Isolation Solutions
Superior isolation that enhances system performance, flexibility and reliability, while reducing cost and size.
We’re experts in high voltage and superior isolation. With more than 300 million isolation channels in field service, our isolation portfolio is used by a wide range of customers and applications, including industrial automation, transportation systems, home entertainment electronics, and medical systems. Our products support isolation voltages up to 5 kV and include digital isolators, isolated gate drivers, isolated analog and ADC, industrial I/O, and isolated FET families.
| Digital Isolators | Isolated Gate Drivers | Isolated Analog and ADC | Industrial I/O | Isolated FET Drivers | |
| Common Applications | Communication buses | Power supplies, solar and motor inverters, on-board chargers | Load monitoring | Automation, programmable logic controllers | Relay Replacement |
| Number of channels | 1 to 6 | 1, 2 | 1,3 | 4, 8 | 1 |
| Configuration | Multi-channel | Single, dual independent or high-side/low-side | Single or multi-channel | Multi-channel | Single channel |
| Isolation ratings | 1.0, 2.5, 3.75 or 5.0 kVrms | 1.0, 2.5, 3.75 or 5.0 kVrms | 2.5 or 5.0 kVrms | 1.5 or 2.5 kVrms | 2.5 kVrms |
| Input type | Digital (CMOS) or LED emulator | Digital (CMOS) or LED emulator | Analog single ended or differential | Digital (CMOS) or LED emulator | Digital (CMOS) or LED emulator |
| Output type | Digital push-pull, Open drain | High current push-pull (Up to 4.0 A peak switching) | Analog or Digital (SPI, UART, I2C, Delta-Sigma bit stream) | Digital push-pull, High current open drain (0.7 A continuous) | Digital push-pull |
| SPI Control Interface | No | No | Yes | Yes | No |
| Package type | SOIC-8/16 NB, SOIC-16 WB, QSOP-16 | SOIC-8/16 NB, SSO-8, SOIC-14/16 WB, 5x5 LGA-14, 5x5 QFN-14 | SOIC-8 NB, SOIC-16 WB, PDIP-8 GW, SSO-8 | QSOP-20, DFN-32 | SOIC-8 NB |
| Options with single-side biasing | Yes | Yes | No | Yes | Yes |
| Input supply range | 2.5 V - 5.5 V | 2.5 V - 5.5 V; 4.5 V -20 V | 3.0 V - 5.5 V | 3.0 V - 5.5 V | 3.0 V - 5.5 V |
| Output supply range | 2.5 V - 5.5 V | 6.5 V - 30 V | 3.0 V - 5.5 V | 3.0 V - 5.5 V (Si838x) 9.0 V - 32 V (Si834x) | - |
| Certifications | |||||
| Featured Family | Si86xx, Si87xx, Si88xx | Si823x, Si827x, Si828x, Si823Hx | Si890x, Si892x, Si8540 | Si838x, Si834x | Si875x |
| Certification |
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Digital Isolators
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Channels of isolationUp to 6; uni-directional or bi-directional (I²C)
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Isolation ratings available:1.0, 2.5, 3.75 & 5.0 kVrms
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Data ratesUp to 150 Mbps
Multi-channel high data rate, low power digital isolators.
Applications:
- Isolating industrial interfaces: RS-485, CAN
- Process control and factory automation
- Automotive EV/HEV Battery Management Systems
Si86xx Isolator Evaluation Kit
This board allows for basic functional testing and engineering validation of various isolation product configurations for the Si86xx isolator family.
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Isolated Gate Drivers
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ConfigurationsSingle, high-side/low-side or dual driver
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Peak gate drive current4 Amps
Our isolated gate drivers provide robust isolation and reliable gate drive integrated into single packages. With flexible offerings for Silicon Carbide, Gallium Nitride, and Silicon transistor gate drive, our isolated gate drivers complete any power supply, converter/inverter, motor drive, or charging need. With industry-leading common-mode transient immunity and a variety of industry-standard package types, there’s a solution for every switching application.
Features:
- 1 kV to 5 kV isolation ratings
- 4A symmetrical peak gate current
- Up to 200 kV/µs CMTI
- 1500 V driver-to-driver withstand voltage
Applications:
- Power supplies
- EV and industrial motor drives
- Solar Inverters
- EV charging and power conversion
Si823H2 Isolated Gate Driver
Evaluation Kit
This evaluation board allows designers to check out the functionality and performance of the Si823H2 high-side/low-side driver.
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Isolated Analog and ADC
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Si892xIsolated Amplifiers
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Si890xIsolated ADCs
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Si8540High-Side DC Current Sensor
Current and voltage sensing with isolated amplifiers and ADCs
Applications:
- AC, brushless, and DC motor control and inverters
- Automotive DC-DC, BMS, and charging
- Isolated switch mode and UPS power supplies
Si8920 Isolated Amplifier Evaluation Kit
This evaluation board allows for quick connection to a shunt resistor for checking the functionality and performance of the Si8920.
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Industrial I/O
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Quad smart switches with continuous 0.7 A capability
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Unique multi-voltage output clamp for demagnetization
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Extensive diagnostic capability including over-current, over-temperature, open circuit, communication error etc.
Isolated digital input and output solutions for automation, robotics, servo motor drives, and other industrial automation applications
Applications:
- Programmable logic controllers (PLC)
- Industrial automation
- Servo motor drives, Robotics
Si8340 Smart Switch Evaluation Kit
Evaluate the quad channel, high side (sourcing) isolated smart switch with a parallel interface.
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Isolated FET Drivers
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Digital CMOS or diode emulator control inputs
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10.3 V gate drive output with < 100 μs turn-on time
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Internally generated secondary side (gate drive) power supply
A simple, reliable alternative to replace solid-state relays (SSRs) or electromechanical relays (EMRs) when combined with an external FET
Applications:
- HEV/EV automotive charging
- Motor and valve controls
- AC Mains line switching, HVAC
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