ISO7741FDBQR

• Four Isolated Data Channels
• Supply Voltage Range of 2.25 Volts to 5.5 Volts per Side
• Operating Temperature Range of -55°C to 125°C
• Maximum Junction Temperature of 150°C
• 16-Pin SSOP Surface-Mount package, 4.9mm by 3.9mm
• RoHS Non-compliant, Supplied in Tape-and-Reel

The ISO7741FDBQR is a quad-channel digital isolator from Texas Instruments, supplied in a 16-pin SSOP surface-mount package. Each side of the ISO7741FDBQR operates from a supply rail between 2.25 volts and 5.5 volts, and the device carries an operating temperature range of -55°C to 125°C with a maximum junction temperature of 150°C. Texas Instruments lists the part in active production. It ships in tape-and-reel packaging and is recorded as RoHS non-compliant.

A digital isolator passes logic signals across an insulating barrier so that the two sides share no direct electrical connection, which protects low-voltage control logic from high-voltage domains and eliminates ground loops between subsystems. Devices in this class are used in industrial automation and fieldbus interfaces, motor and servo drives, switch-mode power supplies, battery management, and medical instrumentation where patient-side isolation is required. The wide -55°C to 125°C range on the ISO7741FDBQR suits industrial and under-hood-adjacent environments rather than benign commercial ones. Typical buyers are industrial equipment OEMs, power-conversion designers and the contract manufacturers building for them.