Description

The NCID9211 is a galvanically isolated full duplex, bi−directional,

high−speed dual−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

• Full Duplex, Bi−directional Communication

• 100 KV/s Minimum Common Mode Rejection

• High Speed:

♦ 50 Mbit/s Data Rate (NRZ)

♦ 25 ns Maximum Propagation Delay

♦ 10 ns Maximum Pulse Width Distortion

• 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