AT42QT1011-MAHR Part Information

Details for AT42QT1011-MAHR by Microchip Technology


Part Description

The AT42QT101x Single Key capacitive touch controller family provides an easy way to add a touch key to any application. It implements advanced filtering algorithm to offer robust operation in noisy environment. Sensitivity and low power modes can be configured as well. The AT42QT1011 output will remain high as long as a touch is detected. No "Max On" time out. The AT42QT1010 has "maximum on" touch duration of ~ 60s. The device output will then go low and a subsequent touch event can be detected. The AT42QT1012  has touch-on/touch-off (toggle) functionality and a Auto Off timer to save on power consumption.

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Part Features

  • Number of Keys: One – configurable as either a single key or a proximity sensor
  • 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)
  • Panel thickness:  Up to 12 mm glass, 6 mm plastic (electrode size and Cs dependent)
  • Key sensitivity: Settable via capacitor (Cs)
  • Power consumption: 17 µA at 1.8 V typical                                  
  • Applications: Control panels, consumer appliances, IoT, proximity sensor applications, toys, lighting controls, mechanical switch or button replacement  

Part Specifications

Product Type Proximity/Keys/Slider
Product Family AT42QT101X
Input Channels 1
Max Number of keys 1
Proximity detection Yes
Interface Digital Output
Voltage Min. (V) 1.80
Voltage Max. (V) 5.50
Temperature Range -40C to +85C

Alternative Part Descriptions

  • CAPACITIVE TOUCH SENSOR, 1 CH, UDFN-8; IC Interface Type:-; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V; Sensor Case Style:UDFN; No. of Pins:8Pins; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Product Range:-RoHS Compliant: Yes | Newark Electronics
  • Touch Sensor Capacitive 1 Key 1.8V to 5.5V SMD 8-Pin UDFN T/R | Avnet America
  • Touch Sensor Capacitive 1 Key 1.8V to 5.5V SMD 8-Pin UDFN T/R | Avnet Europe
  • AT42QT1011 Series 5.5V 378.5 ╡A Digital Burst Mode Charge Transfer Sensor-UDFN-8 | Future Electronics

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