voltage protection and signal isolation that meet or exceed international safety standards.
Broadcom optocouplers, including digital optocouplers, isolation amplifiers and gate drive optocouplers, are used in a broad array of applications ranging from power supply and motor control circuits to data communication and digital logic interfaces.
Product Range
Smart Gate Drivers
High reliability products ideal for driving power IGBTs and MOSFETs used in motor control inverter applications.
Sigma-Delta Modulators
Using advanced Sigma-Delta Modulator technology, the current sensor and voltage sensor product family provides accurate measurements of phase current and bus voltage in motor drives, power inverters and voltage signals in general isolation circuits.
High Voltage Insulation ACNT Family
Learn about Broadcom's new ACNT family that offers better insulation for higher voltages – with up to 15mm creepage and clearance.
Automotive Optocouplers
Automotive-grade optocoupler gate drives, IPM interfaces and isolation amplifiers for automotive applications in electric vehicles.
Resources
- White Paper: Achieve Fast and Accurate Over-Current Detection Using Optically Coupled Sigma-Delta Modulators
- White Paper: Building Safe and Reliable Electrical Systems with Optocouplers
- White Paper: Calculate Reliable LED Lifetime Performance in Optocouplers
- White Paper: Ensure Safe System Operation with Certified Isolator Devices
- White Paper: Gate Drive Optocouplers for GaN Power Devices
- White Paper:Gate Drive Optocoupler Provides Robust Insulation in IGBT Destructive Tests
- White Paper:Improve Lithium-Ion Battery-Stack Safety in Electric Vehicles by Leveraging Optocouplers to Isolate High Voltages
- White Paper: Reducing EMI from an Internally Clocked Sigma-Delta Modulator Through Spread Spectrum
- White Paper: Safety Considerations When Using Optocouplers and Alternative Isolators for Providing Protection Against Electrical Hazards
- White Paper: ACPL-W346 and ACPL-339J SiC MOSFET Gate Drive Optocouplers
- Technical note: ACNT Family - 15-mm Wide ACNT Optocouplers for High Voltage Applications
SMART GATE DRIVERS
Broadcom gate drive optocouplers come in wide range of output current from 0.4A to 5A. These optically-isolated devices are optimized for driving IGBT, Power and SiC/GaN MOSFET, exhibiting rail-to-rail output, fast gate switching speed, high CMR and reinforced insulation. The smart gate drivers are with integrated protection features and DC-DC controller.
Manufacturer part # | Description | Product image | Shop now |
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ACPL-336J | 2.5A Gate Drive Optocoupler with Integrated LED Driver, Active Miller Clamp, DESAT Detection, and Fault & UVLO Status Feedback | ![]() | Shop now |
ACPL-337J | 4.0A Gate Drive Optocoupler with Integrated LED Driver, Active Miller Clamp, DESAT Detection, and Fault & UVLO Status Feedback | ![]() | Shop now |
ACPL-339J | Dual-Output Gate Drive Optocoupler Interface with Integrated DESAT Detection, FAULT and UVLO Status Feedback | ![]() | Shop now |
ACPL-302J | 2.5A Gate Drive Optocoupler with Integrated Flyback Controller for Isolated DC-DC Converter | ![]() | Shop now |
ACPL-352J | 5A Gate Drive Optocoupler with Integrated Over Current Sensing, FAULT, GATE, and UVLO Status Feedback | ![]() | Shop now |
ACPL-350J | 3A Gate Drive Optocoupler with Over Current Sensing and FAULT Feedback | ![]() | Shop now |
ACPL-351J | 5A Gate Drive Optocoupler with Over Current Sensing and FAULT Feedback | ![]() | Shop now |
SIGMA-DELTA MODULATORS
These miniature isolation amplifiers for current sensing and voltage sensing in power converters. Using advanced Sigma-Delta Modulator technology, the current sensor and voltage sensor product family provides accurate measurements of phase current and bus voltage in motor drives, power inverters and voltage signals in general isolation circuits. With built-in safety insulation and high CMR (common mode rejection) performance, these miniature isolation amplifiers offers a competitive price/performance alternative to the traditional hall effect current sensor.
HIGH VOLTAGE INSULATION ACNT FAMILY

Manufacturer part # | Description | Product image | Shop now |
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ACNT-H343 | 5-Amp Gate Drive Optocoupler in 15-mm SSO8 Package with 100-kV/µs Noise Immunity | ![]() | Shop now |
AUTOMOTIVE OPTOCOUPLERS
For the automotive industry, Broadcom offers a wide range of digital, IPM interface, gate drive optocouplers and isolation amplifiers.
The first supplier to introduce 125°C plastic optocouplers for automotive applications, Broadcom automotive R2Coupler™ products are AEC-Q100 qualified with applications in:
- Automotive system CANBus interface isolation
- Motor inverter drives
- AC-DC and DC-DC converters for battery chargers
- Battery/inverter voltage monitoring
- Battery management systems