MTCH105T-I/ST Microchip

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. Flexible Low-Power mode Features Brown-Out Protection Capacitive Proximity and Touch Detection Operating Voltage Range: System: - 2.05V to 3.6V - High Signal to Noise Ratio (SNR) Operating Temperature: - Adjustable sensitivity with compensation for - 40C to +85C different sensor sizes - Multi-stage active noise suppression filters Typical Application - Automatic environmental compensation - Support wide range of sensor shapes and Light Switch sizes Portable Device Enabler Simple I/O Interface with Existing System White Goods and Appliance Smart Scan Scheduling Office Equipment and Toys Threshold Hysteresis Display and Keypad Back-lighting Activation TABLE 1: MTCH10X FAMILY TYPES Device Data Sheet Index Sensor Input Active Guard Digital Output MTCH101 (A) 1 N 1 (1) (1) MTCH102 (B) 2 Y 2 (1) (1) MTCH105 (B) 5 Y 5 (1) (1) MTCH108 (B) 8 Y 8 Note 1: One of the sensor inputs can be configured as active guard output. Data Sheet Index: (Unshaded devices are described in this document.) A: DS-40001664 MTCH101 Single-Channel Proximity Detector B: DS-40001793 MTCH102/105/108 Dual-Channel Proximity/Touch Controller Note: For other small form-factor package availability and marking information, please visit MTCH102/5/8 FIGURE 4: 20-LEAD SSOP PIN DIAGRAMS FIGURE 1: 8-LEAD MSOP, UDFN VSS VDD 1 20 MTO0 MTI0 2 19 MTI1 MTO1 3 18 17 MTSA MTPM 4 VDD 1 VSS 8 MTI2/Guard 16 MTO2/GC 5 MTI0 7 MTO0 2 MTO3 MTI3 15 6 MTO1/GC MTI1/Guard 6 3 MTO4 MTI4 14 7 MTPM 4 5 MTSA MTO5 13 MTI5 8 12 MTO6 MTI6 9 11 MTI7 MTO7 10 Note: See Table 3 for the pin allocation table. Note: See Table 5 for the pin allocation table. FIGURE 2: 14-LEAD TSSOP FIGURE 5: 20-LEAD UQFN VDD 1 14 VSS MTO0 MTI0 2 13 MTO1 MTI1 3 12 1 MTPM 15 MTO1 MTI2/Guard 2 14 MTSA MTPM MTSA 4 11 MTI3 3 13 MTO2/GC MTCH108 MTI4 4 12 MTO3 MTO2/GC MTI5 5 MTI2/ Guard 10 11 MTO4 5 MTO3 MTI3 6 9 MTI4 7 8 MTO4 Note: See Table 5 for the pin allocation table. Note: See Table 4 for the pin allocation table. FIGURE 3: 16-LEAD QFN 1 MTO0 MTI0 12 2 11 MTO1 MTI1 MTCH105 MTSA MTPM 3 10 MTI2/Guard 4 MTO2/GC 9 Note: See Table 4 for the pin allocation table. DS40001793C-page 2 Preliminary 2015-2016 Microchip Technology Inc. MTI3 5 16 VDD MTI4 6 15 NC MTCH102 MTCH105 MTO4 14 7 NC MTO3 8 13 VSS MTI1 20 6 MTI6 MTCH108 19 MTI7 7 MTI0 18 8 VDD MTO7 17 VSS 9 MTO6 16 MTO0 MTO5 10