STISO621 Dual-Channel Digital Isolator for Boosting Performance and Reliability in Industrial Applications
STMicroelectronics has introduced the STISO621 dual-channel digital isolator that can transfer data between two isolated domains atup to 100Mbit/s, withpulse distortion below 3ns.The device can operate as a UART interface with the help of independent unidirectional channels for handling data in both directions. Schmitt-trigger inputs to each channel ensure high noise immunity.
Two mutually galvanically isolated sides of the STISO621 can have independent supply voltages withlevel translation between 3.3V and 5.5V. The65kV/µs common-mode transient immunity (CMTI)protects the low-voltage side against high switching transients in harsh environments. Themaximum working isolation voltage (VIOWM) of 1200Vpeak, and high impulse-withstand voltage (VIOTM) helps in maintaining galvanic insulation integrity during the system faults.
The STISO621 is suited to a wide range of industrial and consumer applications in power supplies, motor drives, meters, inverters, battery monitors, appliances, Fieldbus isolators, size-critical multichannel isolation adapters, and general isolation throughout industrial-automation systems.
The new device is available in two different variants, the STISO621 available in SO8 narrow-body package with 4mm creepage and clearance with VIOTM of 4800V and the STISO621W in the SO8 wide-body package with 8mm creepage and clearance has VIOTM of 6000V. Users can leverage the EVALSTISO62XV1 product evaluation board and the EVALSTPM-3PHISO reference design for accelerating the design completion for various applications.
The STISO621 and STISO621W are both in production, priced from $0.97 for orders of 1000 pieces. The EVALSTISO62XV1 is available from ST and distributors for $25.00. The EVALSTPM-3PHISO is $118.00.
Features of STISO621 Dual-Channel Digital Isolator
- Dual-channel, digital isolator with 1-1 channel directionality
- High data rate up to 100 Mbps
- Wide Ta range operation: - 40ºC to 125ºC
- 高共模瞬态:> 50 k V /µ年代
- From 3 V to 5.5 V supply levels
- 3.3 V and 5 V level translation
- Low power consumption
- Pulse width distortions < 3 ns
- 6k V Galvanic isolation
- SO8 narrow and wide package options
Note:More technical information can be found in theSTISO621 Datasheetlinked at the bottom of this page and on the product page ofSTISO621 Dual-Channel Digital Isolator.
