IQS550BLQNR

Overview

The IQS550BLQNR is a projected capacitive trackpad and touchscreen controller from the Azoteq ProxSense series, designed for multi-touch applications. It supports up to 150 sensor channels with a maximum resolution of 3584 x 2304. The device operates on a supply voltage ranging from 1.65V to 3.6V and communicates via an I2C interface. It features automatic tuning implementation (ATI) for optimal sensitivity without external components. The controller provides proximity, touch, snap, and trackpad outputs, supporting gestures and multi-touch inputs. It is housed in a QFN-48 package.

Feature Summary

• Supports multi-touch detection for up to five fingers simultaneously
• Includes patented snap output capability on each channel alongside proximity and touch
• Features automatic tuning implementation (ATI) for stable high performance
• Provides gesture recognition including swipe, scroll, zoom, and tap

Applications

• Compact capacitive keyboards
• Remote control trackpads
• Navigation devices
• Kiosks and POS terminals
• E-readers

Procurement Notes

Verify component authenticity by checking manufacturer markings against official documentation. Confirm the specific ordering suffix matches the required package type and moisture sensitivity level. Ensure compliance with RoHS directives before integration into final products.

Selection Notes

Select this model when high channel count and advanced gesture support are required. Compare against IQS572 or IQS525 if fewer channels suffice. Consider power consumption requirements as active modes vary. Verify firmware compatibility with the custom B000 implementation needed for production.

Part Context

This component belongs to the IQS5xx-B000 family, which includes the IQS572 and IQS525 variants. These controllers share similar architectural features but differ in channel capacity and resolution limits. The IQS550 represents the highest density option within this specific trackpad controller series.

Replacement Considerations

Public confirmed substitute part numbers: None identified.