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MICROCHIP AT42QT1070-MMHR product image
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MICROCHIP AT42QT1070-MMHRRoHS

Manufacturer
MICROCHIP
MPN
AT42QT1070-MMHR
LCSC Part #
C144195
Packaging
VQFN-20-EP(3x3)
Customer #
Key Attributes
Seven-channel QTouch Touch Sensor IC
Datasheetpdf iconMICROCHIP AT42QT1070-MMHR
In-Stock: 49
49 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 2.8857$ 2.89
10+$ 2.4391$ 24.39
30+$ 2.1598$ 64.79
100+$ 1.874$ 187.40
500+$ 1.7457$ 872.85
1,000+$ 1.6889$ 1688.90
Standard Packaging6000/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Interface/Sensor, Capacitive Touch
ManufacturerMICROCHIP
PackagingVQFN-20-EP(3x3)
Operating Temperature-40℃~+85℃
FeaturesCapacitive Touch;Automatic sensitivity calibration;Waterproof anti-interference touch
Whether the LockNo
Number of Channels7
Voltage - Supply1.8V~5.5V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging6000
Sales UnitPiece

Introduction

AI Translation

The AT42QT1070 (QT1070) is a digital burst mode charge-transfer (QT) capacitive sensor driver. The device can sense from one to seven keys, dependent on mode. The QT1070 includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions, and the outputs are fully debounced. Only a few external parts are required for operation and no external Cs capacitors are required. The QT1070 modulates its bursts in a spread-spectrum fashion in order to heavily suppress the effects of external noise, and to suppress RF emissions. The QT1070 uses a dual-pulse method of acquisition. This provides greater noise immunity and eliminates the need for external sampling capacitors, allowing touch sensing using a single pin.

Features

AI Translation
  • Configurations: Comms mode · Standalone mode
  • Number of Keys: Comms mode: 1 - 7 keys (or 1 - 6 keys plus a Guard Channel); Standalone mode: 1 - 4 keys plus a fixed Guard Channel on key 0
  • Number of I/O Lines: Standalone mode: 5 outputs
  • Technology: Patented spread-spectrum charge-transfer
  • Key Outline Sizes: 6 mm×6 mm or larger (panel thickness dependent); widely different sizes and shapes possible
  • Layers Required: One
  • Electrode Materials: Etched copper; Silver; Carbon; Indium Tin Oxide (ITO)
  • Panel Materials: Plastic; Glass; Composites; Painted surfaces (low particle density metallic paints possible)
  • Panel Thickness: Up to 10 mm glass; Up to 5 mm plastic (electrode size dependent)
  • Key Sensitivity: Comms mode: individually settable via simple commands over I²C-compatible interface; Standalone mode: settings are fixed
  • Interface: I²C-compatible slave mode (400 kHz). Discrete detection outputs
  • Signal Processing: Self-calibration; Auto drift compensation; Noise filtering; Adjacent Key Suppression (AKS) - up to three groups possible
  • Power: 1.8V - 5.5V
  • Package: 14-pin SOIC RoHS compliant IC; 20-pin VQFN RoHS compliant IC