Bidirectional I2C Isolators with Unidirectional Digital Channels
The Si860x series of isolators are single-package galvanic isolation solutions for I2C
and SMBus serial port applications. These products are based on Skyworks proprietary
RF isolation technology and offer shorter propagation delays, lower power consumption,
smaller installed size, and more stable operation with temperature and age versus opto
couplers or other digital isolators.
All devices in this family include hot-swap, bidirectional SDA and/or SCL isolation channels with open-drain, 35 mA sink capability that operate to a maximum frequency of
1.7 MHz. The 8-pin version (Si8600) supports bidirectional SDA and SCL isolation; the
Si8602 supports bidirectional SDA and unidirectional SCL isolation, and the 16-pin versions (Si8605, Si8606) feature two unidirectional isolation channels to support additional
system signals, such as interrupts or resets. All versions contain protection circuits to
guard against data errors when an unpowered device is inserted into a powered system.
Small size, low installed cost, low power consumption, and short propagation delays
make the Si860x family the optimum solution for isolating I2C and SMBus serial ports.
Automotive Grade is available for certain part numbers. These products are built using
automotive-specific flows at all steps in the manufacturing process to ensure the robustness and low defectivity required for automotive applications
Features
- Independent, bidirectional SDA and SCL
isolation channels. Open drain outputs with 35 mA sink
current. Supports I2C clocks up to 1.7 MHz
- Unidirectional isolation channels support
additional system signals (Si8605, Si8606)
- Up to 5000 VRMS isolation
- UL, CSA, VDE, CQC recognition
- 60-year life at rated working voltage
- High electromagnetic immunity
- Wide Operating Supply Voltage: 3.0–5.5 V
- Wide temperature range -40 to 125 C
- Transient Immunity 50 kV/us
- AEC-Q100 qualification
- RoHS-compliant packages: SOIC-8 narrow body, SOIC-16 wide body, SOIC-16 narrow body
- Automotive-grade OPNs available: AIAG compliant PPAP documentation
support. IMDS and CAMDS listing support
Applications
- Isolated I2C, SMBus
- Isolated digital power supply communication
- Power over Ethernet
- Motor Control Systems
- Hot-swap applications
- Intelligent Power systems
- On-board chargers
- Battery management systems
- Charging stations
- Traction inverters
- Hybrid Electric Vehicles
- Battery Electric Vehicles
