ISO7142CCQDBQRQ1

Overview

The ISO7142CCQDBQRQ1 is an automotive-grade, low-power quad-channel digital isolator manufactured by Texas Instruments. It utilizes capacitive coupling technology to provide galvanic isolation with a rated insulation voltage of 2500 Vrms. The device supports unidirectional data transmission at a maximum data rate of 50 Mb/s and features a common-mode transient immunity (CMTI) of 25 kV/µs. It operates within a supply voltage range of 2.7 V to 5 V, drawing a typical operating current of 2.5 mA per channel. The component is housed in a 16-lead SSOP package and is qualified under AEC-Q100 standards for reliability in automotive environments.

Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for robust performance in vehicle applications
• Low-power architecture designed to minimize energy consumption during operation
• High common-mode transient immunity ensures signal integrity in noisy electrical environments

Applications

• Automotive battery management systems
• Inverter control circuits
• Motor drive interfaces
• On-board charging systems

Procurement Notes

Verify the specific suffix QDBQRQ1 matches the required automotive grade and tape-and-reel packaging configuration. Confirm that the SSOP-16 footprint aligns with the target PCB layout constraints. Ensure compliance with RoHS directives and check for any recent product change notifications regarding pinout or material composition updates before finalizing procurement orders.

Selection Notes

Select this component when designing isolated interfaces for automotive systems requiring four independent channels. It is suitable for applications needing moderate data rates up to 50 Mbps with high noise immunity. Consider the low power consumption profile for thermal management in compact enclosures. Ensure the input logic levels are compatible with the source microcontroller or processor driving the isolator inputs.

Part Context

This part belongs to the ISO714x family of low-power digital isolators from Texas Instruments. It shares the same small-footprint SSOP-16 package as other variants in the series but is distinguished by its automotive qualification and specific channel configuration. The family is designed to replace bulky magnetic isolators in space-constrained industrial and automotive designs.

Replacement Considerations

Direct replacements include ISO7142CCDBQRQ1 for non-automotive grades or ISO7140FCCDBQ for different pinout configurations. Verify compatibility with existing board layouts as package dimensions may vary slightly between standard and small-footprint versions within the same family.