Tire Pressure Monitoring System - Lierda · RF Receiver Antenna TPMS Module LF Antenna Receiver/...
Transcript of Tire Pressure Monitoring System - Lierda · RF Receiver Antenna TPMS Module LF Antenna Receiver/...
TPMSTire Pressure Monitoring System
Introduction of TI TPMS Solutions
Agenda
• Background
– What is TPMS
– Direct & Indirect System
– Historical Background/ Regulation
• TI’s TPMS Module
– Pressure Sensing Technologies & Comparison
– Package with Ceramic Pressure Sensor Diaphragm
– System Level Block Diagram
– Device Configuration
– Key Features
• What’s Next
– Development Roadmap
– Future Technologies … More Integration/ Battery-less
• F/W Development Tools
• TI TPMS Business
Agenda
• Background
– What is TPMS
– Direct & Indirect System
– Historical Background/ Regulation
• TI’s TPMS Module
– Pressure Sensing Technologies & Comparison
– Package with Ceramic Pressure Sensor Diaphragm
– System Level Block Diagram
– Device Configuration
– Key Features
• What’s Next
– Development Roadmap
– Future Technologies … More Integration/ Battery-less
• F/W Development Tools
• TI TPMS Business
RF
Receiver
Antenna
TPMS
Module
LF
Antenna
Receiver/ Diag.
Control UnitDisplay
What is a TPMS Module?
TPMS: Tire Pressure Monitoring System
Ceramic Pressure
Sensor Module
TPMS Module
Sensor & TransmitterTPMS Module
w/ Tire Valve
Combined with
ABS System
RF
Receiver
Antenna
TPMS
Module
LF
Antenna
Receiver/ Diag.
Control U
nit
Display
Direct & Indirect System
Direct System
• Accurate Pressure Measurement
• Quick Measurement
• Can Apply any Speed
• Relatively High Cost
• High Cost for Replace
• Battery Life Limitation
Indirect System
• Software adder on existing ABS System
• Lower Cost for Implementation & Tire Replacement
• Not able to Measure the absolute Pressure Value
• Works while running only
• No Life Limitation
• Used with Run-Flat Tire
TPMS Historical BackgroundStarted from Heavy Vehicles and high end Sports Cars
Issues on Ford/Firestone
Started to Set the Regulation
FMVSS138 in US
Start the Regulation in US
Expanding to universal rule ISO/FDIS 21750
Regulations in each
Region & Countries
Fuel Efficiency/
Green Consideration
Safety Consideration
Started to implement
on European cars
TREAD Act
TPMS Regulations & RequirementsFMVSS138FMVSS138FMVSS138FMVSS138 SAE J2657SAE J2657SAE J2657SAE J2657 ISO/FDIS 21750ISO/FDIS 21750ISO/FDIS 21750ISO/FDIS 21750
Warning <75% CIPfor any time
at significant under-inflated condition
Pressuer drop of100kPa
<90% CIPfor any time
Defined by SW
P Sense Range 0 to 1400 kPa 50 to 637.5 kPaP Sense Resolution 2 kPa 1.25 kPaP Sense Accuracy +/- 10 kPa (Note 1)
+/- 25 kPa (Note 4)+/- 10 kPa +/- 7 kPa (note 1)
+/- 10 kPa (note 2)+/- 20 kPa (note 3)
Response Time 20 min 10 min 10 min 1 min Defined by SWMinmum Operate Speed 50 km/h 24 km/h 25 km/h 20 km/h any speedAbsolute Maximum 1200 kPa/ 5 sec 1400 kPa 1200 kPa
