IQS620A-1-DNR

Overview

The IQS620A-1-DNR is a multifunctional sensor IC from the ProxFusion series, integrating dual-channel capacitive proximity/touch sensing, Hall-effect detection, and inductive sensing within a single platform. It operates on a supply voltage range of 1.8V to 3.3V and features an I2C interface with optional RDY signal support. The device utilizes Automatic Tuning Implementation (ATI) for enhanced temperature stability and sensitivity adjustment across a 2pF to 200pF external capacitive load. Power consumption varies by configuration, ranging from 27µA at 20Hz response for SAR modes to 130µA at 100Hz for inductive channels. It is housed in a DFN(3x3)-10 package.

Feature Summary

• Combines capacitive, Hall-effect, and inductive sensing technologies in one integrated circuit.
• Features full automatic tuning implementation (ATI) with adjustable sensitivity and enhanced temperature stability.
• Supports multiple user interface options including proximity wake-up, touch, SAR, and hysteresis modes.
• Provides low power consumption optimized for short or long-term activations via any sensing channel.

Applications

• Mobile electronics such as phones and tablets
• SAR safety requirements for laptops, tablets, and phones
• Wearable devices
• White goods and appliances
• Human Interface Devices

Procurement Notes

Verify the specific ordering suffix '-DNR' corresponds to the DFN(3x3)-10 tape and reel packaging format. Confirm that the revision level matches the required datasheet version for compatibility with existing firmware configurations. Ensure the component meets RoHS and Reach compliance standards for your target market regulations before finalizing procurement orders.

Selection Notes

Select this component when a design requires a unified solution for capacitive, magnetic, and inductive inputs without increasing board space. Consider the DFN(3x3)-10 package constraints regarding thermal dissipation and pin pitch. Evaluate if the internal regulator capabilities and ATI features sufficiently handle the environmental parasitic capacitance variations expected in the final assembly.

Part Context

This part belongs to the Azoteq IQS620A ProxFusion series, which merges multiple sensing modalities into a single ultra-low power chip. The 'IQS620A' designation identifies the core functionality, while the suffix indicates the specific package type and manufacturing lot details. It serves as a consolidated alternative to discrete sensor solutions, reducing BOM complexity for multi-modal detection systems.

Replacement Considerations

Check for updated revisions of the IQS620A series. Verify pinout compatibility if substituting with other IQS620 variants. Ensure firmware supports the specific feature set of the replacement unit.

FAQ

What is the maximum external capacitive load capability?

The IQS620A supports an external capacitive load capability ranging from 2pF to 200pF.

How does the device handle Hall-effect detection ranges?

It offers a widely variable two-level detection range between 10mT and 200mT using on-chip Hall-effect measurement plates.

Is the IQS620A automotive qualified?

No, the datasheet explicitly states that the part is not automotive qualified.