Current Sensor. MLX91209 Datasheet

MLX91209 Sensor. Datasheet pdf. Equivalent

MLX91209 Datasheet
Recommendation MLX91209 Datasheet
Part MLX91209
Description Hall Current Sensor
Feature MLX91209; MLX91209 Hall Current Sensor IC in VA package 1. Features and Benefits Programmable high speed curr.
Manufacture Melexis
Datasheet
Download MLX91209 Datasheet




Melexis MLX91209
MLX91209
Hall Current Sensor IC in VA package
1. Features and Benefits
Programmable high speed current sensor
Programmable linear transfer characteristic
Selectable analog ratiometric output
Measurement range from 15 to 450mT
Single die VA package RoHS compliant
Wideband: DC to 200kHz
Short response time
Lead free component, suitable for lead free
soldering profile 260°C (target), MSL1
AEC-Q100 Automotive Qualified
2. Application Examples
Inverter applications in HEV and EV
BLDC motor current monitoring
AC/DC converters
Over current detection circuit
3. General Description
The MLX91209 is a monolithic programmable Hall sensor IC featuring the planar Hall technology, which is
sensitive to the flux density applied orthogonally to the IC surface. The sensor provides an output signal
proportional to the applied magnetic flux density and is preferably suited for current measurement.
The transfer characteristic of the MLX91209 is programmable (offset, gain). The linear analog output is designed
for applications where a very fast response is required, such as inverter applications.
In a typical application, the sensor is used in combination with a ring shaped soft ferromagnetic core. The Hall IC
is placed in a small air gap and the current conductor is passed through the inner part of the ferromagnetic ring.
The ring concentrates and amplifies the magnetic flux on the Hall sensor IC, which generates an output voltage
proportional to the current flowing in the conductor.
4. Ordering Information
Product
Temperature Package Option Code Packing Form
MLX91209 L (-40°C to 150°C)
MLX91209 L (-40°C to 150°C)
MLX91209 L (-40°C to 150°C)
MLX91209 L (-40°C to 150°C)
Table 1: Ordering Information
VA
VA
VA
VA
CAA - 000
CAA - 001
CAA - 002
CAA - 003
RE
RE
RE
RE
Default Sensitivity
mV/mT
50
15
7.3
19
Legend:
Temperature Code:
Package Code:
Option Code:
Packing Form:
Ordering Example:
390109120901
Rev.010
L: from -40°C to 150°C
“VA” for SIP 4L (single in-line package)
CAA: Sensitivity Range 5-150mV/mT
“RE” for Reel
MLX91209LVA-CAA-000-RE
Page 1 of 15
MLX91209
June 2018



Melexis MLX91209
MLX91209
Hall Current Sensor IC in VA package
Table 2: Legend for Ordering Information
5. Functional Diagram
Figure 1: Block Diagram
6. Glossary of Terms
Terms
Tesla
TC
NC
ADC
DAC
LSB
MSB
DNL
INL
IMC
PTC
Table 3: Glossary of Terms
Definition
Units for the magnetic flux density, 1 mT = 10 Gauss
Temperature Coefficient in ppm/deg C
Not Connected
Analog to Digital Converter
Digital to Analog Converter
Least Significant Bit
Most Significant Bit
Differential Non Linearity
Integral Non Linearity
Integrated Magneto Concentrator (IMC®)
Programming Through Connector
390109120901
Rev.010
Page 2 of 15
MLX91209
June 2018



Melexis MLX91209
MLX91209
Hall Current Sensor IC in VA package
Contents
1. Features and Benefits.......................................................................................................................................1
2. Application Examples .......................................................................................................................................1
3. General Description..........................................................................................................................................1
4. Ordering Information .......................................................................................................................................1
5. Functional Diagram ..........................................................................................................................................2
6. Glossary of Terms.............................................................................................................................................2
7. Absolute Maximum Ratings..............................................................................................................................4
8. Pin Definitions and Descriptions.......................................................................................................................4
9. General Electrical Specifications.......................................................................................................................5
10. Magnetic specification ...................................................................................................................................5
10.1. Sensor active measurement direction....................................................................................................6
11. Analog output specification............................................................................................................................6
11.1. Timing specification................................................................................................................................6
11.2. Accuracy specification ............................................................................................................................7
11.3. Remarks to the achievable accuracy ......................................................................................................7
12. Programmable items ......................................................................................................................................8
12.1. Parameter table......................................................................................................................................8
12.2. Sensitivity programming (RG, FG) ..........................................................................................................8
12.3. Offset / output quiescent voltage programming (VOQ) ........................................................................8
12.4. Output ratiometry (ENRATIO) ................................................................................................................9
12.5. Sensitivity temperature drift programming (TC1, TC2COLD, TC2HOT) ..................................................9
12.6. Offset temperature drift programming (OFFDR2C, OFFDR2H) ..............................................................9
12.7. Noise filter (NOISEFILT)...........................................................................................................................9
12.8. Identification code (ID) ...........................................................................................................................9
13. Self-diagnostic ..............................................................................................................................................10
14. Recommended Application Diagrams...........................................................................................................11
14.1. Resistor and capacitor values ...............................................................................................................11
14.2. Pull down resistor for diagnostic low ...................................................................................................11
15. Typical performance.....................................................................................................................................12
16. Standard information regarding manufacturability of Melexis products with different soldering processes.13
17. ESD Precautions ...........................................................................................................................................13
18. FAQ ..............................................................................................................................................................14
19. Package Information ....................................................................................................................................14
19.1. VA / SIP 4L (single in-line package).......................................................................................................14
20. Contact.........................................................................................................................................................15
21. Disclaimer.....................................................................................................................................................15
390109120901
Rev.010
Page 3 of 15
MLX91209
June 2018







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