低功耗双通道数字隔离器 Low-Power Dual Channel Digital Isolators
Description
ISO742x provide galvanic isolation up to 2500 VRMS for 1 minute per UL and 4242 VPK per VDE. These devices have two isolated channels. Each 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 bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry. ISO7420 has both channels in the same direction while ISO7421 has the two channels in opposite direction. In case of input power or signal loss, default output is "low" for devices with suffix "F" and "high" for devices without suffix "F". ISO742x have no integrated noise filter and thus have fast propagation delays.
Features
• Signaling Rate > 50 Mbps
• Default Output "High" and "Low" Options
• Low Power Consumption: Typical ICC per Channel 3.3-V Supplies:
– ISO7420: 1.4 mA at 1 Mbps, 2.5 mA at 25 Mbps
– ISO7421: 1.8 mA at 1 Mbps, 2.8 mA at 25 Mbps
• Low Propagation Delay: 7 ns Typical
• Low Pulse Skew: 200 ps Typical
• Wide TA Range Specified: –40°C to 125°C
• 50-KV/μs Transient Immunity, Typical
• Isolation Barrier Life: > 25 Years
• Operates from 3-V to 5.5-V Supply 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
Applications
• Opto-Coupler Replacement in:
– Industrial FieldBus
– ProfiBus
– ModBus
– DeviceNet™ Data Buses
– Servo Control Interface
– Motor Control
– Power Supplies
– Battery Packs
电源电压DC 3.30 V, 5.00 V
上升/下降时间 1.8ns, 1.7ns
通道数 2
耗散功率 138 mW
数据速率 50.0 Mbps
隔离电压 2500 Vrms
过温保护 No
下降时间Max 2 ns
上升时间Max 2 ns
工作温度Max 125 ℃
工作温度Min -40 ℃
电源电压 3V ~ 5.5V
电源电压Max 5 V
电源电压Min 3.3 V
安装方式 Surface Mount
引脚数 8
封装 SOIC-8
封装 SOIC-8
工作温度 -40℃ ~ 125℃
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
ISO7421FED TI 德州仪器 | 当前型号 | 当前型号 |
ISO7421FEDR 德州仪器 | 完全替代 | ISO7421FED和ISO7421FEDR的区别 |