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PDF MTCH105 Data sheet ( Hoja de datos )
| Número de pieza | MTCH105 | |
| Descripción | Proximity/Touch Controller | |
| Fabricantes | Microchip | |
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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(1)
Y(1)
Data Sheet Index: (Unshaded devices are described in this document.)
A: DS-40001664 MTCH101 Single-Channel Proximity Detector
B: Future Release 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 Microchip Technology Inc.
Preliminary
DS40001793A-page 1
1 page  
MTCH102/5/8
Table of Contents
1.0 Device Overview .......................................................................................................................................................................... 6
2.0 Typical Circuit............................................................................................................................................................................... 8
3.0 Sensitivity Adjustment .................................................................................................................................................................. 9
4.0 Power Mode and Timeout Reset................................................................................................................................................ 10
5.0 Electrical Specifications.............................................................................................................................................................. 11
6.0 Packaging Information................................................................................................................................................................ 16
Appendix .............................................................................................................................................................................................. 35
The Microchip Web Site ....................................................................................................................................................................... 36
Product Identification System .............................................................................................................................................................. 37
Customer Change Notification Service ................................................................................................................................................ 38
Customer Support ................................................................................................................................................................................ 39
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
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If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please register at our Worldwide Web site at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current
devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision
of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
• Microchip’s Worldwide Web site; http://www.microchip.com
• Your local Microchip sales office (see last page)
When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are
using.
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2015 Microchip Technology Inc.
Preliminary
DS40001793A-page 5
5 Page 
MTCH102/5/8
5.0 ELECTRICAL SPECIFICATIONS
Absolute Maximum Ratings(†)
Ambient temperature under bias....................................................................................................... -40°C to +125°C
Storage temperature ........................................................................................................................ -65°C to +150°C
Voltage on pins with respect to VSS
on VDD pin ................................................................................................................................ -0.3V to +4.0V
on all other pins ............................................................................................................. -0.3V to (VDD + 0.3V)
Total power dissipation(1) ............................................................................................................................... 800 mW
Maximum current
out of VSS pin
-40°C TA +85°C for industrial .......................................................................................................... 85 mA
into VDD pin
-40°C TA +85°C for industrial .......................................................................................................... 80 mA
Clamp current, IK (VPIN < 0 or VPIN > VDD)20 mA
Maximum output current
sunk by any I/O pin................................................................................................................................ 25 mA
sourced by any I/O pin........................................................................................................................... 25 mA
Note 1: Power dissipation is calculated as follows: PDIS = VDD x {IDD – IOH} + {(VDD – VOH) x IOH} + (VOl x IOL).
† NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for
extended periods may affect device reliability.
5.1 DC Characteristics: MTCH102/5/8
MTCH102/5/8
Param. Sym.
No.
D001 VDD
Characteristic
Supply Voltage
Standard Operating Conditions (unless otherwise
stated)
Operating temperature -40°C ≤ TA ≥ +85°C for industrial
Min. Typ.† Max. Units
Conditions
2.05 — 3.6 V
D002* VDR
RAM Data Retention Voltage (1) 1.5 — — V Device in Sleep mode
VPOR* Power-on Reset Release Volt-
— 1.6 — V
age
VPORR* Power-on Reset Rearm Voltage — 0.8 — V Device in Sleep mode
D004* SVDD
VDD Rise Rate to ensure internal 0.05 —
Power-on Reset signal
— V/ms
* These parameters are characterized but not tested.
† Data in “Typ.” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance
only and are not tested.
Note 1: This is the limit to which VDD can be lowered in Sleep mode without losing RAM data.
2015 Microchip Technology Inc.
Preliminary
DS40001793A-page 11
11 Page | ||
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| PDF Descargar | [ Datasheet MTCH105.PDF ] | |
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| Número de pieza | Descripción | Fabricantes |
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| MTCH108 | Proximity/Touch Controller | Microchip |
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