ISO1540QDRQ1

$3.77

Description：DGTL ISOLTR 2.5KV 2CH I2C 8-SOIC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:4700765898b8 Category: Digital Isolators Brand: Texas Instruments

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Product introduction

Product Detailed Parameters

Description：DGTL ISOLTR 2.5KV 2CH I2C 8-SOIC
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Number of Channels：2
Voltage - Isolation：2500Vrms
Rise / Fall Time (Typ)：-
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：8-SOIC (0.154", 3.90mm Width)
Supplier Device Package：8-SOIC
Grade：Automotive
Qualification：AEC-Q100

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ISO1540QDRQ1

Overview

The ISO1540QDRQ1 is a low-power, bidirectional digital isolator designed for I2C interfaces. It features two channels with capacitive coupling technology and operates within a supply voltage range of 3V to 5.5V. The device provides an isolation voltage of 2500Vrms and supports data rates up to 1Mbps. It includes a shutdown function and meets AEC-Q100 automotive qualification standards. Packaged in an 8-SOIC case, it ensures reliable signal transmission across isolated boundaries.

Feature Summary

Bidirectional I2C interface compatibility
Automotive grade AEC-Q100 qualification
Integrated shutdown control function

Applications

Automotive sensor isolation
Industrial I2C bus isolation
Medical equipment signal isolation

Procurement Notes

Verify the specific suffix 'QDRQ1' to confirm automotive grade status and tape-and-reel packaging. Ensure the design accounts for the 8-SOIC package dimensions and thermal requirements. Confirm that the I2C pull-up resistors are correctly sized for the specified data rate and capacitance limits defined in the official datasheet.

Selection Notes

Select this component when bidirectional I2C isolation is required in automotive or industrial environments. It is suitable for applications needing low power consumption and high common-mode transient immunity. Consider the 8-SOIC footprint during PCB layout. Verify that the operating temperature range meets the system's environmental constraints.

Part Context

This part belongs to the ISO154x-Q1 family of low-power bidirectional isolators from Texas Instruments. It is specifically optimized for I2C communication protocols. The Q1 designation indicates automotive qualification, ensuring reliability under harsh conditions. It serves as a key component for breaking ground loops in sensitive measurement systems.

Replacement Considerations

ISO1540DRQ1 is a non-automotive grade alternative with similar electrical characteristics but lacks AEC-Q100 certification. ISO1540QDQ1 is a tube-packaged version of the same automotive-grade device. Verify pinout and functional equivalence before substitution.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.