NPX1 NovaSensor Sensors The NPX1 sensor represents the next generation Features of Remote Tire Pressure Monitoring (RTPM). 12 bit ADC NPX1 sensor adds a silicon pressure sensor, a 8-bit RISC processor, and an LF-input stage to 4k byte flash (E-ROM) for user application meet market demands for flexible, customer specific behavior/solutions and overall system 4K ROM for library routines cost reduction. 128 byte RAM A programmable version of the sensor is available, allowing the customer to download the 128 byte EEPROM application code in an electrically programmable ROM version. This sensor is intended for Battery managementminimizing power developing the application specific program. consumption In order to ensure high reliability, the NPX1 sensor has the measurement routines (pressure, Measure and compensate pressure, temperature, and supply voltage) implemented in ROM. Routines for LF reception and UHF Media compatibility with tire pressure media transmission are also implemented in ROM. 450, 700, and 1400 kPa absolute pressure ranges Custom ranges are available On chip temperature sensor On chip temperature shut down Amphenol Advanced SensorsNPX1 Specifications General Operating Temperature -40F to 257F (-40C to 125C) 3.0 .12 Storage Temperature 10.3 6.0 .41 .24 -67F to 257F (-55C to 125C) Battery Supply Voltage 2.1 to 3.6 V (3.0 V typical) Supply Current 2.8 600 nA typical power down current at 3.6 V .11 Pressure Ranges 9.5 100 to 450, 100 to 700, 0 to 1400 is typical .37 450 kPa Resolution 3.2 1.37 kPa/LSB (450 kPa to 100 kPa/255) .13 1.5 -40F to 257F (-40C to 125C) .06 1.27 .05 700 kPa Resolution 0.45 .018 2.35 kPa/LSB (700 kPa to 100 kPa/255) 0.72 -40F to 257F (-40C to 125C) .028 1400 kPa Resolution 5.49 kPa/LSB (1400 kPa to 0 kPa/255) C L -40F to 257F (-40C to 125C) Over Pressure 10x 1.0 0.15 Pressure Measurement 0.2 .04 .01 .008 Measurement Accuracy (2.1 to 3.6 V) NPX1 dimensions in mm -6 to 6 LSB (6Fcapability), 32F to 122F (0C to 50C) -8 to 8 LSB, -40F to 257F (-40C to 125 C) Pressure Measurement Charge Consumption (All Pressure Ranges) 3.2 micro-coulombs 77F (25C), 3V Measurement Accuracy (2.1 to 3.6 V) -6 to 6 LSB (6 capability), 32F to 122F (0C to 50C) -8 to 8 LSB, -40F to 257F (-40C to 125 C) Battery Voltage Measurement 6 LSB, -40F to 257F (-40C to 125C) 1 LSB = 10.8 mV/LSB Charge Consumption (All Pressure Ranges) 0.4 micro-coulombs charge consumption 3.2 micro-coulombs 77F (25C), 3V Battery Voltage Measurement 6 LSB, -40F to 257F (-40C to 125C) 1 LSB = 10.8 mV/LSB 0.4 micro-coulombs charge consumption