MTCH102 Datasheet, PDF (1/37 Pages) Microchip Technology – 2, 5 and 8-Channel Proximity/Touch Controller Data Sheet

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
N
MTCH102
(B)
2⁽¹⁾
Y⁽¹⁾
MTCH105
(B)
5⁽¹⁾
Y⁽¹⁾
MTCH108
(B)
8⁽¹⁾
Y⁽¹⁾
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
B: DS-40001793
MTCH101 Single-Channel Proximity Detector
MTCH102/105/108 Dual-Channel Proximity/Touch Controller
Digital Output
1
2
5
8
Note: For other small form-factor package availability and marking information, please visit
http://www.microchip.com/packaging or contact your local sales office.
TABLE 2: PACKAGES
Packages
MTCH102
MTCH105
MTCH108
MSOP
X
—
—
TSSOP
—
X
—
SSOP
—
—
X
UDFN
X
—
—
QFN
—
X
—
UQFN
—
—
X
 2015-2016 Microchip Technology Inc.
Preliminary
DS40001793C-page 1