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LDS6126-Block Diagram


11 Channel Capacitive Touch Controller with Integrated LED Driver

The LDS6126 PureTouch® capacitive touch sensor IC is a highly integrated solution that includes an integrated keypad LED driver with integrated visual effects. The device contains 11 capacitive sensor input pins, 6 of which may also be optionally configured for use as keypad LED drivers, with the other 5 optionally configurable as Direct Communication Mode (DCM) outputs to emulate mechanical button operation.


  • 11 touch sensor channels
  • 2ms update rate per active sensor
  • Built-in Slider/Scroll Support
  • Configurable hysteresis and debounce
  • Integrated LED drivers with configurable visual effects
  • 1.65-5.5v supply voltage
  • <125uW (full power), <50uW (low power)
  • I2C, SPI, SMBus serial I/F options with VDDIO
  • DCM Outputs
  • TQFN and SSOP packages available

Product Specification

Touch Voltage (V)Touch Sensors (#)Scan Rate (ms)Auto CalibrationHyst / Debounce ConfigInterfaceI/O Voltage (V)GPIOs (#)DCM Outputs (#)Pkg. Typefield__led_effects
1.65 - 5.50112.00 - 26.00YYSPI, SMBUS, I2C1.65 - 5.5015SSOP, VFQFPN

Product Options

Orderable Part IDPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
LDS6126NQGI8NQG28VFQFPN28IYesReelCheck Availability
LDS6126PYGI8PYG28SSOP28IYesReelCheck Availability


Technical Documentation

Title Type Format File Size Datesort icon
Datasheets & Errata
LDS6100 Family Datasheet (Rev 0.7 April 2012) Datasheet PDF 711 KB Apr 17, 2012
Apps Notes & White Papers
LDS610x Family AN2 Ref Code and Initialization Application Note PDF 1.77 MB Dec 12, 2012
PDN# : PA-12-02R1 PRODUCT DISCONTINUANCE NOTICE Product Discontinuation Notice PDF 56 KB Jul 25, 2013
IDT Pure Touch Product Selector Guide Misc PDF 19 KB Jan 27, 2011
IDT Touch 6100/6120 Family flyer Flyer PDF 1022 KB Dec 18, 2009