Datasheet > QT60040

QT60040

更新时间： 2024-09-25 03:39:31

品牌	Logo	应用领域
昆腾 - QUANTUM		/
页数	文件大小	规格书
10页	296K
描述
4-KEY CHARGE-TRANSFER IC

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中文翻译

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QT60040 数据手册

QT60040

4-KEY

CHARGE-TRANSFER IC

ꢀ

Creates 4 ‘touch buttons’ through any dielectric

Only 1 inexpensive capacitor required

VDD

GND

Simple 4x1 matrix key geometry

OPT1

OPT2

100% drift compensation for lifetime reliability

'2' key rollover: senses any 2 keys at same time

ꢀ Back-lit keys possible with ITO electrodes

ꢀ

Simple direct 'per key' active-high drive outputs

Auto recalibration after 10 or 60 seconds of touch

2.5 - 5.5V single power supply operation

CMOS design - very low power consumption

14-pin SOIC package

E604 Evaluation reference design board available

APPLICATIONS -

ꢁSecurity keypanels

ꢁAppliance controls

ꢁATM machines

ꢁAutomotive controls

ꢁIndustrial keyboards

ꢁVandal-proof keypads

ꢁTouch-screens

ꢁPC / peripheral controls

The QT60040 digital charge-transfer (“QT”) QMatrix™ IC is designed to detect touch on up to 4 keys in a scanned 4x1 matrix.

It will project the keys through almost any dielectric, like glass, plastic, stone, ceramic, and even most kinds of wood, up to

thicknesses of 6mm. The touch areas are defined as simple 2-part interdigitated electrodes of conductive material, like

copper, Indium-Tin-Oxide (ITO), or screened silver or carbon deposited on the rear of a control panel. Alternatively the keys

can be implemented on a stick-on flex circuit that can be adhered to the rear of most panels.

The IC is designed specifically for domestic appliances, computer and peripheral control buttons, ATM machines, security

panels, portable instruments, machine tools, or similar products that are subject to environmental challenges or physical

attack. It permits the construction of 100% sealed, watertight keypanels that are immune to environmental factors such as

humidity and condensation, temperature, dirt accumulation, or the physical deterioration of the panel surface from abrasion,

chemicals, or abuse. The QT60040 contains Quantum-pioneered self-calibration, drift compensation, and digital filtering

algorithms that make its sensing function extremely robust and survivable.

The device can easily control keys over graphical LCD panels or LEDs when used with clear, conductive ITO electrodes. It

does not require 'chip on glass' or other exotic fabrication techniques, thus allowing the OEM to source the keymatrix from

multiple vendors.

External circuitry consists only of a single, inexpensive capacitor. The sensitivity of the keys can be set by simply changing

the value of this capacitor. The device has 4 outputs which indicate detection on the keys; up to 2 keys can be sensed at any

one time.

The QT60040 features automatic recalibration timeouts which will cause the device to recalibrate keys on an individual basis

when they are 'stuck on' for intervals of either 10s or 60s, depending on a jumper option.

QT60040 technology makes use of an important new variant of charge-transfer sensing, transverse charge-transfer, in an XY

format that minimizes the number of required scan lines and external components. Unlike older technologies it does not

require one IC per key, and is cost competitive even with some rubber membrane technologies. A distinct advantage is an

accelerated time to market due to the fact that custom molded membranes are not required; the entire system can be

designed using common PCB materials.

The E604 board available from Quantum is a reference design that permits full evaluation of the QT60040

AVAILABLE OPTIONS

T_A

0 C to +70 C

-40 C to +85 C

SOIC

DIP

QT60040-D

QT60040-IS

QT60040 / R1.04 / 0303

12 3 4 5 6 7...10

中文翻译

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与QT60040相关器件

型号	品牌	获取价格	描述	数据表
QT600406-2121	FOXCONN	获取价格	Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.025 inch Pitch, Surface Moun
QT600406-3121	FOXCONN	获取价格	Board Connector, 40 Contact(s), 2 Row(s), Female, Straight, 0.025 inch Pitch, Surface Moun
QT60040-D	QUANTUM	获取价格	4-KEY CHARGE-TRANSFER IC
QT60040-IS	QUANTUM	获取价格	4-KEY CHARGE-TRANSFER IC
QT60040-S	ETC	获取价格	IC-SMD-QPROX MATRIX SENSOR
QT601406-2121	FOXCONN	获取价格	Board Connector, 140 Contact(s), 2 Row(s), Female, Straight, 0.025 inch Pitch, Surface Mou
QT60160	QUANTUM	获取价格	16 AND 24 KEY QMATRIX TOUCH SENSOR ICs
QT60160	QT	获取价格	触摸传感ic
QT60160	MICROCHIP	获取价格	Microchip 16-key QMatrix? touch sensor IC designed for low-cost mobile and consumer electr
QT601606-2121	FOXCONN	获取价格	Board Connector, 160 Contact(s), 2 Row(s), Female, Straight, 0.025 inch Pitch, Surface Mou

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