ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

CMT804X is a high-performance quad-channel digital isolator featuring a silicon dioxide insulation barrier and supporting isolation voltages up to 5 kVRMS. The device enables communication between two different power domains, preventing noise currents on data buses or other circuits from entering the local ground and thereby avoiding interference with or damage to sensitive circuits. An enable pin is provided to place the corresponding outputs into a high-impedance state in multi-master drive applications, reducing power consumption. The product family offers up to four forward channels and two reverse channels. Upon loss of input power or signal, CMT804X1 defaults to a high output level, while CMT804X0 defaults to a low output level. Through innovative chip design and layout, the device achieves high electromagnetic immunity and low emissions at low power consumption, meeting system-level compliance requirements for ESD, EFT, surge, and radiated emissions. The CMT804X series is available in SOIC-16 wide-body and narrow-body packages.

Features

• Safety certifications: DIN VDE V 0884-11: 2017-01, UL 1577 component recognition, CSA certification (compliant with IEC 60950-1, IEC 62368-1, IEC 61010-1, and IEC 60601-1 end-product standards), CQC certification per GB4943.1-2022, TÜV certification per EN 60950-1, EN 62368-1, and EN 61010-1
• Enhanced EMC: system-level ESD, EFT, and surge immunity; ±8kV IEC 61000-4-2 contact discharge protection across isolation barrier; low emissions
• Data rate up to 150 Mbps
• Wide supply voltage range: 2.5 V to 5.5 V
• Wide operating temperature range: -40℃ ~ 125℃
• Robust isolation barrier: >40-year expected lifetime, isolation rating up to 5 kVRMS, surge capability up to 8 kV, typical CMTI of ±200 kV/μs
• Default output-high and output-low options available
• Low power consumption: typical 1.5 mA per channel at 1 Mbps data rate
• Low propagation delay: typical 9 ns at 5V supply
• Available in SOIC-16 package (wide-body and narrow-body)

Applications

• Industrial Automation
• New Energy Vehicles
• Photovoltaic Inverters
• Motor Control
• Isolated SPI