Leadis Technology, Inc. (Leadis) has introduced two new capacitive controllers, LDS6018 and LDS6048, to its PureTouch family. The new LDS6018 and LDS6048 will maintain non-mobile applications requiring more powerful actuators and higher direct drive voltages up to 5.5V. The LDS6018 is a programmable touch controller with integrated TouchSense-ready haptic driver for use with capacitive sensor arrays implementing touch-based input controls including sliders, scroll wheels, and buttons.

Previously LDS6010 (touch controller with integrated TouchSense-ready haptic driver and LDS6040 (touch controller with integrated TouchSense-ready haptic driver and keypad LED drivers) will maintain portable implementations requiring up to 3.6V direct drive voltage. Both LDS6018 and LDS6048 contain 15 sensor input channels and an integrated TouchSense(R)-ready haptic driver, with the LDS6048 adding keypad LED driver functionality on eight of the 15 sensor inputs.

The addition of tactile feedback to touch controls significantly enhances the user experience, and Immersion is clearly the leader in haptics technology, said Alvin Wong, vice president and general manager for Touch at Leadis. Combining Immersions’ haptic playback software, effects library, and technology license with our TouchSense(R)-certified touch controller provides our customers with a proven and highly scalable solution to achieve best-in-class haptics and a truly compelling user experience.

About the LDS6018 and LDS6048

The LDS6048 provides the same functionality as the LDS6018, with the addition of integrated keypad LED driver functionality. Both devices has 15 sensor inputs, fast update rates of 2ms per sensor input, and on-chip automatic calibration logic to continuously monitor the environment and adjust ambient baseline levels for increased touch accuracy.

Eight of the 15 sensor inputs on the LDS6048 are configurable as LED drivers competent of driving up to 8mA of current, with > 60mA available for a single LED by combining multiple LED drivers together. Automatic LED activation upon a valid touch is achieved by combining an LED driver to a sensor input. A full array of dimming options is also supported.

The LDS6018 and LDS6048 offer enormously low power consumption without the introduction of touch latencies. Each device consumes less than 150uW of power (typical) in full power mode (touch sensor power consumption, haptics driver in shutdown). Both devices are packaged in 5mm x 5mm 40ld TQFN packages with maximum thickness of 0.8mm.