Operation Temperature -40℃ to +85℃ -40℃ to +85℃ -40℃ to +125℃ -40℃ to +125℃Temp. Accuracy +/- 3℃ +/- 3℃ (note 4)
+/- 5℃ (note 5)
Battery Voltage Sensing Yes YesOperation Voltage Range 2.7 to 3.3 V
(1.8 to 3.6 V)1.5 to 3.5V
Battery Life 6 Yr 10 Yr (over 10 Yr)Module Life 6 Yr/ 100k km 10 Yr/ 150k km (over 10 Yr)
IEC/CISPR 22,24RF Center Frequency 315 / 434 MHz 315 / 434 MHzModulation Method FSK/ ASK FSK/ ASKRF Power -1 to 10dBm +5 dBm (typ)
-30 to +10 dBmPower Adjustable Steps 1dBm 0.1 dBmCurrent Consumption whileTransmitting Data
< 9mA (@+5dBm) 8.5mA (@+5dBm)
LF Diagnostics Yes YesCarrier Frequency 125 kHz 125 kHzAM Modulation 100% 100%Signal Input Sensitivity TBD 0.5 mVppData Rate up to 4k bps? 500 to 4000 bps
Typical OEMTypical OEMTypical OEMTypical OEMRequirementsRequirementsRequirementsRequirements
TI TPMS-CTI TPMS-CTI TPMS-CTI TPMS-C
Temperature RelatedTemperature RelatedTemperature RelatedTemperature Related
RegulationsRegulationsRegulationsRegulations
Pressure Sensing RelatedPressure Sensing RelatedPressure Sensing RelatedPressure Sensing Related
FeatureFeatureFeatureFeature
LF Diagnostics RelatedLF Diagnostics RelatedLF Diagnostics RelatedLF Diagnostics Related
Battery/ Power RelatedBattery/ Power RelatedBattery/ Power RelatedBattery/ Power Related
RF Data Transmission RelatedRF Data Transmission RelatedRF Data Transmission RelatedRF Data Transmission Related
Agenda
• Background
– What is TPMS
– Direct & Indirect System
– Historical Background/ Regulation
• TI’s TPMS Module
– Pressure Sensing Technologies & Comparison
– Package with Ceramic Pressure Sensor Diaphragm
– System Level Block Diagram
– Device Configuration
– Key Features
• What’s Next
– Development Roadmap
– Future Technologies … More Integration/ Battery-less
• F/W Development Tools
• TI TPMS Business
TPMS Sensing Technology & Comparison
Sensor Technology
Piezo-Resistive Sensor Capacitive Sensor SAW Device
Silicon MEMS Ceramic
• Low Power
• Wide Dynamic Range
• Small Solution Size
• Strong to Chemicals
• Low Power
• Smaller Solution Size
• Easy to Calibrate
• Future One Chip
Integration
• Small Size
• Future One Chip
Integration
• Lower Cost?
Why Ceramic
• Comparison of Ceramic Diaphragm and MEMS
Resistive PResistive PResistive PResistive PSensorSensorSensorSensor
DiaphragmDiaphragmDiaphragmDiaphragm CeramicCeramicCeramicCeramic SiliconSiliconSiliconSilicon SiliconSiliconSiliconSiliconProcessProcessProcessProcess PackagePackagePackagePackage MEMSMEMSMEMSMEMS PiesoelectricPiesoelectricPiesoelectricPiesoelectric
Accuracy/ ResolutionAccuracy/ ResolutionAccuracy/ ResolutionAccuracy/ Resolution ◎◎◎◎ ◎◎◎◎ ◎◎◎◎Temp. CharacteristicsTemp. CharacteristicsTemp. CharacteristicsTemp. Characteristics ◎◎◎◎ ◎◎◎◎ △△△△S/NS/NS/NS/N ◎◎◎◎ △△△△ ◎◎◎◎Easy to CaribrateEasy to CaribrateEasy to CaribrateEasy to Caribrate ◎◎◎◎ ◎◎◎◎ △△△△Drift by TimeDrift by TimeDrift by TimeDrift by Time ◎◎◎◎ ○○○○ ○○○○Power DissipationPower DissipationPower DissipationPower Dissipation ◎◎◎◎ ◎◎◎◎ △△△△
