Features

• Bidirectional I2C Compatible Isolator

• Up to1-MHz Operation

• 3.75-kV RMS Isolation Rating

• ±200-kV/μs typ Static CMTI, ±150 kV/μs typ Dynamic

CMTI

• Open-drain Outputs with 3.5-mA Side A and 35-mA

Side B Sink Current Capability

• Unidirectional (TPT72616) and Bidirectional

(TPT72617) Clock Channel

• Wide Temperature Range: −40°C to +125°C

• SOP8 Package

• Robust Electromagnetic Compatibility (EMC)

– Low Emissions

– System-level ESD, EFT, and Surge Immunity

• Safety-Related Certifications:

– VDE Certification according to DIN VDE V

0884-17(IEC60747-17)

– 3750-VRMS (SOP8) Isolation Rating per UL 1577

– CQC Certification per GB 4943.1

– CSA, TUV, and CB Certifications

Applications

• Isolated I2C Buses

• SMBus and PMBus Interfaces

• I2C Level Shifting

• Open-drain Networks

Description

The TPT7261x devices are high-performance, bidirectional

I2C compatible isolators with 3750-VRMS (SOP8) isolation

ratings per UL 1577. These devices are also to be certified

by VDE, UL, CSA, TUV, CQC, and CB.

The TPT7261x devices provide high reliability and high

performance at low power consumption while isolating

logic input and output. Each isolation signal channel is

separated by a double capacitive silicon dioxide insulation

barrier. The TPT72616 has a bidirectional data and

unidirectional clock channel while the TPT72617 device

has two isolated bidirectional channels for clock and data.

The TPT72616 is suitable for single-master applications

while the TPT72617 is suitable for multi-master or slave

clock stretching applications.

The Common Mode Transient Immunity (CMTI) and

electromagnetic compatibility of the TPT7261x devices

have been significantly enhanced through innovative circuit

design and optimized structure.

The TPT7261x family is available in the TSOP8 package

and is characterized from −40°C to +125°C