CPC5903 - I²C-Bus Repeaters Series

Series: I²C-Bus Repeaters
Availability: Obsolete

Obsolete

Questions? Contact Littelfuse Support
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

Our Optically Isolated I2C Bus Repeater is the industry's first integrated optical solution for I2C bus design that:

  • Minimizes PC board space usage
  • Reduces parts count for this function

Unlike magnetically isolated digital isolator ICs, this optical solution:

  • Needs no internal clocking, which is a primary source of EMI/RFI interference
  • Supports direct static-state buffering without refresh clocks

The CPC5904 features excellent reliability and very long operational life. Contact the factory for long-term reliability information.

Features:

  • Bidirectionally Buffers Both I2C Signals
  • Glitch-Free Operation
  • Extends and Isolates I2C Interfaces
  • Standard-mode, Fast-mode and Fast-mode Plus I2C
    Side B Fast-mode I2C Compliant VDDB=4.5V-5.5V
  • Very Low EM and RF Generation - No Internal Clock
  • SMBus Compatible VDDB=3.3V
  • Operates on 2.7V to 5.5V, Enabling Level Translation
  • Slew-Limited Drivers Reduce EMI
  • Powerdown to Hi-Z Doesn't Load I2C
  • 3750Vrms  Galvanic Isolation

Applications:

  • Isolated Signal Monitoring and Control
  • Power-over-Ethernet
  • Power Supply High Side Interface
  • I2C Bus Length Extenders
  • I2C Logic Level Translation
Property (Mouseover for details) Value
Supply Voltage Range (V) 2.7 to 5.5
Transmission Speed (kbaud) 500
Channels 1 bidirectional / 1 unidirectional
Isolation Voltage (VRMS) 3750
Package Type 8-pin: DIP, SMT
Sample Request No
Partner ECAD Models CPC5903
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