IQS228AS-00000000 TSR Azoteq Integrated Circuit (SOT23 (6-Pin)) In Stock
Azoteq IQS228AS-00000000 TSR is a single-channel capacitive touch sensor IC with Dynamic Calibration (DYCAL) and Intelligent Hysteresis technology, housed in a 6-pin SOT23 package, targeting consumer touch buttons, proximity sensing, and low-power portable devices.
- Manufacturer
- Azoteq
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- IQS228AS-00000000 TSR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of IQS228AS-00000000 TSR?
- Single-channel capacitive touch sensing with Dynamic Calibration (DYCAL) for drift compensation
- Intelligent Hysteresis reduces false triggers in noisy or wet-surface environments
- Ultra-low power consumption suitable for battery-powered portable applications
- Compact 6-pin SOT23 package for space-constrained PCB designs
- Simple digital output interface for easy microcontroller integration
What is IQS228AS-00000000 TSR used for?
The IQS228AS-00000000 TSR is used in consumer electronics, home appliances, and wearable devices requiring touch button or proximity detection with automatic baseline correction. Its Intelligent Hysteresis feature makes it well-suited for challenging environments such as damp surfaces or noisy industrial panels. The small SOT23 package and low quiescent current support battery-powered designs including remote controls, IoT sensors, and portable medical devices.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the IQS228AS-00000000 TSR datasheet?
IQS228AS-00000000 TSR Datasheet DownloadOfficial datasheet from Azoteq
What are equivalent replacements for IQS228AS-00000000 TSR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the DYCAL feature in IQS228AS help maintain reliable touch detection over time?
Dynamic Calibration (DYCAL) continuously adjusts the baseline capacitance reference to compensate for environmental drift caused by temperature, humidity, or gradual contamination. This keeps the IQS228AS-00000000 TSR reliably detecting touch events across its -40°C to 85°C operating temperature range without manual recalibration.
What supply voltage range does IQS228AS-00000000 TSR operate from in battery-powered designs?
The IQS228AS operates from a supply voltage of 1.8 V to 3.6 V, making it compatible with single-cell lithium-ion or coin-cell battery-powered designs. Its low quiescent current in standby mode extends battery life in portable consumer and IoT products where continuous touch monitoring is needed.
In which mechanical package is IQS228AS-00000000 TSR supplied, and what does that mean for PCB layout?
The IQS228AS-00000000 TSR is supplied in a 6-pin SOT23 package, one of the smallest standard IC footprints available. This allows the touch sensing function to be integrated onto extremely compact PCBs with minimal board area, suitable for wearables, smart labels, and space-constrained consumer devices.
How does Intelligent Hysteresis in IQS228AS reduce false touch events on wet or contaminated surfaces?
Intelligent Hysteresis applies an asymmetric threshold to the capacitive sensing channel, requiring a larger signal change to enter an activated state than to exit it. This prevents the IQS228AS from oscillating between touch and no-touch states when water droplets or surface contamination cause partial, unstable capacitance shifts of a few picofarads on the sensing electrode.
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About Azoteq
Azoteq is a leading electronic component manufacturer. FindMyChip sources Azoteq ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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