AT42QT1011-TSHR
Sensors
Technical Specifications
| Type | Description |
|---|---|
| ESD Protection Voltage | - |
| Whether the Lock | No |
| Features | Proximity detection;Capacitive Touch;Automatic sensitivity calibration;Waterproof anti-interference touch |
| Operating Temperature | -40°C~+85°C |
| Type | Description |
|---|---|
| Channels | 1 |
| Supply Voltage | 1.8V~5.5V |
| Package / Case | SOT-23-6 |
Product Introduction
AT42QT1011 (QT1011) is a digital burst mode charge-transfer (QT) sensor that is capable of detecting near-proximity or touch, making it ideal for implementing touch controls.
With the proper electrode and circuit design, the self-contained digital IC will project a touch or proximity field to several centimeters through any dielectric like glass, plastic, stone, ceramic, and even most kinds of wood. It can also turn small metal-bearing objects into intrinsic sensors, making them responsive to proximity or touch. This capability, coupled with its ability to self-calibrate, can lead to entirely new product concepts.
The QT1011 is designed specifically for human interfaces, like control panels, appliances, toys, lighting controls, or anywhere a mechanical switch or button may be found. It includes all hardware and signal processing functions necessary to provide stable sensing under a wide variety of changing conditions. Only a single low-cost capacitor is required for operation.
Features
- Number of Keys: One, configurable as either a single key or a proximity sensor
- Technology: Patented spread-spectrum charge-transfer (direct mode)
- Key outline sizes: 6 mm × 6 mm or larger (panel thickness dependent); widely different sizes and shapes possible
- Electrode design: Solid or ring electrode shapes
- PCB Layers required: One
- Electrode materials: Etched copper, silver, carbon, Indium Tin Oxide (ITO)
- Electrode substrates: PCB, FPCB, plastic films, glass
- Panel materials: Plastic, glass, composites, painted surfaces (low particle density metallic paints possible)
- Panel thickness: Up to 12 mm glass, 6 mm plastic (electrode size and Cs dependent)
- Key sensitivity: Settable via capacitor (Cs)
- Interface: Digital output, active high
- Moisture tolerance: Increased moisture tolerance based on hardware design and firmware tuning
- Operating Voltage: 1.8 V - 5.5 V; 17 μA at 1.8 V typical
- Package: 6-pin SOT23-6 RoHS compliant, 8-pin UDFN/USON RoHS compliant
- Signal processing: Self-calibration, auto drift compensation, noise filtering, Infinite max on-duration
- Patents: QTouch® (patented charge-transfer method), HeartBeat (monitors health of device)
Applications
- Control panels
- Consumer appliances
- Proximity sensor applications
- Toys
- Lighting controls
- Mechanical switch or button
Datasheet
Alternative Parts
Common AT42QT1011-TSHR alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 9031809090 |
| USHTS | 9031808070 |
| TARIC | 9031808000 |
| Type | Details |
|---|---|
| CAHTS | 9031800090 |
| BRHTS | 90318099 |
| INHTS | 90318000 |
| MXHTS | 9031.80.99 |
Sourcing Information
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