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 |
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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
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.
Isolated Gate Drivers
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Symmetric peak current4.0 capability
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Highest transient immunity200 kV/μs
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PackagesCompact 5x5 mm LGA/QFN
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ConfigurationsSingle, high-side/low-side or dual driver
Applications:
- Isolated power supplies
- PV (solar) and industrial inverters
- EV/HEV automotive traction inverters
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.
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
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.
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.
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.
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
Applications:
- HEV/EV automotive charging
- Motor and valve controls
- AC Mains line switching, HVAC