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Product Detailed Parameters
- Description：72CH. TRACKPAD/TOUCH SCREEN CONT
- Series：ProxSense®
- Mfr：Azoteq (Pty) Ltd
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Buttons
- Proximity Detection：Yes
- Number of Inputs：72
- LED Driver Channels：-
- Interface：I2C
- Resolution：8 b
- Voltage - Supply：1.65V ~ 3.6V
- Current - Supply：80mA
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：28-UFQFN
- Supplier Device Package：28-QFN (4x4)
- Grade：-
- Qualification：-
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Overview
The IQS572BLQNR is a projected capacitive trackpad and touchscreen controller from the Azoteq ProxSense series. It supports up to 72 sensor channels with a typical report rate of 135Hz and a maximum resolution of 2048 x 1792. The device operates on a supply voltage ranging from 1.65V to 3.6V and features an I2C communication interface. It includes automatic tuning implementation (ATI), multi-touch support for up to five fingers, and gesture recognition capabilities.
Feature Summary
- Supports proximity detection, touch sensing, and snap outputs on each channel
- Enables single and multi-finger gesture recognition
- Features automatic tuning for optimal sensitivity without external components
- Includes internal voltage regulator and reference capacitor
Applications
- Compact Capacitive Keyboards
- Remote Control Trackpads
- Navigation devices
- Kiosks and POS terminals
- E-readers
Procurement Notes
Verify the component against official datasheets to confirm authenticity and revision status. Ensure compliance with RoHS directives and check moisture sensitivity levels before assembly. Confirm that the specific ordering suffix matches the required package type and tape specifications for your manufacturing process.
Selection Notes
Select this model when a balance between high channel count and compact footprint is required. The IQS572 offers 72 channels compared to the IQS550's 150 or the IQS525's 25. Consider the QFN-28 package dimensions and the 1.65V to 3.6V operating range for power-constrained designs requiring advanced gesture processing.
Part Context
This component belongs to the IQS5xx-B000 family, which also includes the IQS550 and IQS525 controllers. These devices share similar architectural features but differ in channel capacity and physical packaging. The IQS572 specifically targets applications needing moderate channel density within a small form factor.
Replacement Considerations
Publicly confirmed substitutes include the IQS550BLQNR and IQS525BLQNR. Verify compatibility regarding channel requirements and package dimensions before substitution.
