BIDIRECTIONAL I2C ISOLATORS WITH UNIDIRECTIONAL DIGITAL CHANNELS
The Si840x series of isolators are single-package galvanic isolationsolutions for I2C and SMBus serial port applications. These products arebased on Skyworks Solutions proprietary RF isolation technology and offershorter propagation delays, lower power consumption, smaller installedsize, and more stable operation with temperature and age versus optocouplers or other digital isolators.
All devices in this family include hot-swap, bidirectional SDA and SCLisolation channels with open-drain, 35 mA sink capability and operate to amaximum frequency of 1.7 MHz. The 8-pin version (Si8400/01) supportsbidirectiona
l SDA and SCL isolation; the Si8402 supports bidirectional SDAand unidirectional SCL isolation, and the 16-pin version (Si8405) featurestwo unidirectional isolation channels to support additional system signals,such as an interrupt or reset. All versions contain protection circuits toguard against data errors if an unpowered device is inserted into a poweredsystem.
Small size, low installed cost, low power consumption, and shortpropagation delays make the Si840x family the optimum solution forisolating I2C and SMBus serial ports.
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 (Si8405)
Up to 2500 VRMS isolation
UL, CSA, VDE recognition
60-year life at rated working voltage
High electromagnetic immunity
Wide operating supply voltage3.0 to 5.5 V
Wide temperature range -40 to 125 C
Transient immunity 25 kV/us
RoHS-compliant packages: SOIC-8 narrow body, SOIC-16 narrow body
Applications
Isolated I2C, SMBus
Isolated digital power supply communications
Power over Ethernet
Motor Control Systems
Hot-swap applications
Intelligent Power systems
BIDIRECTIONAL I2C ISOLATORS WITH UNIDIRECTIONAL DIGITAL CHANNELS
The Si840x series of isolators are single-package galvanic isolationsolutions for I2C and SMBus serial port applications. These products arebased on Skyworks Solutions proprietary RF isolation technology and offershorter propagation delays, lower power consumption, smaller installedsize, and more stable operation with temperature and age versus optocouplers or other digital isolators.
All devices in this family include hot-swap, bidirectional SDA and SCLisolation channels with open-drain, 35 mA sink capability and operate to amaximum frequency of 1.7 MHz. The 8-pin version (Si8400/01) supportsbidirectional SDA and SCL isolation; the Si8402 supports bidirectional SDAand unidirectional SCL isolation, and the 16-pin version (Si8405) featurestwo unidirectional isolation channels to support additional system signals,such as an interrupt or reset. All versions contain protection circuits toguard against data errors if an unpowered device is inserted into a poweredsystem.
Small size, low installed cost, low power consumption, and shortpropagation delays make the Si840x family the optimum solution forisolating I2C and SMBus serial ports.
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 (Si8405)
- Up to 2500 VRMS isolation
- UL, CSA, VDE recognition
- 60-year life at rated working voltage
- High electromagnetic immunity
- Wide operating supply voltage3.0 to 5.5 V
- Wide temperature range -40 to 125 C
- Transient immunity 25 kV/us
- RoHS-compliant packages: SOIC-8 narrow body, SOIC-16 narrow body
Applications
- Isolated I2C, SMBus
- Isolated digital power supply communications
- Power over Ethernet
- Motor Control Systems
- Hot-swap applications
- Intelligent Power systems