WeightWeightWeightWeight ○○○○ ◎◎◎◎ ◎◎◎◎Module SizeModule SizeModule SizeModule Size ◎◎◎◎ ◎◎◎◎ ◎◎◎◎Diaphragm Mech. StrengthDiaphragm Mech. StrengthDiaphragm Mech. StrengthDiaphragm Mech. Strength ○○○○ ○○○○ ○○○○vs Mechanical Stressvs Mechanical Stressvs Mechanical Stressvs Mechanical Stress ◎◎◎◎ ○○○○ ○○○○SoldabilitySoldabilitySoldabilitySoldability ○○○○ ◎◎◎◎ ◎◎◎◎
Chemical StabilityChemical StabilityChemical StabilityChemical Stability ◎◎◎◎ △△△△ △△△△Mostuer SensitivityMostuer SensitivityMostuer SensitivityMostuer Sensitivity ◎◎◎◎ △△△△ △△△△Temp. SensitivityTemp. SensitivityTemp. SensitivityTemp. Sensitivity ◎◎◎◎ ○○○○ ○○○○EMIEMIEMIEMI ○○○○ ○○○○ ○○○○
CostCostCostCost ○○○○ ○○○○ ○○○○ProductivityProductivityProductivityProductivity ◎◎◎◎ ○○○○ ○○○○Future IntegrationFuture IntegrationFuture IntegrationFuture Integration ×××× ○○○○ ○○○○
Cost/Cost/Cost/Cost/ProductivityProductivityProductivityProductivity
Capacitive P SensorCapacitive P SensorCapacitive P SensorCapacitive P Sensor
FunctionalFunctionalFunctionalFunctionalViewViewViewView
MechanicalMechanicalMechanicalMechanicalViewViewViewView
EnvironmentalEnvironmentalEnvironmentalEnvironmentalViewViewViewView
• Relatively Low Cost
• Simple Structure
• Strong to Chemical Stress
• Not influence to power dissipation
• Supply Capability
• Utilize existing facilities
Package with Ceramic Sensor DiaphragmCeramic Ceramic Ceramic Ceramic PackagePackagePackagePackage OutlookOutlookOutlookOutlook
Top view
Ceramic
package
Ceramic pressure
sensor (diaphragm)
IC
Acceleration sensor Acceleration sensor Acceleration sensor Acceleration sensor (MEMS chip)(MEMS chip)(MEMS chip)(MEMS chip)□□□□7mm7mm7mm7mm
Bottom view
Cut view
System Level Block Diagram
• Proposed System Solution Diagram with TI’s Products
RF
Receiver
Antenna
TPMS
Module
LF AntennaReceiver/ Diag.
Control Unit
Display
TPICxxxx
CC1110
VDDVDDVDDVDD
VREGVREGVREGVREG
CKCKCKCK
GNDGNDGNDGND
XTALXTALXTALXTAL
RFOUTRFOUTRFOUTRFOUT
111111116666 15151515 14141414
13131313
2222
3333
4444
55556666 7777 8888
9999
10101010
12121212
11111111
VOUTVOUTVOUTVOUT GNDGNDGNDGND
GNDGNDGNDGND
LFINLFINLFINLFIN
LFINBLFINBLFINBLFINB
OTPWR_TESTOTPWR_TESTOTPWR_TESTOTPWR_TEST
DIDIDIDITVOTVOTVOTVO
DODODODO
LDLDLDLD
LiLiLiLi----BatteryBatteryBatteryBattery
RF
AN
TR
F A
NT
RF
AN
TR
F A
NT
VaractorDiode
TPMS Module Block Diagram
• Enables to Build up Module with
Minimum external Components
Device Configuration
MCU 8051MCU 8051MCU 8051MCU 8051Code Memory : 16KB
RAM: 128ByteExt RAM: 128ByteEEPROM: 7bit x 32
GNDGNDGNDGND
3333
XTALXTALXTALXTALClock ControlClock ControlClock ControlClock Control
LFLFLFLF----OSC & TimerOSC & TimerOSC & TimerOSC & Timer
Test IFTest IFTest IFTest IF5555Test I/FTest I/FTest I/FTest I/F
LF ReceiverLF ReceiverLF ReceiverLF Receiver
LFINLFINLFINLFIN
LFINBLFINBLFINBLFINB
AN
TA
NT
AN
TA
NT
RF Tx RF Tx RF Tx RF Tx ContorlContorlContorlContorl
TVOTVOTVOTVO
RFOUTRFOUTRFOUTRFOUT
VOUTVOUTVOUTVOUT
AN
TA
