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Pressure Sensor Modules for Natural Gas Vehicles
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Hybrid package pressure sensor is a ssop-hybrid device including a piezoresistive pressure sensor and a signal conditioning circuit. The sensor has the features of the small form factor, high reliability and high accuracy. This temperature compensated and calibrated sensor provides an accurate, high level analog output signal that is proportional to applied pressure. The pressure rang of the sensor cell is 20~400 kPa absolute pressure. The supply voltage is 5±0.5V，the typical supply current is 2.5mA.
Features
- Maximum error of 1% in the range of 0~85°C
- Temperature compensation range -40~125°C
- Small size
- High reliability, low drift
Technical Index
Table 1. Operating Characteristics (VS = 5.0 Vdc, TA = 25°C, P1 > P2 unless otherwise noted.)
|
Characteristic |
Symbol |
Min |
Typ |
Max |
Unit |
|
Pressure Range |
Pop |
20 |
--- |
400 |
kPa |
|
Supply Voltage |
VS |
4.5 |
5.0 |
5.5 |
Vdc |
|
Supply Current |
IO |
--- |
2.5 |
3 |
mAdc |
|
Minimum Pressure Offset @ VS = 5.0 Volts(0 to85℃) |
VOff |
0.131 |
0.2 |
0.269 |
Vdc |
|
Full Scale Output @ VS = 5.0 Volts(0 to 85℃) |
VFSO |
4.731 |
4.8 |
4.869 |
Vdc |
|
Full Scale Span @ VS = 5.0 Volts (0 to 85℃) |
VFSS |
4.462 |
4.600 |
4.738 |
Vdc |
|
Accuracy (0 to 85℃) |
--- |
--- |
--- |
± 1.5 |
% VFSS |
|
Sensitivity |
V/P |
--- |
12.1 |
--- |
mV/kPa |
|
Response Time(6) |
tR |
--- |
2.0 |
--- |
mS |
Table2. Maximum rating
|
Name of Parameters |
Symbol |
Max. |
Unit |
|
Maximum pressure |
PMAX |
1200 |
kPa |
|
Maximum voltage |
Vmax |
-0.3 to +10.5 |
Vdc |
|
Maximum current |
Imax |
14 |
mAdc |
|
ESD Protection (JEDEC EIA/JESD22-A114) |
|
±4 |
kV |
|
Storage temperature |
TSTG |
-50 to 135 |
℃ |
|
Operating temperature |
TA |
-40 to 125 |
℃ |
|
Maximum Output Current |
IO+ |
0.5 |
mAdc |
|
Maximum input current |
IO- |
-0.5 |
mAdc |
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