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ISO1540 - Low-Power Bidirectional I2C Isolators

General Description

The ISO1540 and ISO1541 devices are low-power, bidirectional isolators that are compatible with I2C interfaces.

These devices have logic input and output buffers that are separated by Texas Instruments Capacitive Isolation technology using a silicon dioxide (SiO2) barrier.

Key Features

  • Isolated bidirectional, I2C compatible, communication.
  • Supports up to 1-MHz operation.
  • 3-V to 5.5-V supply range.
  • Open-drain outputs With 3.5-mA Side 1 and 35- mA Side 2 sink current capability.
  • 40°C to +125°C operating temperature.
  • ±50-kV/µs transient immunity (Typical).
  • HBM ESD protection of 4 kV on all pins; 8 kV on bus pins.
  • Safety-related certifications:.
  • 4242-VPK isolation per DIN EN IEC 60747-17 (VD.

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📁 Similar Datasheet

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Other Datasheets by Texas Instruments

Part Number Description
ISO1540-Q1 Low-Power Bidirectional I2C Isolators
ISO1541 Low-Power Bidirectional I2C Isolators
ISO1541-Q1 Low-Power Bidirectional I2C Isolators
ISO15 3.3-V Half- and Full-Duplex RS-485 Transceivers
ISO1500 RS-485/RS-422 Transceiver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
ISO1540, ISO1541 SLLSEB6F – JULY 2012 – REVISED DECEMBER 2022 ISO154x Low-Power Bidirectional I2C Isolators 1 Features • Isolated bidirectional, I2C compatible, communication • Supports up to 1-MHz operation • 3-V to 5.5-V supply range • Open-drain outputs With 3.5-mA Side 1 and 35- mA Side 2 sink current capability • –40°C to +125°C operating temperature • ±50-kV/µs transient immunity (Typical) • HBM ESD protection of 4 kV on all pins; 8 kV on bus pins • Safety-related certifications: – 4242-VPK isolation per DIN EN IEC 60747-17 (VDE 0884-17) – 2500-VRMS isolation for 1 minute per UL 1577 – CSA approval per IEC 62368-1 end equipment standard – CQC basic insulation per GB4943.