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ISO7421

Texas Instruments

Low-Power Dual-Channel Digital Isolators

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community ISO7420, ISO7420M, ISO7421 SLL...


Texas Instruments

ISO7421

File Download Download ISO7421 Datasheet


Description
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community ISO7420, ISO7420M, ISO7421 SLLS984I – JUNE 2009 – REVISED JULY 2015 ISO742x Low-Power Dual-Channel Digital Isolators 1 Features 1 Highest Signaling Rate: 1 Mbps Low Power Consumption, Typical ICC per Channel (3.3-V operation): – ISO7420: 1.1 mA, ISO7421: 1.5 mA Low Propagation Delay – 9 ns Typical Low Skew – 300 ps Typical Wide TA Range: –40°C to 125°C (M-Grade) 50-kV/μs Transient Immunity, Typical Over 25-Year Isolation Integrity at Rated Voltage Operates From 3.3-V and 5-V Supply and Logic Levels 3.3-V and 5-V Level Translation Narrow Body SOIC-8 Package Safety and Regulatory Approvals: – 4242 VPK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1 – 2500 VRMS Isolation for 1 minute per UL 1577 – CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards – CQC Certification per GB4943.1-2011 2 Applications Optocoupler Replacement in: – Industrial Fieldbus – Profibus – Modbus – DeviceNet™ Data Buses – Servo Control Interface – Motor Control – Power Supplies – Battery Packs 3 Description The ISO7420, ISO7420M and ISO7421 provide galvanic isolation up to 2500 VRMS for 1 minute per UL. These digital isolators have two isolated channels. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bu...




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