Melexis MLX90808 Technical data

查询MLX90808LUF-2供应商

Features and Benefits

 Absolute Integrated Pressure sensor
 Less than 1% error range overall
 Programmable through the connector (3 pins)
 Trimmable offset and sensitivity
 Ratiometric output
 Rail-to-Rail output
 Output proportional to the applied pressure
 Diagnostics of broken supply wires and broken sensor
 Output protected against short-circuits at both battery terminals
 On-chip Signal Conditioning (single die solution)
 Different pressure ranges available

Application Examples

 Automotive applications (MAP, T-MAP, HVAC, …)
 Industrial applications
 Barometric Air Pressure

MLX90808

Absolute Integrated Pressure Sensor

Ordering Information

Part No. Temperature Suffix Package Code Option Description

MLX90808 L (-40°C to 150°C) UF (die on foil) - 2 3 to 7 Bar Pressure Span

1 Functional Diagram

2

General Description

The MLX90808 is an integrated absolute
pressure sensor realised in CMOS
technology. It consists of an analog signal
chain that interacts with the digital core and
on-chip temperature sensor in order to
provide uniform overall sensing
characteristics after calibration and to cancel
the temperature related parameter drifts.
The output is proportional to the applied
pressure with an adjustable slope and offset.
The chip is ratiometric and goes rail-to-rail
with a 1mA source and sink capability.

3901090808 Page 1 of 8 Data Sheet
Rev 001 Feb 08

MLX90808

Absolute Integrated Pressure Sensor

Table of Contents

1 Functional Diagram........................................................................................................... 1

2 General Description .......................................................................................................... 1

3 Absolute Maximum Ratings .............................................................................................. 3

4 General Electrical Specifications....................................................................................... 3

5 Diagnostic features ........................................................................................................... 4

6 Detailed General Description ............................................................................................ 4

7 Unique Features ............................................................................................................... 5

8 Application Information ..................................................................................................... 5

9 Programming and Calibration ........................................................................................... 6

9.1 Programming of the Temporary Memory of 90808 ..................................................... 6

9.2 Zapping of the 90808 .................................................................................................. 7

10 Disclaimer ....................................................................................................................... 8

3901090808 Page 2 of 8 Data Sheet
Rev 001 Feb 08

Supply current with output shorted to 0V .. 16V

IDD 100 mA

°C

°C

°C

3 Absolute Maximum Ratings

MLX90808

Absolute Integrated Pressure Sensor

Parameter Symb

Min Value Max Value Units

ol

Supply Voltage (overvoltage) VDD -14 16 V
Supply Voltage (operating) VDD 4.5 5.5 V
Supply Current, I
Output Voltage, V

with V

DD

out

= 16 V IDD 25 mA

DD

V

-0.5 16 V

out

Supply Current limit, reverse polarity IDD 160 mA
Programming Temperature Range (ZAP cells) TP -20 100
Operating Temperature Range TA -40 140
Storage Temperature Range TS - 50 150
ESD Sensitivity (AEC Q100 002) -2 2 kV

Table 1: Absolute maximum ratings

Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum­rated conditions for extended periods may affect device reliability.

4 General Electrical Specifications

DC Operating Parameters TA = -40 oC to 140 oC, VDD = 5V (unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Units

Supply Voltage Vdd Operating 4.5 5 5.5 V

V

Supply Current Idd
Output Current Capability I
output @ low pressure V
output @ full scale pressure V
Low Clamping level V
High Clamping level V
Linearity error V
Ratiometricity error V
Programming Supply V
Zapping Supply V
Zapping Temperature T

out

out

out

6.5 8.5 % Vod

out

91 93.5 % Vod

out

-0.5 0.5 % Vod

out

-0.3 0.3 % Vod

out

10 10.5 V

cc prog

15.5 16 V

zap

- 20 100

zap

Lifetime 15 Year
Power-up time
Power-up time
Response time 0% / 63% Trp 1 ms
Response time 10% / 90% T

rp 10 – 90

Stabilization time Ts 3 ms
Pressure accuracy 1 % FS

Table 2: Electrical specifications

3901090808 Page 3 of 8 Data Sheet
Rev 001 Feb 08

= 5 V ± 10% , excluding output current

dd

V

= 5 V

dd

V

= 5 V

dd

V

= 5 V

dd

T = 0 oC … 85 oC
T < 0 oC or T > 85 oC

4 7 10 mA
1 mA

0.46 0.5 0.54 V

4.46 4.5 4.54 V

3.5 ms
5 ms

1.5 ms

o

C