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Low-Power, Wide-Bandwidth Haptic Driver with Multiple I²C Addresses

DA7281触觉驱动程序，具有多个i²C addresses, combines custom drive sequences (on- and off-resonance) at up to 1 kHz. The DA7281 drives both ERM and LRA (narrow and wideband) actuators and tracks resonance up to 300 Hz to provide highly complex click/vibration touch effects in a wide range of applications.

DA7281将非常低的空闲电流消耗（360 NA）与低延迟触发输入相结合，以最大限度地减少施用过程深度睡眠时按钮按压后的延迟。

The DA7281 differs from the DA7280 and DA7282 by using two of the original trigger input pins as I²C address pins, allowing up to four DA7281 devices to be used in the same system.

特征

360 nA idle power mode with full I²C控制和内存保留
宽带LRA驱动器：25 Hz至1 kHz，具有共振模式
频率跟踪支持高达300 Hz
低延迟直接驱动触觉
在飞行的诊断
Custom waveform sequences
Three methods of drive with Linux and C-like driver (HAL)
Up to four different I²C addresses

好处

在同一我的同一个上沟通最多四个da7281²C巴士
Constant resonance frequency tracking through continuous current drive monitoring
超低功耗意味着较长的电池寿命
从超低功率状态响应时，仅在0.75毫秒延迟
Drives LRAs off-resonance for custom effects, or dual-resonant systems for two-dimensional vibration
启用宽带效果以及支持双谐振系统
驱动多个输入触发的不同触觉效果，无需唤醒主处理器
自动检测电机问题
频率，时间，幅度三态编程波形
使用对话框的SmartCavas™GUI快速简便的软件开发