Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

MPXY8020A Datasheet(PDF) 1 Page - Motorola, Inc

Part No. MPXY8020A
Description  TIRE PRESSURE MONITORING SENSOR TEMPERATURE COMPENSATED AND CALIBRATED FULLY INTEGRATED DIGITAL OUTPUT
Download  16 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
Logo 

MPXY8020A Datasheet(HTML) 1 Page - Motorola, Inc

 
Zoom Inzoom in Zoom Outzoom out
 1 / 16 page
background image
1
Motorola Sensor Device Data
Tire Pressure Monitoring Sensor
Temperature Compensated and
Calibrated, Fully Integrated,
Digital Output
GENERAL DESCRIPTION
The Motorola MPXY8020A is an 8–pin tire monitoring sensor which is
comprised of a variable capacitance pressure sensing element, a temperature
sensing element, and an interface circuit (with a wake–up feature) all on a
single chip. It is housed in a Super–Small Outline Package (SSOP), which
includes a media protection filter. Specifically designed for the low power
consumption requirements of tire pressure monitoring systems, it can combine
with a Motorola remote keyless entry (RKE) system to facilitate a low–cost
highly integrated system.
Detailed Description
The block diagram of the MPXY8020A is shown in Figure 1. The pressure
sensor is a capacitive transducer constructed using surface micromachining,
the temperature sensor is constructed using a diffused resistor, and the
interface circuit is integrated onto the same die as the sensors using a standard
silicon CMOS process.
The conditioning of the pressure signal begins with a capacitance to voltage
conversion (C to V) followed by a switched capacitor amplifier. This amplifier
has adjustable offset and gain trimming. The offset and gain are factory
calibrated, with calibration values stored in the EEPROM trim register. This
amplifier also has temperature compensation circuits for both sensitivity and
offset, which also are factory–adjusted using the EEPROM trim register.
The pressure is monitored by a voltage comparator, which compares the
measured value against an 8–bit threshold adjusted by a serial input. By
adjusting the threshold and monitoring the state of the OUT pin the external
device can check whether a low–pressure threshold has been crossed, or
perform up to 8–bit A/D conversions.
The temperature is measured by a diffused resistor with a positive
temperature coefficient driven by a current source, thereby creating a voltage.
The room temperature value of this voltage is factory–calibrated using the
EEPROM trim register. A two–channel multiplexer can route either the
pressure or temperature signal to a sampling capacitor that is monitored by a
voltage comparator with variable threshold adjust, providing a digital output for
temperature.
An internal low frequency, low power 5.4 kHz oscillator with a 14–stage
divider provides a periodic pulse to the OUT pin (divide by 16384 for 3
seconds). This pulse can be used to wake up an external MCU to begin an
interface with the device. An additional 10–stage divider will provide a pulse
every 52 minutes which can be used to reset an external MCU.
The power consumption can be controlled by several operational modes
selected by external pins.
REV 1.0
Order this document
by MPXY8020A/D
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
MPXY8020A
SUPER SMALL OUTLINE PACKAGE
CASE 1352
ORDERING INFORMATION
Shipped in Rails
Shipped in Tape & Reel
MPXY8020A6U
MPXY8020A6T1
TIRE PRESSURE MONITORING
SENSOR
OPTIMIZED FOR 250 kPa – 450 kPa
© Motorola, Inc. 2003
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16 


Datasheet Download



Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
MPXV7002Integrated Silicon Pressure Sensor On-Chip Signal Conditioned Temperature Compensated and Calibrated 1 2 3 4 5 MoreFreescale Semiconductor, Inc
MPXV5050VC6T1High Temperature Accuracy Integrated Silicon Pressure Sensor On-Chip Signal Conditioned Temperature Compensated and Calibrated 1 2 3 4 5 MoreFreescale Semiconductor, Inc
MPX5100Integrated Silicon Pressure Sensor On-Chip Signal Conditioned Temperature Compensated and Calibrated 1 2 3 4 5 MoreMotorola, Inc
MPXV5004GIntegrated Silicon Pressure Sensor On-Chip Signal Conditioned Temperature Compensated and Calibrated 1 2 3 4 5 MoreFreescale Semiconductor, Inc
MPX4080DIntegrated Silicon Pressure Sensor On-Chip Signal Conditioned Temperature Compensated and Calibrated 1 2 3 4 5 MoreFreescale Semiconductor, Inc
MPXV7025GIntegrated Silicon Pressure Sensor On-Chip Signal Conditioned Temperature Compensated and Calibrated 1 2 3 4 5 MoreFreescale Semiconductor, Inc
MPX5500INTEGRATED SILICON PRESSURE SENSOR ON CHIP SIGNAL CONDITIONED TEMPERATURE COMPENSATED AND CALIBRATED 1 2 3 4 5 MoreMotorola, Inc
MPVZ5004GIntegrated Silicon Pressure Sensor On-Chip Signal Conditioned Temperature Compensated and Calibrated 1 2 3 4 5 MoreFreescale Semiconductor, Inc
MPXV6115VC6UHigh Temperature Accuracy ntegrated Silicon Pressure Sensor On-Chip Signal Conditioned Temperature Compensated and Calibrated 1 2 3 4 5 MoreFreescale Semiconductor, Inc
MPXY8000Tire Pressure Monitoring Sensor Temperature Compensated 1 2 3 4 5 MoreMotorola, Inc

Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn