JL323B single-key capacitive touch chip is an integrated circuit designed for human touch, which can replace traditional mechanical light touch keys, and the touch interface is waterproof and dustproof, freely customizable, beautiful and durable. Using a small SOT23-6 package, with few peripheral components, and determining the sensitivity capacitance, the chip can realize the touch function. This product comes with reset function and low power consumption mode.

main feature

Fewer peripheral components

Sensitivity can be adjusted by external capacitor value

Can realize light touch button and self-locking button function

Low standby power consumption and power saving

High anti-interference: built-in voltage regulator circuit, environment adaptive algorithm, etc.

Button sensor pad size: more than 3mm×3mm, depending on different panel materials and thicknesses, if you use wires or springs, only 1-2 solder joints can be reserved

Multi-button sensor pad spacing: greater than 2mm

Button sensor pad shape: any shape (must ensure a certain effective contact area with the panel)

Key sensor pad material: PCB copper foil, metal sheet, flat top cylindrical spring, conductive rubber, conductive ink, ITO layer of conductive glass, etc.

Panel material: insulating materials, such as plexiglass, ordinary glass, tempered glass, plastic, wood, paper, ceramics and stone, etc.

Panel thickness: 0-12mm, different according to different panel materials

Working temperature: -20℃-85℃

Working voltage: 2.4V-5.5V

Package Type: SOT23-6

Typical applications: smart locks, smart bracelets, wireless Bluetooth headsets, power banks, LED lights, toys, MP4, touch air fresheners, touch speakers, touch desk lamps, touch arc lighters, etc.

Chip and Application Notes

Mode configuration description

Note: "1" means connect to VDD, "0" means connect to floating or GND, to ensure product stability, the pin cannot be left floating.

Typical Application Schematic