Effect Sensor. MLX90251 Datasheet

MLX90251 Sensor. Datasheet pdf. Equivalent

Part MLX90251
Description Programmable Linear Hall Effect Sensor
Feature MLX90251 Programmable Linear Hall Effect Sensor Datasheet 1. Features and Benefits 2. Application .
Manufacture Melexis
Total Page 21 Pages
Datasheet
Download MLX90251 Datasheet



MLX90251
MLX90251
Programmable Linear Hall Effect Sensor
Datasheet
1. Features and Benefits
2. Application Examples
Analog Signal Processing
Quad Switched Hall Plate
Chopper Stabilized Amplifier
Linear Analog Ratiometric Output Voltage
Programmable Output Quiescent Voltage
-100%VDD…200%VDD Range
Programmable Magnetic Sensitivity
Programmable Low Pass Filter
Programmable Clamping Voltage
Programmable Temperature Compensation
Melexis ID Number
Programmable Customer ID Number
Lead-free package
(VOQ)
Ordering Information
Product Code
MLX90251
MLX90251
MLX90251
MLX90251
MLX90251
MLX90251
MLX90251
MLX90251
Temperature Code
E
E
E
E
L
L
L
L
Package Code
VA
VA
VA
VA
VA
VA
VA
VA
Linear Position Sensing
Rotary Position Sensing
Current Sensing
Magnetic Field Measurement
Option Code
FAA-000
FAA-100
FAA-200
FAA-300
FAA-000
FAA-100
FAA-200
FAA-300
Packing Form Code
BU
BU
BU
BU
BU
BU
BU
BU
Legend:
Temperature Code:
Package Code:
Option Code:
Packing Form:
L for Temperature Range -40°C to 150°C
E for Temperature Range -40°C to 85°C
VA for Plastic Single in Line thickness 1.1 -1.2mm
See section 10.4
BU for Bulk
Ordering example:
MLX90251LVA-FAA-000-BU
REVISION 014 - NOVEMBER 2017
3901090251
Page 1



MLX90251
MLX90251
Programmable Linear Hall Effect Sensor
Datasheet
3. Functional Diagram
Supply
1
OPA Filter
OPA
OPA 4
3
Shift Register
2
Program
decoder
EEPROM
Figure 1-1 Functional Diagram
VDD
Test
VSS (Ground)
VOUT
Table 1: Pin out
Pin Out
VA package
1
2
3
4
Table of Contents
4. General Description
The MLX90251 is a CMOS Programmable, Ratiometric
Linear Hall Effect sensor IC. The linear output voltage is
proportional to the magnetic flux density. The
ratiometric output voltage is proportional to the
supply voltage. The MLX90251 possesses active error
correction circuitry, which virtually eliminates the
offset errors normally associated with analog Hall
Effect devices. All the parameters of the MLX90251
transfer characteristic are fully programmable. The
VOQ (VOUT @ B = 0 Gauss), the Sensitivity, the slope
polarity, the Output Clamping levels, the thermal
Sensitivity drift, the internal bias point and a low-pass
filter are all programmable in end-user applications.
The MLX90251 has a very stable thermal
compensation for both the Sensitivity and the VOQ over
a broad temperature range. For traceability purpose
the MLX90251 will carry a unique ID number
programmed by Melexis and 24 bits of EEPROM
memory are allocated for a user programmed serial
number.
1. Features and Benefits ........................................................................................................................1
2. Application Examples .........................................................................................................................1
3. Functional Diagram ............................................................................................................................2
4. General Description ...........................................................................................................................2
5. Glossary of Terms...............................................................................................................................4
6. Maximum Ratings ..............................................................................................................................4
7. Detailed Block Diagram ......................................................................................................................5
7.1. Detailed Description ........................................................................................................................ 5
8. General Electrical Specifications.........................................................................................................6
9. Programming Range...........................................................................................................................7
10. Timing Specifications........................................................................................................................7
11. Accuracy...........................................................................................................................................7
12. Programmable Features...................................................................................................................8
12.1. Output Quiescent Voltage (VOQ) ................................................................................................... 9
12.2. Thermal VOQ Drift (DRIFT).............................................................................................................. 9
12.3. Sensitivity, Rough Gain and Fine Gain .......................................................................................... 9
12.4. Sensitivity Range Selection.......................................................................................................... 10
12.5. Sensitivity Polarity (INVERT)........................................................................................................ 13
REVISION 014 - NOVEMBER 2017
3901090251
Page 2





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