MTCH108

MTCH102/5/8 2, 5 and 8-Channel Proximity/Touch Controller Data Sheet Description The Microchip mTouch® MTCH102/5/8 Proximity/Touch Controller with simple digital output provides an easy way to add proximity or touch detection to any application. This device family implements capacitive sensors with active guarding capability. The sensitivity and power mode can be configured through the MTSA and MTPM pins. The MTCH102/5/8 devices also use an advanced optimization algorithm to actively suppress noise from the signal to achieve reliable proximity/touch detection. Features Capacitive Proximity and Touch Detection System: - High Signal to Noise Ratio (SNR) - Adjustable sensitivity with compensation for different sensor sizes - Multi-stage active noise suppression filters - Automatic environmental compensation - Support wide range of sensor shapes and sizes Simple I/O Interface with Existing System Smart Scan Scheduling Threshold Hysteresis Flexible Low-Power mode Brown-Out Protection Operating Voltage Range: - 2.05V to 3.6V Operating Temperature: - 40°C to +85°C Typical Application Light Switch Portable Device Enabler White Goods and Appliance Office Equipment and Toys Display and Keypad Back-lighting Activation TABLE 1: MTCH10X FAMILY TYPES Device Data Sheet Index Sensor Input Active Guard MTCH101 (A) 1 MTCH102 (B) 2(1) MTCH105 (B) 5(1) MTCH108 (B) 8(1) Note 1: One of the sensor inputs can be configured as active guard output. N Y(1) Y(...