Adafruit ISO1540 Bidirectional I2C Isolator – STEMMA QT / Qwiic

Availability:

In stock


SKU: 1104423
  • Module type: bidirectional I2C isolator
  • Power supply: from 3 V to 5 V
  • Maximum clock frequency: up to 1 MHz
  • 3-V to 5.5-V supply range
  • -40°C to +125°C operating temperature

 999.00

(inc GST)

₹ 846.61 (+18% GST extra)

In stock

Purchase this product now and earn 10 Robu Points!
Brand: Adafruit
Category: Development Board
Tags: STEMMA QT/Qwiic, Adafruit

Adafruit ISO1540 Bidirectional I2C Isolator – STEMMA QT / Qwiic (AF-4903)

Sometimes you’ll find yourself with an I2C bus controller on one side, and an I2C bus device on the other and you gotta keep em (electrically) separated. Maybe because one is Earth-grounded, maybe because you’ve got some funky power monitoring setup, maybe you want to reduce noise.

Whatever it is, you can use the Adafruit ISO1540 Bidirectional I2C Isolator to add full electrical isolation between two sides of an I2C bus. The chip we use, the TI ISO1540 is fully bi-directional, supports up to 1 MHz clock rates, supports clock-stretching, works with 3 to 5V DC power or logic (separate on either side of course), with 2500 V-RMS isolation

Usage is easy – you get power/ground/clock/data breakout pads for each side as well as a matching STEMMA QT connector. Unlike our other QT boards, the two sides are obviously electrically isolated, which means each half must be powered! Check that the green LED is lit on both sides. Now send data over I2C and you’re good to go. We have 10K pullups on each side, from the I2C pins to the matching VCC for that side.


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 VDE V 0884-11:2017-01
    • 2500-VRMS isolation for 1 minute per UL 1577
    • CSA approval per IEC 60950-1 and IEC 62368-1 end equipment standards
    • CQC basic insulation per GB4943.1-2011

Package Includes:

1 x Adafruit ISO1540 Bidirectional I2C Isolator

Model Type

bidirectional I2C isolator

Operating Power

3 V to 5 V

Maximum Clock Frequency (MHz)

1

Operating Temperature Range (°C)

-40 to 125

Shipment Weight

0.003 kg

Shipment Dimensions

8 × 7.5 × 1 cm

15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.


What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 0 reviews

0.0 overall
0
0
0
0
0

Be the first to review “Adafruit ISO1540 Bidirectional I2C Isolator – STEMMA QT / Qwiic”

There are no reviews yet.

Questions and answers of the customers

There are no questions yet. Be the first to ask a question about this product.

Only registered users are eligible to enter questions