Description
The NCID9401, NCID9411, NCID9400 and NCID9410 are
galvanically isolated high−speed quad−channel digital isolator with
output enable. This device supports isolated communications thereby
allowing digital signals to communicate between systems without
conducting ground loops or hazardous voltages.
It utilizes onsemi’s patented galvanic off−chip capacitor isolation
technology and optimized IC design to achieve high insulation and
high noise immunity, characterized by high common mode rejection
and power supply rejection specifications. The thick ceramic substrate
yields capacitors with ~25 times the thickness of thin film on−chip
capacitors and coreless transformers. The result is a combination of
the electrical performance benefits that digital isolators offer with the
safety reliability of a >0.5 mm insulator barrier similar to what has
historically been offered by optocouplers.
The device is housed in a 16−pin wide body small outline package.

Features
• Off−Chip Capacitive Isolation to Achieve Reliable High Voltage
Insulation
♦ DTI (Distance Through Insulation): ≥ 0.5 mm
♦ Maximum Working Insulation Voltage: 2000 Vpeak
• Bi−directional Communication
• 100 kV/s Minimum Common Mode Rejection
• 8 mm Creepage and Clearance Distance to Achieve Reliable High
Voltage Insulation
• Specifications Guaranteed Over 2.5 V to 5.5 V Supply Voltage
and −40°C to 125°C Extended Temperature Range
• Over Temperature Detection
• Output Enable Function (Primary and Secondary side)
• NCIV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q100
Qualified and PPAP Capable (Pending)
• Safety and Regulatory Approvals
♦ UL1577, 5000 VRMS for 1 Minute
♦ DIN EN/IEC 60747−17 (Pending)

Typical Applications
• Isolated PWM Control
• Industrial Fieldbus Communications
• Microprocessor System Interface (SPI, I2C, etc.)
• Programmable Logic Control
• Isolated Data Acquisition System
• Voltage Level Translator