NT
AN
TA
NT
G Sensor G Sensor G Sensor G Sensor AFEAFEAFEAFE
Pressure SensorPressure SensorPressure SensorPressure Sensor
GGGGSensorSensorSensorSensor
Temp. Sensor Temp. Sensor Temp. Sensor Temp. Sensor & AFE& AFE& AFE& AFE
Voltage SensorVoltage SensorVoltage SensorVoltage Sensor&AFE&AFE&AFE&AFE
Pressure Sensor AFEPressure Sensor AFEPressure Sensor AFEPressure Sensor AFE
VDDVDDVDDVDD
VREGVREGVREGVREGSystem Power Control & System Power Control & System Power Control & System Power Control & RegRegRegReg
Key Features – Sensors and AFE
• Pressure Measurement
– Range : 50 kPa ~ 637.5 kPa
0 ~ 1100 kPa (Absolute Max)
– Accuracy : +/- 7 kPa (@ -30℃ ~ 100℃)
+/- 10 kPa (@ -40℃ ~ 120℃)
– Resolution: 1.25 kPa
• Temperature Measurement
– Resolution: 1℃
– Accuracy: +/- 5℃ (All Range)
+/- 3℃ (-20℃ ~ 70℃)
• Battery Voltage Measurement
– Accuracy: 0.1V
• In Package Accelerometer (Optional)
– Full scale range: -15g ~ 20g
– Static acceleration robustness > 2 000g
VDDVDDVDDVDD
MCU 8051MCU 8051MCU 8051MCU 8051
Code Memory : 16KBRAM: 128ByteExt RAM: 128ByteEEPROM: 7bit x 32
VREGVREGVREGVREG
Test IFTest IFTest IFTest IF
GNDGNDGNDGND
XTALXTALXTALXTAL
5555
3333
System Power System Power System Power System Power Control & Control & Control & Control & RegRegRegReg
LF LF LF LF ReceiverReceiverReceiverReceiver
RF Tx RF Tx RF Tx RF Tx ControlControlControlControl
Clock ControlClock ControlClock ControlClock Control
LFLFLFLF----OSC & OSC & OSC & OSC & TimerTimerTimerTimer
Test I/FTest I/FTest I/FTest I/F
LFINLFINLFINLFIN
LFINBLFINBLFINBLFINB
TVOTVOTVOTVO
RFOUTRFOUTRFOUTRFOUT
VOUTVOUTVOUTVOUT
AN
TA
NT
AN
TA
NT
AN
TA
NT
AN
TA
NT
Pressure Pressure Pressure Pressure SensorSensorSensorSensor
GGGGSensorSensorSensorSensor
Pressure Pressure Pressure Pressure Sensor AFESensor AFESensor AFESensor AFE
G Sensor G Sensor G Sensor G Sensor AFEAFEAFEAFE
Temp. Sensor Temp. Sensor Temp. Sensor Temp. Sensor & AFE& AFE& AFE& AFE
Voltage Voltage Voltage Voltage SensorSensorSensorSensor&AFE&AFE&AFE&AFE
Key Features – Embedded Microcontroller
• Embedded 8051 Compatible
Micro Controller
– 16K-Bytes ROM
– 256-Bytes RAM
– OTP Version for System
Debugging
– EEPROM for Sensor Calibration
and Data storage
• 7bit x 32 word
• MSB 3bits for ECC & LSB 4bits for
Data
– 10MHz internal Clock
VDDVDDVDDVDD
MCU 8051MCU 8051MCU 8051MCU 8051
Code Memory : 16KBRAM: 128ByteExt RAM: 128ByteEEPROM: 7bit x 32
VREGVREGVREGVREG
Test IFTest IFTest IFTest IF
GNDGNDGNDGND
XTALXTALXTALXTAL
5555
G Sensor G Sensor G Sensor G Sensor AFEAFEAFEAFE
3333
Pressure Pressure Pressure Pressure SensorSensorSensorSensor
GGGGSensorSensorSensorSensor
Temp. Sensor Temp. Sensor Temp. Sensor Temp. Sensor & AFE& AFE& AFE& AFE
Voltage Voltage Voltage Voltage SensorSensorSensorSensor&AFE&AFE&AFE&AFE
System Power System Power System Power System Power Control & Control & Control & Control & RegRegRegReg
LF LF LF LF ReceiverReceiverReceiverReceiver
