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
- Digi-Max™
- Isolated Gate Driver
- Optocouplers
Logic-2-Logic Digital Isolators
- On-Chip Isolation Technology
- Achieves DTI (Distance Through Insulation) >0.5mm that rivals Optocouplers
- Meets UL and VDE safety standards
- AEC-Q100 qualified
Key Specifications:
- Patented Off-Chip Ceramic Capacitor isolation that serves both as the isolation barrier and as the medium of transmission for signal switching using on−off keying (OOK) technique
- Bi-Directional communication
Application Benefits:
- EMI / EMC Immunity
- Isolation Reliability / Safety
- Stable over Temp & Time
| Product | Description | Package Type |
Total Channels |
Reverse Channels |
Output Enable |
VISO (Min) (VRMS) |
VIOTM (Min) (V) | Data Rate (Mbps) |
|---|---|---|---|---|---|---|---|---|
| Digi-Max™ | ||||||||
| NCID(V)9211 | High Speed Dual-Channel, Bi-Directional Ceramic Digital Isolator | SOIC-16 Wide | 2 | 1 | Yes | 5000 | 8000 | 50 |
| NCID(V)9401 | High Speed Quad-Channel Digital Isolator | SOIC-16 Wide | 4 | 0 | Yes | 5000 | 8000 | 10 |
| NCID(V)9411 | High Speed Quad-Channel Digital Isolator | SOIC-16 Wide | 4 | 1 | Yes | 5000 | 8000 | 10 |
Applications
- Isolated PWM Control
- Industrial Field-bus Communications
- Microprocessor System Interface
- SPI
- Programmable Logic Control
- Isolated Data Acquisition System
- Voltage Level Translator
Package
SOIC-16 Wide Body
- Patented Off-Chip Ceramic Capacitor isolation that serves both as the isolation barrier and as the medium of transmission for signal switching using on−off keying (OOK) technique
- Bi-Directional communication
Key Specifications:
- High Current Output(+4/-6 A)
- Short Propagation Delays with Accurate Matching
- DESAT with Soft Turn Off
- Active Miller Clamp and Negative Gate Voltage
- High Transient & Electromagnetic Immunity
Application Benefits:
- Stable over Temp & Time
- Consistent performance
| Product | Description | Package Type |
UVLO (V) | TPD (ns) | ||||
|---|---|---|---|---|---|---|---|---|
| Isolated 1-Channel Gated Drivers | ||||||||
| IGBT Gate Drivers | ||||||||
| NCD(V)57000 | Full Featured Single-Channel IGBT Driver | SOIC-16 Wide | 12.2 to 12.8 | 60 | ||||
| NCD(V)57001 | NCD57000 with Single Output | SOIC-16 Wide | 12.2 to 12.8 | 60 | ||||
| NCD(V)57080 | Single Channel IGBT Driver (Wide Body) | SOIC-8 Wide | 11.5 to 12.5 | 60 | ||||
| NCD(V)57090 | Single Channel IGBT Driver (Narrow Body) | SOIC-8 Narrow | 11.5 to 12.5 | 60 | ||||
| Isolated 2-Channel Gated Drivers | ||||||||
| IGBT Gate Drivers | ||||||||
| NCD(V)57200 | Half-Bridge with deadtime & interlocks | SOIC-8 Narrow | 11.0 to 12.0 | 90 | ||||
| NCD(V)57201 | Half-Bridge with two independent inputs | SOIC-8 Narrow | 11.0 to 12.0 | 90 | ||||
Applications
- Motor Drives
- EV Chargers
- Solar Inverters
- Automotive Powertrain
Package
SOIC-8 Wide Body
SOIC-8 Narrow Body
SOIC-16 Wide Body
onsemi offer a broad portfolio of Optocouplers:
- LED + Photodiode
- Phototransistor, IGBT/MOSFET Gate Drivers, Photo TRIAC Drivers, High Performance Options
Key Specifications:
- High efficiency emitter
- Guaranteed Current Transfer Ratio (CTR) specifications across full temperature range from -40ºC to +125ºC
- CTR at very low input current, IF (1mA, 1.6mA, and 3mA)
- High isolation voltage certified by UL1577
Application Benefits:
- EMI / EMC Immunity
Isolation Reliability / Safety
Featured Products:
- FODM8801 - OptoHiT™ Series, High-Temperature Phototransistor
- FOD3184 - 3A Output Current, High Speed MOSFET/IGBT Gate Driver Optocoupler
Applications
- Power inverters
- SMPS
- Air Conditioner
- Consumer Appliances
- Office equipment
Package
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