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參數(shù)資料
| 型號(hào)： | MPXY8040A |
| 廠(chǎng)商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | Tire Pressure Monitoring Sensor, Temperature Compensated and Calibrated, Fully Integrated, Digital Output(輪胎壓力監(jiān)控傳感器，具有溫度補(bǔ)償與校準(zhǔn)、高度集成、數(shù)字輸出功能) |
| 中文描述： | 胎壓監(jiān)測(cè)傳感器，溫度補(bǔ)償和校準(zhǔn)，全集成，數(shù)字輸出（輪胎壓力監(jiān)控傳感器，具有溫度補(bǔ)償與校準(zhǔn)，高度集成，數(shù)字輸出功能） |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大小： | 381K |
| 代理商： | MPXY8040A |
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REV 0
Motorola, Inc. 2004
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order Number: MPXY8000
Rev. 0, 04/2004
Tire Pressure Monitoring Sensor
Temperature Compensated and
Calibrated, Fully Integrated,
Digital Output
General Description
The Motorola MPXY8000 series sensor 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 MPXY8000 series sensor 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.
MPXY8020A
MPXY8040A
SUPER SMALL OUTLINE PACKAGE
CASE 1352-03
PIN ASSIGNMENT
TIRE PRESSURE
MONITORING SENSOR
MPXY8020A:
OPTIMIZED FOR 250 kPa – 450 kPa
MPXY8040A:
OPTIMIZED FOR 500 kPa – 900 kPa
S1/V
PP
1
V
DD
2
V
SS
3
OUT 4
8-pin Super Small Outline Package (SSOP)
8 SO
7 CLK
6 DATA
5 RST
ORDERING INFORMATION
Shipped In Rails
Shipped in Tape &
Reel
MPXY8020A6U
MPXY8040A6U
MPXY8020A6T1
MPXY8040A6T1
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPXY8040A6T1 | 功能描述:板上安裝壓力/力傳感器 TPMP 8-LD GULL WING RoHS:否 制造商:Honeywell 工作壓力:0 bar to 4 bar 壓力類(lèi)型:Gage 準(zhǔn)確性:+ / - 0.25 % 輸出類(lèi)型:Digital 安裝風(fēng)格:Through Hole 工作電源電壓:5 V 封裝 / 箱體:SIP 端口類(lèi)型:Dual Radial Barbed, Same sides |
| MPXY8040A6U | 功能描述:板上安裝壓力/力傳感器 TPMP 8-LD GULL WING RoHS:否 制造商:Honeywell 工作壓力:0 bar to 4 bar 壓力類(lèi)型:Gage 準(zhǔn)確性:+ / - 0.25 % 輸出類(lèi)型:Digital 安裝風(fēng)格:Through Hole 工作電源電壓:5 V 封裝 / 箱體:SIP 端口類(lèi)型:Dual Radial Barbed, Same sides |
| MPXY8300A6T1 | 功能描述:板上安裝壓力/力傳感器 Z-AXIS SOIC 20 RoHS:否 制造商:Honeywell 工作壓力:0 bar to 4 bar 壓力類(lèi)型:Gage 準(zhǔn)確性:+ / - 0.25 % 輸出類(lèi)型:Digital 安裝風(fēng)格:Through Hole 工作電源電壓:5 V 封裝 / 箱體:SIP 端口類(lèi)型:Dual Radial Barbed, Same sides |
| MPXY8300A6U | 功能描述:板上安裝壓力/力傳感器 Z-AXIS SOIC 20 RoHS:否 制造商:Honeywell 工作壓力:0 bar to 4 bar 壓力類(lèi)型:Gage 準(zhǔn)確性:+ / - 0.25 % 輸出類(lèi)型:Digital 安裝風(fēng)格:Through Hole 工作電源電壓:5 V 封裝 / 箱體:SIP 端口類(lèi)型:Dual Radial Barbed, Same sides |
| MPXY8300B6T1 | 功能描述:板上安裝壓力/力傳感器 Z- AXIS FACE UP RoHS:否 制造商:Honeywell 工作壓力:0 bar to 4 bar 壓力類(lèi)型:Gage 準(zhǔn)確性:+ / - 0.25 % 輸出類(lèi)型:Digital 安裝風(fēng)格:Through Hole 工作電源電壓:5 V 封裝 / 箱體:SIP 端口類(lèi)型:Dual Radial Barbed, Same sides |
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