10.5V Fast Startup with F0 Detect and Tracking LRA Haptic Driver

The AW8695 is the high voltage H-bridge, single chip LRA haptic driver, with LRA resonant frequency detect and tracking, with an integrated boost converter and integrated waveform memory, supporting real time playback and hardware pin trigger playback. Maximum drive voltage is up to 10.5V and a typical startup time of 1.2ms makes the AW8695 an ideal haptic driver for fast responses. The AW8695 supports software controlled LRA resonant frequency(F0) detect, it can detect the actual F0 after LRA delivered to customer or the actual F0 after LRA mounted in the mobile. The AW8695 supports LRA resonant frequency tracking based on LRA BEMF. It supports automatically tracks and generates the LRA resonant frequency. The AW8695 supports LRA fault diagnostic based on resistance measurement. The AW8695 supports real time playback for long waveform play. Software trigger and hardware trigger are supported for different applications. The AW8695 integrates a high-efficiency boost converter as the H-Bridge driver supply rail. The output voltage, maximum current limit and maximum boost current are configurable. The AW8695 features configurable automatically switch to standby mode. This can less quiescent power consumption. Dedicated interrupt output pin can detect real time FIFO status and the error status of the chip. The AW8695 offers short circuit protection, over-temperature protection, under-voltage protection to protect the device. The AW8695 features general settings are communicated via an I2C -bus interface and its I2C address is configurable.


l  1MHz I2C Bus Control(Address: 0x5A/0x5B)

l  LRA Resonant Frequency Detect and Tracking Option

l  LRA Fault Diagnostics based on Resistance

l  Drive Compensation Over Battery Discharge

l  Integrated 8-KByte Internal Waveform Memory

l  Up to 4-KByte Configurable FIFO Interface

l  Flexible Playback Modes:

n  Real Time Playback, Memory Playback,

n  Hardware Trigger Playback and CONT Playback

l  1.2ms Fast Start Up Time

l  Support ≥ 16Ω LRA

l  Up to 3 Hardware Pins Trigger Input

l  Dedicated Interrupt Output Pin

l  High Voltage H-Bridge Driver

l  Integrated Boost Output Voltage up to 10.5V

l  Support Automatically Switch to Standby Mode

l  Standby Current: 10μA

l  Shutdown Current: 0.2μA

l  3V to 5.5V Supply Voltage Range

l  Short-Circuit Protection, Over-Temperature Protection, Under-Voltage Protection

l  FCQFN 3mm x 2mm x 0.55mm -20L Package


Application note

Product name Type Size Download
  • Haptic Actuator Type
    Input Signal
    Max Output Voltage(V)
    SRAM (kB)
    LRA Calibration
    Startup Time (ms)
    Package (mm)
  • AW8695FCR

    I2C 3TRIG
    8(Compression \Demopression)
    FCQFN 2X3-20L
Package form Number of pins Long(mm) Width(mm) Thick(mm) Pin spacing(mm) Heat sink Package drawing
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