RF Tx RF Tx RF Tx RF Tx ControlControlControlControl
Clock ControlClock ControlClock ControlClock Control
LFLFLFLF----OSC & OSC & OSC & OSC & TimerTimerTimerTimer
Test I/FTest I/FTest I/FTest I/F
Pressure Pressure Pressure Pressure Sensor AFESensor AFESensor AFESensor AFE
LFINLFINLFINLFIN
LFINBLFINBLFINBLFINB
TVOTVOTVOTVO
RFOUTRFOUTRFOUTRFOUT
VOUTVOUTVOUTVOUT
AN
TA
NT
AN
TA
NT
AN
TA
NT
AN
TA
NT
Key Features – Integrated RF Tx, LF Rx
• Integrated RF Transmitter
– Carrier Ferquency: 315MHz/ 434MHz
– Keying Method : ASK/ FSK
– RF Power : +5 dBm (typ)
– Adjustable Range : -30 dBm to +10dBm
– Adjustable Step : 0.1 dBm
– RF Spurious : -25dBc
– RF Power Auto Gain Control, Frequency Auto Tuning
• Main X-tal Oscillator: 19.70789 MHz
• Integrated LF Receiver
– Carrier Frequency : 125 kHz
– Keying : ASK
– Data rate : 500 to 4000 bps
– Detection Time : < 300uS
VDDVDDVDDVDD
MCU 8051MCU 8051MCU 8051MCU 8051
Code Memory : 16KBRAM: 128ByteExt RAM: 128ByteEEPROM: 7bit x 32
VREGVREGVREGVREG
Test IFTest IFTest IFTest IF
GNDGNDGNDGND
XTALXTALXTALXTAL
5555
G Sensor G Sensor G Sensor G Sensor AFEAFEAFEAFE
3333
Pressure Pressure Pressure Pressure SensorSensorSensorSensor
GGGGSensorSensorSensorSensor
Temp. Sensor Temp. Sensor Temp. Sensor Temp. Sensor & AFE& AFE& AFE& AFE
Voltage Voltage Voltage Voltage SensorSensorSensorSensor&AFE&AFE&AFE&AFE
System Power System Power System Power System Power Control & Control & Control & Control & RegRegRegReg
LF LF LF LF ReceiverReceiverReceiverReceiver
RF Tx RF Tx RF Tx RF Tx ControlControlControlControl
Clock ControlClock ControlClock ControlClock Control
Test I/FTest I/FTest I/FTest I/F
Pressure Pressure Pressure Pressure Sensor AFESensor AFESensor AFESensor AFE
LFINLFINLFINLFIN
LFINBLFINBLFINBLFINB
TVOTVOTVOTVO
RFOUTRFOUTRFOUTRFOUT
VOUTVOUTVOUTVOUT
AN
TA
NT
AN
TA
NT
AN
TA
NT
AN
TA
NT
LFLFLFLF----OSC & OSC & OSC & OSC & TimerTimerTimerTimer
Key Features – Low Power
• Integrated Voltage Regulator
• Back up Oscillator for Low Power
Operation in Sleep condition
• Ultra Low Power Consumption
– 0.2uA (typ) in Stand-by (LF Oscillator operating)
– 1.2mA(typ) in Measurement Mode
– 8.5mA(Max) in Transmitting
(+5dBm)
• Wide Operation Voltage Range:
– 1.5V to 3.5V
• Enables to over 10-year system
operation with small Li-Battery
VDDVDDVDDVDD
MCU 8051MCU 8051MCU 8051MCU 8051
Code Memory : 16KBRAM: 128ByteExt RAM: 128ByteEEPROM: 7bit x 32
VREGVREGVREGVREG
Test IFTest IFTest IFTest IF
GNDGNDGNDGND
XTALXTALXTALXTAL
5555
3333
Pressure Pressure Pressure Pressure SensorSensorSensorSensor
GGGGSensorSensorSensorSensor
System Power System Power System Power System Power Control & Control & Control & Control & RegRegRegReg
LF LF LF LF ReceiverReceiverReceiverReceiver
RF Tx RF Tx RF Tx RF Tx ControlControlControlControl
Clock ControlClock ControlClock ControlClock Control
Test I/FTest I/FTest I/FTest I/F
Pressure Pressure Pressure Pressure Sensor AFESensor AFESensor AFESensor AFE
LFINLFINLFINLFIN
LFINBLFINBLFINBLFINB
TVOTVOTVOTVO
RFOUTRFOUTRFOUTRFOUT
VOUTVOUTVOUTVOUT
AN
TA
NT
AN
TA
NT
AN
TA
NT
AN
TA
NT
LFLFLFLF----OSC & OSC & OSC & OSC & TimerTimerTimerTimer
G Sensor G Sensor G Sensor G Sensor AFEAFEAFEAFE
Temp. Sensor Temp. Sensor Temp. Sensor Temp. Sensor & AFE& AFE& AFE& AFE
Voltage Voltage Voltage Voltage SensorSensorSensorSensor&AFE&AFE&AFE&AFE
Agenda
• Background
– What is TPMS
– Direct & Indirect System
– Historical Background/ Regulation
• TI’s TPMS Module
– Pressure Sensing Technologies & Comparison
– Package with Ceramic Pressure Sensor Diaphragm
– System Level Block Diagram
– Device Configuration
– Key Features
• What’s Next
– Development Roadmap
– Future Technologies … More Integration/ Battery-less
• F/W Development Tools
• TI TPMS Business
Development Roadmap
Function,
Differentiators ALLALLALLALL ININININ ONEONEONEONE
TPMS Sensor IC Roadmap
BBBB1111TTTT
BBBB2222
CCCC
2-Axis G-Sensor、、、、
Low Power Dissipation
Position Recognition use LF
8051 MCU w/ OPT
Now
Lower Cost
Ext. G-Sensors
Battery-Less
2-Axis G-Sensor
Flash & FeRAM
Ceramic P-Sensor
MEMS G-Sensor
CCCC’’’’
DDDD
Ceramic Sensor
Ceramic Sensor
EEEE
Confidential
FutureProduction
CurrentCurrentCurrentCurrent
11.6mm x 11.6mm11.6mm x 11.6mm11.6mm x 11.6mm11.6mm x 11.6mm
Next GenerationNext GenerationNext GenerationNext Generation
7mm x 7mm7mm x 7mm7mm x 7mm7mm x 7mm
Future Technology – Battery less
– LF/RF Power Transfer Technology
• Extension of existing RFID Technology
• Cost up for Total System … TPMS Module = Less Cost/ Chassis more Cost
– Piezoelectric Generator
• Existing Concept
• Cost up and may be larger size for TPMS Module
• Reliable for more than 20-years?
– Electro Magnetic Generator
• More Cost for the implementation
• Difficulties to Mount for magnetic coupling
• Reliability issue on Magnet?
– Software approach using ABS Sensors
• Accuracy may not good enough compare to Direct System
• No additional cost
• Program change when changed the Tire?
• Cost : The biggest Barrier for Battery Less System Implementation
Agenda
• Background
– What is TPMS
– Direct & Indirect System
– Historical Background/ Regulation
• TI’s TPMS Module
– Pressure Sensing Technologies & Comparison
– Package with Ceramic Pressure Sensor Diaphragm
– System Level Block Diagram
– Device Configuration
– Key Features
• What’s Next
– Development Roadmap
– Future Technologies … More Integration/ Battery-less
• F/W Development Tools
• TI TPMS Business
FW Development Support Tools
• Provide the High Cost Performance Solution :– Mask ROM for smallest Chip size and more reliability
– OTP version for FW Development
• Keil u-Vision based Debug & Emulation Tools – Communication I/F and Evaluation Board for FW and detailed timing analysis
• Sample Code Module
FW Development System
Measurement EquipmentsMeasurement EquipmentsMeasurement EquipmentsMeasurement Equipments(Power Supply/ Multi-Meter/
Spectrum Analyzer/ Data Analyzer etc.)
