EN

AW86727FCR

8V Fast Startup With F0 Detect And Tracking LRA Haptic Driver

Product details

Parameters

Voltage Type Charge Pump
Vout (Max) (V) 8
SRAM (kB) 4
Istandby (μA) 3.3
IO Level (V) 1.2 1.8 3.3
AAE YES
Input Signal IIS IIC 3TRIG
LRA Calibration LCC3.0
Temperature -40℃~85℃
TikTap YES
Package (mm) FCQFN 2.5X2-18L

Package | Pins | Size

FCQFN 2.5X2-18L(0.55)

Features

 1MHz I2C Bus  4-KByte Memory  8k/12k/24k/48k input wave sampling rate  F0 detect and tracking  Advance autobrake engine integrated  Playback mode:  Real time playback(Up to 4KByte FIFO)  Auto dynamic sine playback  Memory playback  3 Trigger playback  One wire playback  Cont playback  I2S/TDM playback  Resistance-Based LRA Diagnostics  Drive signal monitor for LRA protect  Drive Compensation Over Battery Discharge  Fast Start Up Time <1ms  Charge pump output voltage up to 8V  Po=2W@Vbat=4.2V THD 1%  Support automatically switch to standby mode  Standby current:3.3μA @Vbat=4.2V  Shutdown current:0.1μA  Supply voltage range 2.7 to 5.5V  Short-Circuit Protection, Over-Temperature Protection, Under-Voltage, Battery Protection  AW86727AFCR and AW86728ACSR include immersion IP license for mobile phones and wearables

Description

AW8672X is a high voltage H-bridge, single chip LRA haptic driver, with F0 detecting and tracking based on BEMF, with a charge pump up to 8V drive voltage inside, supporting real time playback, auto dynamic sine playback, memory playback, cont playback, one wire playback, I2S/TDM playback and hardware pin trigged playback. A typical startup time of 1ms makes the AW8672X an ideal haptic driver for fast responses. AW8672X integrates a 4KByte SRAM for user-defined waveforms to achieve a variety of vibration experiences, supporting 4 sampling rate (8k/12k/24k/48k) of waveforms loaded in SRAM, supporting output waveform sampling rate up-sampling to 48k. AW8672X integrates an autobrake engine to suppress the aftershocks to zero for different drive waveforms(short or long) on different LRA motors. AW8672X supports LRA fault diagnostic based on resistance measurement and protections of short-circuit, over-temperature and under-voltage. AW8672X integrates a high-efficiency charge pump as the H-Bridge driver supply rail. The output voltage, maximum current limit and maximum charge pump current are configurable. AW8672X features configurable automatically switch to standby mode after haptic waveform playback finished. This can less quiescent power consumption. The RSTN pin provides further power saving by fully shut down the whole device. Dedicated interrupt output pin can detect real time FIFO status and the error status of the chip. AW8672X features general settings are communicated via an I2C-bus interface and its I2C address is configurable.

Technical documentation

Type
Title
Language
Date
Product Design Guide AW8672X Software Design Guide 英文   2023-11-07
Product Design Guide AW8672X Hardware Design Guide 英文   2024-12-04
Datasheet DS_AW8672X_EN_V1.3 英文   2024-12-10

Design & development

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