2012-2013 Microchip Technology Inc. Preliminary DS40001664B-page 1
MTCH101
Features:
Capacitive Proximity Detection System:
- High Signal to Noise Ratio (SNR)
- Adjustable sensitivity
- Noise rejection filters
- Automatic Environmental Compensation
- Wide range of sensor shape and size support
- Stuck Release Mechanism
No External Components
Low-Power mode
Response Time Down to 75 ms
Wide Operative Voltage:
- 2.0V to 5.5V
Operating Temperature:
- -40°C to +85°C
Applications:
Light Switch
Portable Device Enabler
White Goods and Appliances
Office Equipment and Toys
Display and Keypad Backlighting Activation
SAR Compliant Application
Package Type
The device is available in 6-lead SOT-23 packaging
(see Figure 1).
FIGURE 1: 6-PIN DIAGRAM
TABLE 1: 6-PIN SOT-23 PINOUT
DESCRIPTION
I/O 6-Pin SOT-23 Description
MTI 1 Proximity Sensor Input
V
SS 2 Ground
MTSA 3 Sensitivity Adjust Input
MTO 4 Detect Output (Active-Low)
VDD 5 Power Supply Input
MTPM 6 Low-Power mode Select
(Active-Low)
MTCH101
1
2
3
VDD
Vss
6
5
4
SOT-23
MTI
MTSA
MTO
MTPM
Single-Channel Proximity Detector
MTCH101
DS40001664B-page 2 Preliminary 2012-2013 Microchip Technology Inc.
Table of Contents
1.0 Device Overview ........................................................................................................................................................................ 3
2.0 Typical Circuit ............................................................................................................................................................................ 4
3.0 Sensitivity Adjustment............................................................................................................................................................... 5
4.0 Power Mode............................................................................................................................................................................... 6
5.0 Reset.......................................................................................................................................................................................... 7
6.0 Interface with the Host ............................................................................................................................................................... 8
7.0 Detection Distance..................................................................................................................................................................... 9
8.0 Electrical Characteristics.......................................................................................................................................................... 10
9.0 Packaging Information ............................................................................................................................................................. 12
Index ........................................................................................................... ........................................................................................ 16
The Microchip Web Site ....................................................................................................................................................................... 17
Customer Change Notification Service ................................................................................................................................................ 17
Customer Support ................................................................................................................................................................................ 17
Product Identification System .............................................................................................................................................................. 18
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2012-2013 Microchip Technology Inc. Preliminary DS40001664B-page 3
MTCH101
1.0 DEVICE OVERVIEW
The MTCH101 provides an easy way to add proximity
or touch detection to any human interface application.
The device integrates a single-channel capacitive
proximity detection, which can work through plastic,
glass or wood-front panel. It also supports a wide range
of conductive materials as sensor, like copper pad on
PCB, silver or carbon printing on plastic, Indium Tin
Oxide (ITO) pad, wire/cable, etc. On-board adjustable
sensitivity and power mode selection allow the user to
configure the device at run time easily. An active-low
output will communicate the state of the sensor to a
host/master MCU, or drive an indication LED (see
Figure 1-1).
FIGURE 1-1: BLOCK DIAGRAM
ADC
Proximity
Scan Driver
Proximity Sensor
Data Filtering
Proximity
Decoding
Power Mode
Control
State Output
Sensitivity Adjust
Host/
Discrete
Components
MTCH101

MTCH101-I/OT

Mfr. #:
Manufacturer:
Microchip Technology
Description:
Proximity Sensors Proximity 1 Input 1 Output Adjustable
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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