USBUSBUSBUSB
(UART)(UART)(UART)(UART)
Support SW+
KeilμVisionDebugger/ Emulator
F/W Sample Modules
IF BOARDIF BOARDIF BOARDIF BOARD
Evaluation Evaluation Evaluation Evaluation Socket BoardSocket BoardSocket BoardSocket Board
(UART)(UART)(UART)(UART)TPMS TPMS TPMS TPMS ModuleModuleModuleModule
Agenda
• Background
– What is TPMS
– Direct & Indirect System
– Historical Background/ Regulation
• TI’s TPMS Module
– Pressure Sensing Technologies & Comparison
– Package with Ceramic Pressure Sensor Diaphragm
– System Level Block Diagram
– Device Configuration
– Key Features
• What’s Next
– Development Roadmap
– Future Technologies … More Integration/ Battery-less
• F/W Development Tools
• TI TPMS Business
TI TPMS Business
0000
5555
10101010
15151515
20202020
25252525
Yr03Yr03Yr03Yr03 Yr04Yr04Yr04Yr04 Yr05Yr05Yr05Yr05 Yr06Yr06Yr06Yr06 Yr07Yr07Yr07Yr07 Yr08Yr08Yr08Yr08 Yr09Yr09Yr09Yr09 Yr10Yr10Yr10Yr10 Yr11Yr11Yr11Yr11
CCCC
BBBB(OEM2,3)(OEM2,3)(OEM2,3)(OEM2,3)
B (OEM1)B (OEM1)B (OEM1)B (OEM1)
A (OEM1)A (OEM1)A (OEM1)A (OEM1)
Replace with C-type
(for OEM1,2,3 and Plus)M-Units
Thank You Very Much!
Back Up
Pressure Sensing & Data Transmitting Module
16-pin Ceramic with Pressure Sensor6.98mm x 6.98mm
� Easy to build up a Pressure Monitoring System with
minimum external passive components
� Integrated EEPROM enables to Calibrate the system to
achieve the Required Accuracy for Monitoring
� Tire Pressure Monitoring System (TPMS)
� Remote Pressure Monitoring System� All integrated for TPMS Sensor Module
� Ceramic Pressure Sensor integrated on Package• High Accuracy, Resolution and wide Measurement Range
• Range : 50 kPa ~ 637.5 kPa (0 ~ 1100 kPa (Absolute Max))
• Accuracy : +/- 7 kPa (@ -30℃℃℃℃ ~ 100℃℃℃℃)• Resolution: 1.25 kPa
• Strong to Chemical Environment
� Embedded 8051 Micro Controller• 16K-Bytes ROM
• 256-Bytes RAM
• OTP Version for System Debugging
• EEPROM for Sensor Calibration and Data storage
� Integrated RF Transmitter• Applicable FSK/ASK Modulated Transmission
• Programmable 315MHz and 434MHz RF Transmission
• RF Power Auto Gain Control, Frequency Auto Tuning
� Integrated LF Trigger Signal Detector
� Integrated Temperature and Battery Voltage Sensor
� In package 2-axis Accelerometer
� Ultra Low Power Consumption• 0.2uA (typtyptyptyp) in Stand-by (LF Oscillator operating)• 1.2mA(typ) in Measurement Mode
• 8.5mA(Max) in Transmitting (+5dBm)
VDDVDDVDDVDD
MCU 8051MCU 8051MCU 8051MCU 8051Code Memory :
16KBRAM: 128Byte
Ext RAM: 128ByteEEPROM: 7bit x 32
VREVREVREVREGGGG
Test IFTest IFTest IFTest IF
GNDGNDGNDGND
XTAXTAXTAXTALLLL
5555
G Sensor G Sensor G Sensor G Sensor AFEAFEAFEAFE
3333
Pressure Pressure Pressure Pressure SensorSensorSensorSensor
GGGGSensorSensorSensorSensor
Temp. Sensor Temp. Sensor Temp. Sensor Temp. Sensor & AFE& AFE& AFE& AFE
Voltage SensorVoltage SensorVoltage SensorVoltage Sensor&AFE&AFE&AFE&AFE
System Power System Power System Power System Power Control & Control & Control & Control & RegRegRegReg
LF ReceiverLF ReceiverLF ReceiverLF Receiver
RF Tx RF Tx RF Tx RF Tx ContorlContorlContorlContorl
Clock ControlClock ControlClock ControlClock Control
LFLFLFLF----OSC & TimerOSC & TimerOSC & TimerOSC & Timer
Test I/FTest I/FTest I/FTest I/F
Pressure Pressure Pressure Pressure Sensor AFESensor AFESensor AFESensor AFE
LFILFILFILFINNNNLFINBLFINBLFINBLFINB
TVOTVOTVOTVO
RFOUTRFOUTRFOUTRFOUT
VOUVOUVOUVOUTTTT
AN
TA
NT
AN
TA
NT
AN
TA
NT
AN
TA
NT
1TBD