CAP1128-1-BP-TR

The CAP1128, which incorporates RightTouch technology, is a multiple channel Capacitive Touch sensor with multiple power LED drivers. It contains eight (8) 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 CAP1128 also contains two (2) 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 CAP1128 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.

• Eight (8) Capacitive Touch Sensor Inputs
  • Programmable sensitivity - Automatic recalibration - Individual thresholds for each button
• Proximity Detection
• Multiple Button Pattern Detection
• Calibrates for Parasitic Capacitance
• Analog Filtering for System Noise Sources
• Press and Hold feature for Volume-like Applications
• Multiple Communication Interfaces - SMBus / I2C compliant interface - BC-Link interface - SPI communications - Pin selectable communications protocol and multiple slave addresses (SMBus / I2C only)
• Low Power Operation - 5uA quiescent current in Deep Sleep - 50uA quiescent current in Standby (1 sensor input monitored) - Samples one or more channels in Standby
• Two (2) LED Driver Outputs - Open Drain or Push-Pull - Programmable blink, breathe, and dimness controls - Can be linked to Capacitive Touch Sensor inputs
• Dedicated Wake output flags touches in low power state
• System