Touch

SGL8022W Datasheet – 1 channel DC LED control touch chip

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Part Number: SGL8022W, SGL8022

Function: Single-channel DC LED control touch chip

Manufacturer: SiGma Micro

Image

SGL8022W LED control touch chip

Description

SGL8022W is a single-channel touch chip for LED lightness regulation.

This chip can control the on-off state of LED light and regulate its lightness on a continuous range, which could be used on incandescent and halogen.

Pinouts:
SGL8022W Pinout image SGL8022
Features

A touch operation through TI corresponds to the output of SO, which could control lightness of LED. Four functional optionsare available, which are determined by input state of OPT1 and OPT2 before electrified:

(1)  OPT1=1, OPT2=1: regulate lightness discretely without lightness-memory.

(2)  OPT1=0, OPT2=1: regulate lightness continuously without lightness-memory.

(3)  OPT1=1, OPT2=0: regulate lightness continuously with lightness-memory.

(4)  OPT1=0, OPT2=0: regulate lightness on a three-sections mode.

 

Applications Circuit

SGL8022W Datasheet, Application Circuit

SGL8022W Datasheet PDF

SGL8022W pdf

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AT42QT1040 Datasheet – Qtouch Sensor IC – QT1040 – ATMEL

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This post describes for the semiconductor AT42QT1040, QT1040.

The function of this semiconductor is Four-key QTouch Touch Sensor IC.

The package is 20-pin 3 x 3 mm VQFN RoHS compliant.

The manufacturer of this part is ATMEL.

See the preview image and the QT1040 Datasheet PDF file for more information.

Image QT1040 datasheet
Description

The AT42QT1040 (QT1040) is a digital burst mode charge-transfer (QT™) capacitive sensor driver designed for touch-key applications. The device can sense from one to four keys; one to three keys can be disabled by not installing their respective sense capacitors. Any of the four channels can be disabled in this way. The device includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions, and the outputs are fully de-bounced. Only a few external parts are required for operation. The QT1040 modulates its bursts in a spread-spectrum fashion in order to heavily suppress the effects of external noise, and to suppress RF emissions.

 

Pinout

AT42QT1040 datasheet pdf

 

Features

1. Number of QTouch® Keys : Up to four
2. Discrete Outputs : Four discrete outputs indicating individual key touch
3. Technology : Patented spread-spectrum charge-transfer (direct mode)
4. Electrode Design : Simple self-capacitance style (refer to the Touch Sensors Design Guide)
5. Electrode Materials : Etched copper, silver, carbon, Indium Tin Oxide (ITO)
6. Electrode Substrates : PCB, FPCB, plastic films, glass

AT42QT1040 Datasheet