QT100A-ISG

QT100A-ISG Datasheet

QT100A CHARGE-TRANSFER QTOUCH IC

Part	Datasheet
QT100A-ISG	QT100A-ISG (pdf)

Related Parts	Information
QT100A-ISMG	QT100A-ISMG

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QT100A CHARGE-TRANSFER QTOUCH IC The QT100A charge-transfer ‘QT’ touch sensor is a self-contained digital IC capable of detecting near-proximity or touch. It will project a touch or proximity field 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. It is designed specifically for human interfaces, like control panels, appliances, toys, lighting controls, or anywhere a mechanical switch or button may be found. This device can also project a proximity field to severa centimeters with the proper electrode and circuit design. These devices are intended to replace the QT100. Two package types are offered, one of which can directly replace the QT100’s SOT-23-6 package but with a reduced thickness. OUT 1 6 SYNC VSS 2 QT100A 5 VDD SNSK 3 4 SNS 6-WSON Package SNSK 1 SNS 2 N/C 3 QT100A 10 OUT 9 N/C 8 SYNC N/C 4 7 N/C AT A GLANCE Number of keys Technology Key outline sizes Electrode design PCB Layers required Electrode materials Electrode Substrates Panel materials Panel thickness Key sensitivity Interface Moisture tolerance Power Package Signal processing Applications Patents: VSS 5 6 VDD 10-MSOP Package One Patented spread-spectrum charge-transfer. 6mm x 6mm or larger panel thickness dependent widely different sizes and shapes possible Solid or ring electrode shapes One Etched copper, silver, carbon, Indium Tin Oxide ITO PCB, FPCB, plastic films, glass Plastic, glass, composites, painted surfaces low particle density metallic paints possible Up to 50mm glass, 20mm plastic electrode size and Cs dependent Settable via capacitor Cs Digital output, active high Good 2V ~ 5.5V 6.5uA 2.0V typical 10 pin MSOP and 6 pin WSON both are RoHS compliant Self-calibration, auto drift compensation, noise filtering Control panels, consumer appliances, toys, lighting controls, mechanical switch or button QTouch patented Charge-transfer method 2008 QRG Ltd. QT100A_1R7.01_0308 Name SNSK SNS N/C N/C VSS VDD N/C SYNC N/C OUT Table Pinlist 10MSOP 6WSON -† Type I/O I/O Pwr Function Sense pin Sense pin Unused Ground Power Unused Sync & Mode Input Unused Output state Notes To Cs + Key To Cs Ground ~ +5.5V If Unused Leave open - do not connect Leave open - do not connect Always connect to Sync Leave open - do not connect - Pin Type I/O Pwr CMOS input only CMOS I/O CMOS push-pull output Power / ground

PDF Datasheet Preview

QT100A CHARGE-TRANSFER QTOUCH IC

The QT100A charge-transfer ‘QT’ touch sensor is a self-contained digital IC capable of detecting near-proximity or touch. It will project a touch or proximity field 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.

It is designed specifically for human interfaces, like control panels, appliances, toys, lighting controls, or anywhere a mechanical switch or button may be found.

This device can also project a proximity field to severa centimeters with the proper electrode and circuit design.

These devices are intended to replace the QT100. Two package types are offered, one of which can directly replace the QT100’s SOT-23-6 package but with a reduced thickness.

OUT 1
6 SYNC

VSS 2 QT100A 5 VDD

SNSK 3
4 SNS
6-WSON Package

SNSK 1 SNS 2 N/C 3

QT100A
10 OUT 9 N/C 8 SYNC

N/C 4
7 N/C

AT A GLANCE

Number of keys Technology Key outline sizes Electrode design PCB Layers required Electrode materials Electrode Substrates Panel materials Panel thickness Key sensitivity Interface Moisture tolerance Power Package Signal processing Applications Patents:

VSS 5
6 VDD
10-MSOP Package One Patented spread-spectrum charge-transfer. 6mm x 6mm or larger panel thickness dependent widely different sizes and shapes possible Solid or ring electrode shapes One Etched copper, silver, carbon, Indium Tin Oxide ITO PCB, FPCB, plastic films, glass Plastic, glass, composites, painted surfaces low particle density metallic paints possible Up to 50mm glass, 20mm plastic electrode size and Cs dependent Settable via capacitor Cs Digital output, active high Good 2V ~ 5.5V 6.5uA 2.0V typical 10 pin MSOP and 6 pin WSON both are RoHS compliant Self-calibration, auto drift compensation, noise filtering Control panels, consumer appliances, toys, lighting controls, mechanical switch or button QTouch patented Charge-transfer method
2008 QRG Ltd.

QT100A_1R7.01_0308

Name

SNSK SNS N/C N/C VSS VDD N/C SYNC N/C OUT

Table Pinlist
10MSOP 6WSON
-†

Type

I/O I/O Pwr

Function

Sense pin Sense pin

Unused Ground Power Unused Sync & Mode Input Unused Output state

Notes To Cs + Key

To Cs

Ground ~ +5.5V

If Unused

Leave open - do not connect Leave open - do not connect Always connect to Sync Leave open - do not connect -

Pin Type

I/O Pwr

CMOS input only CMOS I/O CMOS push-pull output Power / ground

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Datasheet ID: QT100A-ISG 519356