IQS229-00085000-DNR

Overview

The IQS229-00085000-DNR is a single-channel capacitive proximity and touch controller designed for SAR compliance in mobile devices. It operates on a supply voltage of 1.8V to 3.6V within an industrial temperature range of -20°C to +85°C. The device features a DFN10 (3x3) package with up to 60pF sensor load capacity and a detection distance of 25mm. Power consumption is typically 100μA at 3.3V, dropping below 10μA in sleep mode. Configuration is managed via digital input pins for threshold and timer settings.

Feature Summary

• Compliant with IEC 62209-2 ed1.0 and FCC SAR standards for laptops and tablets
• Includes automatic tuning implementation (ATI) and internal capacitor implementation (ICI)
• Features dedicated movement detection filter for long-term activation recovery
• Supports standalone operation or 1-wire data streaming for debugging

Applications

• SAR detection for tablets and mobile phones
• Movement detection devices such as anti-theft systems
• Reed relay replacement applications
• Proximity activated backlighting for white goods and appliances

Procurement Notes

Verify the specific configuration code '00085000' against official Azoteq documentation to ensure it matches the required hardware parameters. Confirm that the DFN10 package type aligns with your PCB footprint requirements. Check for any special request dependencies if the standard pin configurations do not meet your design needs.

Selection Notes

Select this component when SAR compliance is mandatory for mobile electronics. Ensure the design supports the required 1.8V to 3.6V supply range. Consider the DFN10 package dimensions for space-constrained layouts. Verify that the external resistor strap values comply with the minimal component count guidelines provided in the datasheet.

Part Context

This part belongs to the ProxSense series by Azoteq, specifically tailored for self-capacitance sensing. It is distinct from multi-channel controllers like the IQS7222 series. The IQS229 focuses on single-channel proximity with integrated movement filtering, differentiating it from basic touch sensors lacking long-term activation logic.

Replacement Considerations

No direct public substitute part numbers are documented for this specific configuration. Custom ICs may be available for bulk orders with different configurations. Evaluate the IQS221 series for similar SAR applications if channel counts or package types differ in the new design.

FAQ

How does the IQS229 handle long-term activations?

The device uses a movement detection filter to reset a configurable time-out timer. If no movement is detected within the set period (e.g., 3 minutes), the output deactivates to prevent false triggers.

What interface is used for data streaming?

The IQS229 supports a 1-wire data streaming protocol on the OUT pin for debugging purposes, allowing access to internal parameters like capacitance counts and status flags.

Can the IQS229 operate without a microcontroller?

Yes, the device supports standalone operation where configuration is set via external pull-up/pull-down resistors on digital input pins, eliminating the need for an MCU.