 2015-2016 Microchip Technology Inc.

Preliminary

DS40001793C-page 1

MTCH102/5/8

Description

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

Digital Output

MTCH101

(A)

1

N

1

MTCH102

(B)

2

MTCH105

(B)

5

MTCH108

(B)

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

http://www.microchip.com/packaging

or contact your local sales office.

TABLE 2:

PACKAGES

Packages

MSOP

TSSOP

SSOP

UDFN

QFN

UQFN

MTCH102

X

—

—

X

—

—

MTCH105

—

X

—

—

X

—

MTCH108

—

—

X

—

—

X

2, 5 and 8-Channel Proximity/Touch Controller Data Sheet