ISO1541 Datasheet PDF – Bidirectional I2C Isolator

Part Number: ISO1541

Function: Low-Power Bidirectional I2C Isolator

Package: SOIC 8 Pin Type

Manufacturer: Texas Instruments

Image and Pinouts:

ISO1541 datasheet


The ISO1540 and ISO1541 are low-power, bidirectional isolators that are compatible with I2C interfaces. These devices have their logic input and output buffers separated by TI’s Capacitive Isolation technology using a silicon dioxide (SiO2) barrier. When used in conjunction with isolated power supplies, these devices block high voltages, isolate grounds, and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry.

This isolation technology provides for function, performance, size, and power consumption advantages when compared to opto-couplers. The ISO1540 and ISO1541 enable a complete isolated I2C interface to be implemented within a small form factor.


1. Qualified for automotive applications

2. Isolated bidirectional, I2C compatible, communication

3. Open-drain outputs With 3.5-mA Side 1 and 35-mA Side 2 sink current capability



1. Electric and hybrid-electric vehicles

2. Isolated I2C buses

3. SMBus and PMBus interfaces

4. Open-drain networks

5. Motor control systems

6. Battery management

7. I2C level shifting

Other data sheets are available within the file:

IS1540, IS1541, ISO1540, ISO1540D, ISO1540DR, ISO1541QDRQ1


ISO1541 Datasheet PDF Download

ISO1541 pdf