Overview

The LC898301AXA is a Linear Vibrator Driver IC dedicated

to haptic feedback actuator and vibrator employed in mobile

equipment. Due to the product superior technology, the drive

frequency is automatically adjusted to the resonance frequency

of the linear vibrator without the use of other external parts. As a result

of this very effective drive, the vibration is as powerful as possible

using very limited amount of energy compared to classical solutions.

The start time and brake time are fully configurable through the I2C

setting. Moreover, an automatic braking function has been

implemented allowing to optimize the braking time.

Finally, a self test mode allows to detect various possible functional

defaults during assembly.

Features

• Automatic Adjustment to the Resonance Frequency for LRA

(150 Hz to 385 Hz)

• Programmable or Automatic Braking

• Initial Drive Frequency Adjustment Function

• Adjustable Drive Voltage through I2C IF Setting

• EN IF or PWM IF Driving Mode Available by Automatic Detection

• Support Various Drive Pattern through I2C (1.8 V IF)

• Low Power Consumption Thanks to the Highly Effective Drive

and the Low Power Driving Mode

• Low Driving Noise (EMI, Audible Band)

• VBAT Compliant

• Thermal Shutdown Protection

• Self test mode for defaults detection

(open−circuit, short−circuit and weak back EMF)

• This is a Pb−Free and Halogen Free Device

Applications

• Linear Vibrator (Vibration and Haptics)

• Mobile Phone

• Portable Game

• Mobile Equipment with Haptics Function