What is the Additional Feature ?

Name: MPR121QR2
Brand: NXP USA Inc.
SKU: MPR121QR2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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NXP USA Inc. MPR121QR2

Part No.:: MPR121QR2

Manufacturer:: NXP USA Inc.

Package:: 20-UFQFN

Datasheet:: MPR121QR2.pdf

Description:: IC CTLR TOUCH SENSOR 20-QFN

In Stock:: 3810

Quantity:: Add To Cart

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MPR121QR2 Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Discontinued at Mosen
Type:
Buttons, Slider, Wheel
ProximityDetection:
Yes
NumberofInputs:
Up to 12
LEDDriverChannels:
Up to 8
Interface:
I²C
Resolution:
-
Voltage-Supply:
2V ~ 3.6V
Current-Supply:
393µA
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

MPR121QR2 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including MPR121QR2 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for MPR121QR2 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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MPR121QR2 information

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MPR121QR2 Typical application Circuitry

MPR121QR2

The MPR121QR2 is a capacitive touch sensor controller designed to offer an optimal solution for adding touch interfaces, thus elevating user interactivity.

Features: The MPR121QR2 is renowned for its ability to manage up to 12 individual touchpads. It integrates a highly responsive touch detection algorithm, yielding precise and reliable performance.

Applications: The chip's notable features make it ideal for integration in interactive control panels, such as in home appliances, automotive controls, and interactive kiosks.

Key Specifications: MPR121QR2's low power consumption, configurable touch thresholds, and adaptability in varied environmental conditions contribute to its widespread acclaim.

Application Details: Interactive Kiosk Control Panel

1. Touch Pad Connectivity:

- Touch Detection: MPR121QR2's electrodes, denoted as ELE0-ELE11, are individually connected to the respective touchpads on the interactive kiosk's control panel.

- Routing Precautions: Routes connecting these electrodes should avoid crossing high-frequency signals to minimize noise interferences.

2. Power Connections:

- VDD Connection: The VDD pin ensures MPR121QR2 is powered, connecting it to a 3.3V power source.

- Power Smoothing: Place a decoupling capacitor close to the VDD pin to ensure power stability and noise reduction.

3. Data Communication:

- I2C Protocol: Utilize SDA and SCL pins for communication between MPR121QR2 and the microcontroller, ensuring command and data exchange.

- Pull-Up Resistors: Integrate pull-up resistors in the I2C lines for signal integrity.

4. Interrupts and Indications:

- IRQ Functionality: The IRQ pin gets connected to the microcontroller's interrupt input, allowing immediate response to touch detections.

- Indicator LEDs: (Optional) Connect indicator LEDs to electrode outputs to provide visual feedback when touch is detected.

Design Considerations

1. Sensitivity Tuning:

- Threshold Settings: Configure MPR121QR2 touch and release thresholds appropriately to optimize sensitivity and responsiveness.

- Environmental Adaptation: Adjust settings to adapt to various environmental conditions, ensuring consistent performance.

2. Noise Management:

- Filtering: Implement filtering techniques to minimize electrical noise, ensuring accurate touch detection.

- Grounding: Ensure that the grounding is effective to reduce noise and enhance performance.

3. Mechanical Design:

- TouchPad Design: The design, size, and spacing of touchpads should be optimized for user ergonomics and responsiveness.

- Material Selection: Choose materials that allow efficient touch detection while offering durability.

Incorporating the above steps ensures optimal integration of MPR121QR2 into an interactive kiosk. The approach guarantees a responsive, reliable, and user-friendly touch interface, fostering an intuitive user interaction experience.

MPR121QR2 FAQ

1. How to order MPR121QR2 on icwhale.com?

Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

2. How does icwhale.com guarantee that MPR121QR2 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the MPR121QR2. All suppliers must pass our qualification reviews before they can publish their products including MPR121QR2 on icwhale.com; we pay more attention to the channels and quality of MPR121QR2 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the MPR121QR2 price and inventory displayed accurate?

The price and inventory of MPR121QR2 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.

5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of MPR121QR2?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the MPR121QR2 we delivered, we will accept the replacement or return of the MPR121QR2 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of MPR121QR2.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations