ISO7641FCDWR

The ISO7631F and ISO7641F provide current isolation up to 4242 V_PK compliant with VDE specifications. The ISO7631F has three channels, including two forward and one reverse channels, while the ISO7641F has four channels, including three forward and one reverse channels. The suffix F indicates that the output defaults to a low state in a fail-safe situation. Grade M devices are high-speed isolators with fast propagation delay and a data rate of up to 150 Mbps, while Grade C devices can achieve a data rate of up to 25 Mbps at low power consumption and feature an integrated filter for noise-prone applications. It is recommended to use Grade C devices for low-speed applications where input noise pulses lasting less than 6 ns need to be suppressed or low power consumption in the application is crucial. Each isolated channel has a logic input and output buffer separated by a silicon dioxide (SiO₂) insulation barrier. When used with an isolated power supply, these devices prevent noise currents on the data bus or other circuits from entering the local ground or interfering with or damaging sensitive circuits. These devices have TTL input thresholds and can operate with 2.7 V (Grade M), 3.3 V, and 5 V power supplies. When powered by a 3.3 V or 2.7 V power supply, all inputs can withstand 5 V.

Applications

• Industrial Fieldbus
• Profibus Fieldbus
• Modbus Serial Communication Protocol
• DeviceNet Data Bus
• Servo Control Interface
• Motor Control
• Power Supply
• Battery Pack

Key features

• Signal data rate: 150Mbps (M grade), 25Mbps (C grade)
• Robust design with integrated noise filter (C grade)
• Low power consumption, typical I_CC per channel (3.3V supply):
• ISO7631FM: 2mA at 10Mbps
• ISO7631FC: 1.5mA at 10Mbps
• ISO7641FC: 1.3mA at 10Mbps
• Ultra-low ICC_disable (C grade)
• Low propagation delay: 7ns typical (M grade)
• Fail-safe output defaults to low state
• Wide temperature range: -40°C to 125°C
• 50KV/μs typical transient immunity
• Long service life with SiO₂ insulation barrier
• Operates at 2.7V (M grade), 3.3V and 5V supply and logic levels
• Wide-body SOIC-16 package