onsemi Digital Isolators
onsemi's Solutions for High Voltage Drives
Digital Isolators from onsemi use a high frequency modulated signal to transmit high speed digital data across a capacitive isolation barrier. The signal is then demodulated on the other side of the barrier, thereby, creating a high voltage isolated data transceiver.
By using digital technology (e.g. Manchester Encoding/Decoding, Digital parameters tracking), the Digital Isolator is able to maintain consistent performance across a wide temperature range and over the operational lifetime of the part. onsemi's patented Off-Chip Ceramic Capacitor isolation technology achieves DTI (Distance Through Insulation) >0.5mm that rivals Optocouplers and meets UL and VDE safety standards. As ceramic is a very hard material, the off-chip capacitor maintains the isolation barrier in case of die failure. It brings a fail safe operating mode.
The ability to transmit high speed data across a high voltage barrier without compromising safety or reliability is beneficial for industrial applications such as Isolated PWM Control, Programmable Logic Control or Isolated Data Acquisition Systems. onsemi Digital Isolators are also AEC-Q100 qualified making them ideal for automotive applications such as On-Board-Chargers and as Isolated Gate Drivers for Kelvin Gate connection and for Half or Full Bridge configuration with floating devices.
Block diagram
3-Phase Motor Control (Auto / Industrial Robotics / etc.)
Isolation - Best for cost effective, safe, multi-channel isolation and for optimized power consumption
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onsemi Solutions for High Voltage Drives | Avnet Silica
