Texas Instruments ISO733x Low Power Triple Channel Digital Isolators

Texas Instruments ISO733x Low Power Triple Channel Digital Isolators provide galvanic isolation up to 3000V_RMS for 1 minute per UL and 4242V_PK per VDE. These devices have three isolated channels comprised of logic input and output buffers. Each is separated by silicon dioxide (SiO₂) insulation barriers. The ISO7330 has all three channels in the same direction. Texas Instruments ISO7331 Isolators have the two channels in forward and one channel in reverse direction. The default output is 'low' for devices with suffix 'F' and 'high' for devices without suffix 'F' in case of input power or signal loss. When used with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground. These noise currents can interfere with or damage sensitive circuitry.

Features

25Mbps signaling rate
Integrated noise filter on the inputs
Default output 'High' and 'Low' options
Low Power Consumption: Typical ICC per Channel at 1Mbps
- ISO7330: 1mA (5V supplies), 0.8mA (3.3V supplies)
- ISO7331: 1.4mA (5V supplies), 1mA (3.3V supplies)
32ns typical (5V supplies) low propagation delay
Operates from 3.3V and 5V supplies
3.3V and 5V level translation
-40°C to +125°C temperature range
70KV/µs transient immunity, typical (5V supplies)

Robust Electromagnetic Compatibility (EMC)
- System-level ESD, EFT, and surge immunity
- Low emissions
Wide body SOIC-16 package
>25 years isolation barrier life
Safety and Regulatory Approvals
- 4242VPK isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
- 3000VRMS isolation for 1 minute per UL 1577
- CSA component acceptance notice 5A, IEC 60950-1 and IEC 61010-1 end equipment standards
- CQC certification per GB4943.1-2011