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Multichannel Isolated Digital Input
The NSI8608 devices are fully-integrated, isolated digital-input receivers with IEC 61131-2 Type 1 and 3 characteristics. The devices receive 24-V to 60-V digital-input signals and provide isolated digital outputs. No field-side power supply is required. Integrated rectifier bridge, support source input and drain input. The devices integrates the current limiting function to effectively reduce the overall temperature of the solution. The voltage transition thresholds are compliant with Type 1 and 3 and can be increased further using an external resistor.
Product Features
Up to 3kVrms Insulation voltage
Date rate: DC to 2Mbps
Bipolar digital interface with sinking or sourcing inputs
High Input-Voltage Range: ±60V
Compliant to IEC 61131-2 Type 1, 3
Accurate Current Limit for Low-Power Dissipation
Power supply voltage: 2.5V to 5.5V
High CMTI: 25kV/μs（min）
Chip level ESD: HBM: ±4kV
High system level EMC performance:
Enhanced system level ESD, EFT, Surge immunity
Operation temperature: -40℃~ 125℃
RoHS-compliant packages: SSOP20
Safety Certificate
UL recognition: up to 3000Vrms for 1 minute per UL1577
CQC certification per GB4943.1-2011
CSA component notice SA approval IEC60950-1 standard
DIN VDE V 0884-11:2017-01
Application
Industrial automation system
Motor Control
Functional Block Diagram
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