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CAP1188 bảng dữ liệu(PDF) 1 Page - Microchip Technology |
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CAP1188 bảng dữ liệu(HTML) 1 Page - Microchip Technology |
1 / 79 page 2015 Microchip Technology Inc. DS00001620C-page 1 General Description The CAP1188, which incorporates RightTouch® tech- nology, is a multiple channel Capacitive Touch sensor with multiple power LED drivers. It contains eight (8) individual capacitive touch sensor inputs with program- mable sensitivity for use in touch sensor applications. Each sensor input automatically recalibrates to com- pensate for gradual environmental changes. The CAP1188 also contains eight (8) LED drivers that offer full-on / off, variable rate blinking, dimness con- trols, 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 CAP1188 includes Multiple Pattern Touch recogni- tion that allows the user to select a specific set of but- tons to be touched simultaneously. If this pattern is detected, then a status bit is set and an interrupt gen- erated. Additionally, the CAP1188 includes circuitry and sup- port for enhanced sensor proximity detection. The CAP1188 offers multiple power states operating at low quiescent currents. In the Standby state of opera- tion, one or more capacitive touch sensor inputs are active and all LEDs may be used. If a touch is detected, it will wake the system using the WAKE/SPI_MOSI pin. Deep Sleep is the lowest power state available, draw- ing 5uA (typical) of current. In this state, no sensor inputs are active. Driving the WAKE/SPI_MOSI pin or communications will wake the device. Applications • Desktop and Notebook PCs • LCD Monitors • Consumer Electronics • Appliances Features • 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 Applica- tions • Multiple Communication Interfaces - SMBus / I2C compliant 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 • Eight (8) 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 RESET pin • Available in 24-pin 4mm x 4mm RoHS compliant QFN package CAP1188 8 Channel Capacitive Touch Sensor with 8 LED Drivers |
Số phần tương tự - CAP1188 |
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Mô tả tương tự - CAP1188 |
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