MPX4105

Features:

• 1.7% Maximum Error over 0° to 85°C
• Specifically Designed for Intake Manifold Absolute Pressure Sensing in Engine Control Systems
• Ideally Suited for Microprocessor Interfacing
• Patented Silicon Shear Stress Strain Gauge
• Temperature Compensated over 40°C to +125°C
• Durable Epoxy Unibody Element
• Ideal for NonAutomotive Applications
• Consult Factory for Top Piston Fit Package Availability


Application

• Manifold Sensing for Automotive Systems


Specifications

Rating	Symbol	Value	Unit
Overpressure(2) (P1 > P2)	Pmax	400	kPa
Burst Pressure(2) (P1> P2)	Pburst	1000	kPa
Storage Temperature	Tstg	40 to +125	°C
Operating Temperature	TA	40 to +125	°C

1. TC = 25°C unless otherwise noted.
2. Exposure beyond the specified limits may cause permanent damage or degradation to the device.


Description

The Motorola MPX4105 series Manifold Absolute Pressure (MAP) sensor for engine control is designed to sense absolute air pressure within the intake manifold. This measurement of MPX4105 series can be used to compute the amount of fuel required for each cylinder. The small form factor and high reliability of onchip integration makes the Motorola MAP sensor a logical and economical choice for automotive system designers.

The MPX4105 series piezoresistive transducer is a stateoftheart, monolithic, signal conditioned silicon pressure sensor. MPX4105 series with its patented transducer, combines advanced micromachining techniques, thin film metallization, and bipolar semiconductor processing to provide an accurate, high level analog output signal that is proportional to applied pressure.

Figure 1 shows a block diagram of the internal circuitry integrated on a pressure sensor chip.