ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

CA-IS384x is a high-performance quad-channel digital isolator with precise timing characteristics and low power dissipation. When isolating CMOS digital I/O, CA-IS384x devices provide high electromagnetic immunity and low emissions. All device versions feature Schmitt-trigger inputs for high noise immunity. The logic input and output buffers of each isolation channel are separated by a silicon dioxide (SiO2) insulation barrier. The CA-IS3840 has all four channels in the same direction, with output enable on the output side (Side B); the CA-IS3841 has three forward and one reverse channel, with output enable on both sides; the CA-IS3842 has two forward and two reverse channels, with output enable on both sides. All devices offer a failsafe mode option. If the input-side voltage or signal is lost, devices with suffix L default to a low output, while devices with suffix H default to a high output.

CA-IS384x devices feature high insulation capability, helping to prevent noise and surges on data buses or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. High CMTI capability ensures correct transmission of digital signals. CA-IS384x devices are available in 16-pin wide-body and 16-pin extra-wide-body SOIC packages. Wide-body package products support an insulation withstand voltage of up to 5.7 kVrms, while extra-wide-body package products support up to 7.5 kVrms.

Features

• Signal transmission rate: DC to 150Mbps
• Wide supply voltage range: 2.5V to 5.5V
• Wide temperature range: -40℃ to 125℃
• No startup initialization required
• Default output high and low level options
• Excellent electromagnetic immunity
• High CMTI: ±150kV/us (typical)
• Low power consumption (typical): 1.5mA/channel (@5V, 1Mbps), 6.6mA/channel (@5V, 100Mbps)
• Precise timing (typical): 12ns propagation delay
• 1ns pulse width distortion
• 2ns propagation delay skew
• 5ns minimum pulse width
• Isolation voltage up to 5.7KV RMS (wide body package)
• Isolation voltage up to 7.5KV RMS (extra-wide body package)
• ESD: HBM ±8KV
• Isolation barrier lifetime: >40 years
• Three-state output with enable pin
• Schmitt trigger input
• Wide body SOIC16-WB(W) package
• Extra-wide body SOIC16-WWB(WW) package
• RoHS compliant

Applications

• Solar inverters
• Wind power generation
• High-voltage energy storage
• High-voltage power systems
• DC charging stations
• Medical electronics