Product Overview

The SI8641BT-IS is a quad-channel digital isolator designed for industrial automation, automotive electronics, and new energy applications. Utilizing capacitive isolation technology, it delivers 5kVrms high isolation voltage and 150Mbps high-speed data transmission. With its SOIC-16 package, it supports wide operating voltage (2.5-5.5V) and -40°C to +125°C temperature range, compatible with SPI/I2C communication protocols for demanding reliability and noise immunity.

Key Features

• High Isolation & Noise Immunity:
  Provides 5kVrms isolation voltage and 50kV/μs common-mode transient immunity (CMTI), effectively resisting electromagnetic interference in industrial environments.
• High-Speed Data Transfer:
  Supports 150Mbps data rate with propagation delay <10ns, meeting requirements for high-speed protocols like SPI and I2C.
• Wide-Temperature Stability:
  Operates from -40°C to +125°C and is AEC-Q100 qualified, suitable for automotive and industrial high-temperature applications.
• Flexible Level Conversion:
  Supports 2.5-5.5V wide supply voltage, enabling seamless signal isolation and level shifting between different voltage domains.
• Compact & High Integration:
  SOIC-16 package integrates four channels (3 forward + 1 reverse), saving PCB space and supporting automated soldering.

Technical Specifications

Typical Applications

• On-Board Chargers (OBC):
  Implements SPI communication isolation in EV OBC systems to protect low-voltage MCUs and high-voltage power modules, ensuring stable and safe charging.
• Industrial Automation:
  Used in PLCs and servo drives for digital signal isolation, resisting strong electromagnetic interference in factory environments to ensure control system reliability.
• Medical Equipment:
  Isolates biomedical signals in monitors and surgical devices, meeting medical safety standards while supporting high-speed data transmission.
• Energy Management Systems:
  Ideal for signal isolation and level conversion in solar inverters and energy storage systems, enhancing surge resistance and long-term stability.
• Test Instruments:
  Provides low-latency, high-immunity signal isolation for oscilloscopes and spectrum analyzers, ensuring high-precision measurements.

Why Choose SI8641BT-IS?

• Industry-Leading Reliability:
  AEC-Q100 qualified with 5kVrms isolation voltage, meeting stringent automotive and industrial requirements.
• High Speed & Low Latency:
  150Mbps data rate and <10ns propagation delay outperform competitors (e.g., ADUM1401), suitable for high-speed communication.
• Wide-Temperature & Stable Performance:
  -40°C to +125°C operation with built-in temperature compensation ensures consistent performance across all conditions.
• Flexible System Adaptation:
  Supports 2.5-5.5V wide voltage input, directly connecting to 3.3V/5V MCUs without external level shifters.
• Global Technical Support:
  Offers evaluation boards and application guides to accelerate product development and reduce design complexity.

SUNTOP COMPANY INTRODUCTION

Founded in 2000, Suntop is one of the leading global distributors of electronic
components, dedica ted to providing comprehensive procurement and supply chain services to the global electronics manufacturing industry. Our services include distribution, spot trading, PPV cost-saving projects, and inventory management. We not only offer high-quality products but also strive to assist our clients in achieving optimal solutions with minimal time and cost.
As a trusted partner for numerous OEMs, ODMs, CEMs, and EMS companies worldwide, our professional team manages millions of component records from thousands of trading partners across dozens of countries daily through our company database. We maintain close business relationships with major factories and distributors in North America, Europe, and Asia to ensure that our clients stay ahead in a highly competitive market.