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ISO1540QDRQ1 The Texas Instruments ISO1540QDRQ1 is a 2-channel, bidirectional I2C digital isolator designed for automotive applications. It offers 2500Vrms isolation and operates over a wide temperature range.
Mfr Part #:

ISO1540QDRQ1

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments ISO1540QDRQ1 is a 2-channel, bidirectional I2C digital isolator designed for automotive applications. It offers 2500Vrms isolation and operates over a wide temperature range.
✓ Total Stock: 5,852 pcs
$ Price Range: $2.45

ISO1540QDRQ1 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
4,737 pcs
On Request
4737 pcs On Request 1 On Request On Request On Request On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
1,115 pcs
On Request
1115 pcs On Request 1 On Request On Request 21+ On Request On Request
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ISO1540QDRQ1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Channel Type
Common Mode Transient Immunity (Min)
Data Rate (Max)
Inputs
Isolated Power
Mounting Type
Number of Channels
Operating Temperature
Pulse Width Distortion (Max)
Supplier Device Package
Supplier Package
Supply Voltage
Technology
Type
Voltage
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ISO1540QDRQ1 Description

Short technical summary and product information.

The ISO1540QDRQ1 from Texas Instruments is a digital isolator specifically designed for I2C communication in automotive environments. This device provides 2500Vrms of isolation, ensuring signal integrity and safety in demanding applications.

 

Key electrical specifications include a maximum data rate of 1 Mbps and a working isolation voltage of 400Vrms. It features 2 bidirectional channels and a common-mode transient immunity of 25kV/µs. The isolator supports a supply voltage range of 3V to 5.5V and includes open-drain outputs with specific sink current capabilities for Side 1 and Side 2.

 

Packaged in an 8-SOIC (0.154", 3.90mm Width) surface-mount configuration, the ISO1540QDRQ1 is qualified for automotive applications and AEC-Q100 compliant. It operates reliably within an ambient temperature range of -40°C to 125°C, making it suitable for various automotive systems.

ISO1540QDRQ1 Quick Information

Product Type: Digital Isolator
Canonical Name: ISO1540-Q1
Subcategory: I2C Isolators

ISO1540QDRQ1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

ISO1540QDRQ1 Estimated Pricing

Qty Low High
1+ $2.45 $2.45

Estimated market price range - modelled values for guidance only, not live distributor offers.

ISO1540QDRQ1 Features

  • 2-channel bidirectional I2C digital isolator.
  • 2500Vrms isolation rating for safety.
  • Operates at 1 Mbps data rate.
  • Wide -40°C to 125°C temperature range.
  • Automotive qualified AEC-Q100.

ISO1540QDRQ1 Applications

  • Ideal for automotive I2C communication.
  • Used in isolated power systems.
  • Ensures signal integrity in noisy environments.
  • Suitable for hot-swappable applications.

ISO1540QDRQ1 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the isolation voltage of the ISO1540QDRQ1?

The ISO1540QDRQ1 offers 2500Vrms of withstand isolation voltage.

What is the operating temperature range for this digital isolator?

The operating temperature range for the ISO1540QDRQ1 is -40°C to 125°C.

What type of interface does the ISO1540QDRQ1 support?

The ISO1540QDRQ1 supports I2C interface communication.

How many channels does the ISO1540QDRQ1 have?

The ISO1540QDRQ1 has 2 channels.

What package type is the ISO1540QDRQ1 available in?

The ISO1540QDRQ1 is available in an 8-SOIC package.

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