cap1133 3通道电容式触摸传感器的3个LED驱动器

　　The CAP1133， which incorporates RightTouch® technology， is a multiple channel Capacitive Touch sensor with multiple power LED drivers. It contains three （3） individual capacitive touch sensor inputs with programmable sensitivity for use in touch sensor applications. Each sensor input automatically recalibrates to compensate for gradual environmental changes. The CAP1133 also contains three （3） LED drivers that offer full-on / off， variable rate blinking， dimness controls， and breathing. Each of the LED drivers may be linked to one of the sensor inputs to be actuated when a touch is detected. As well， each LED driver may be individually controlled via a host controller. The CAP1133 includes Multiple Pattern Touch recognition that allows the user to select a specific set of buttons to be touched simultaneously. If this pattern is detected， then a status bit is set and an interrupt generated. Additionally， the CAP1133 includes circuitry and support for enhanced sensor proximity detection. The CAP1133 offers multiple power states operating at low quiescent currents. In the Standby state of operation， one or more capacitive touch sensor inputs are active and all LEDs may be used. Deep Sleep is the lowest power state available， drawing 5uA （typical） of current. In this state， no sensor inputs are active. Communications will wake the device.