ISO7310CQDQ1

Overview

The ISO7310CQDQ1 is an automotive-grade, single-channel digital isolator from Texas Instruments' ISO7310-Q1 series. It utilizes capacitive coupling technology to provide galvanic isolation with a rated insulation voltage of 3000 Vrms. The device supports data rates up to 25 Mb/s and operates within a supply voltage range of 3 V to 5.5 V. Key electrical parameters include a maximum propagation delay of 36 ns, rise time of 3.2 ns, fall time of 2.7 ns, and pulse width distortion of 4 ns. It is qualified under AEC-Q100 standards for automotive applications and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Provides robust electromagnetic compatibility (EMC) performance suitable for noisy automotive environments.
• Features low power consumption characteristics optimized for energy-efficient system designs.
• Delivers high common-mode transient immunity (CMTI) of 25 kV/µs for reliable signal integrity.

Applications

• Automotive engine control units requiring isolated communication interfaces
• Inverter gate drive circuits in electric vehicle powertrains
• On-board charging systems for hybrid and electric vehicles

Procurement Notes

Verify the specific suffix 'CQDQ1' matches the required package type (SOIC-8) and temperature grade. Confirm AEC-Q100 qualification status is necessary for your automotive application. Check RoHS compliance details as indicated in official documentation. Ensure the ordering part number aligns exactly with the datasheet specifications to avoid functional mismatches.

Selection Notes

Select this component when a single-channel isolator with unidirectional data flow is required. It is appropriate for designs needing 3000 Vrms isolation strength and 25 Mbps data throughput. Consider this part for space-constrained applications due to its compact SOIC-8 footprint. Evaluate power budgets against the specified 34 mW dissipation if thermal management is critical.

Part Context

This device belongs to the ISO7310-Q1 family of robust, low-power digital isolators designed specifically for automotive electronics. It complements other variants like the dual-channel ISO7321CQDQ1 by offering a simplified single-channel solution. The series emphasizes reliability and EMC resilience, addressing the stringent demands of modern automotive electronic control units and power conversion systems.

Replacement Considerations

Direct substitutes within the same family include the ISO7310CDQ1 for commercial grade or ISO7310CWQ1 for wider temperature ranges. Verify pinout compatibility and isolation voltage ratings before swapping. Cross-reference with ISO7321CQDQ1 only if dual-channel capability is acceptable.