Sunnyvale, Calif. — Leadis Technology, Inc. has announced sample availability of the LDS6010 and LDS6040 touch controllers with integrated haptics driver for mobile phones. These two products are additions to the company's family of PureTouch low-power controllers designed for capacitive touch applications.
Leadis claims these devices are the industry's first capacitive touch controllers with an integrated haptics driver for use with mobile phone touch-input controls including sliders, scroll wheels, and buttons. Both devices carry the "VibeTonz-Ready" designation, certifying compatibility with Immersion Corporation's VibeTonz advanced haptic platform for mobile phones.
The LDS6010/LDS6040 controllers' haptics driver is a sophisticated block capable of delivering the crisp response required to achieve advanced tactile effects, Leadis said. The driver supports both eccentric rotating mass (ERM) and linear resonant actuator (LRA) vibration motors.
A smart watchdog timer monitors the PWM input and sets the haptics driver to shutdown mode to save power if no PWM activity is detected. An integrated over-temperature shutdown protection circuit disables the haptics functionality if the controller temperature exceeds 135°C, providing protection against motor failure conditions that might otherwise result in excessive current conditions and system battery drainage.
The LDS6010 is a programmable touch controller with integrated haptics driver for use with capacitive sensor arrays implementing touch-based input controls including sliders, scroll wheels, and buttons. The device operates with a 1.8-V touch supply voltage and a haptics supply voltage range of 3 V to 5 V. Consuming less than 200 uW of power in full power mode (haptics in shutdown), the LDS6010 enables extremely low-power consumption in full power mode.
The LDS6040 is a programmable touch controller with integrated haptics driver and keypad LED drivers for use with capacitive sensor arrays implementing touch-based input controls. Eight of the 15 sensor inputs are configurable as LED drivers capable of driving up to 8 mA of current, with 16 mA available for a single LED by connecting to two LED drivers simultaneously. LED dimming may be configured over various transition times, with 32 dimming steps available at maximum current drive. Automatic activation of LED with a valid touch event is achieved by associating an LED driver to a sensor input, alleviating the need for the host processor to turn on the LED.
The LDS6040 operates with a 1.8-V touch supply voltage and LED and haptics supply voltage ranges of 3V to 5V. Consuming less than 200 uW of power in full power mode (haptics in shutdown, no LEDs driving), the LDS6040 also enables extremely low-power consumption in full power mode.
The LDS6010 and LDS6040 devices provide fast update rates of 2 ms per sensor input with on-chip automatic calibration logic continuously monitoring the environment to adjust ambient baseline levels to increase touch accuracy. Both devices support SPI-compatible and I2C-compatible interfaces with a general-purpose input/output (GPIO) and interrupt output for additional communication with the host processor. They are packaged in a 5 x 5-mm, 40 lead TQFN package with maximum thickness of 0.8 mm.
Pricing: Starts at $0.80 per unit for orders of 100,000 per month for the LDS6000 and up to $1.50 per unit for 100,000 per month for the higher end products.
Availability: Sampling now.
Product information: LDS6010 and LDS6040
Leadis Technology, www.leadis.com
