MLX90242
Linear Hall Effect Sensor
Features and Benefits
Quad Switched Hall Plate / Chopper
Stabilized Amplifier
Ratiometric Output for A/D Interface
Low Quiescent Voltage Thermal Drift
Small Plastic Packages (TSOT, TO-92)
RoHS compliant TSOT package
Applications
Linear Position Sensing
Rotary Position Sensing
Current Sensing
Ordering information
Product Code Temperature Code
MLX90242
MLX90242
MLX90242
MLX90242
MLX90242
MLX90242
L
L
L
E
E
E
Package Code
UA
UA
UC
SE
SE
UC
Option Code
GAA-000
GAA-000
GAA-000
GAA-000
GDA-000
GAA-000
Packing Form
Code
BU
RE
WB
RE
RE
WB
Legend:
Temperature Code:
Package Code:
Option Code:
Packing Form:
Ordering example:
L for Temperature Range -40°C to 150°C
E for Temperature Range -40°C to 85°C
SE for TSOT, UA for TO-92, UC for Die on wafer
AAA-xxx: Die version
xxx-000: Standard version
RE for Reel
BU for Bulk
WB for Waferbox
MLX90242LUA-GAA-000-RE
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3901090242
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MLX90242
Linear Hall Effect Sensor
Contents
Features and Benefits................................................................................................................................ 1
Applications............................................................................................................................................... 1
Ordering information ................................................................................................................................ 1
1. Functional Diagram ............................................................................................................................... 3
2. Description ............................................................................................................................................ 3
3. Glossary of Terms .................................................................................................................................. 3
4. Absolute Maximum Ratings ................................................................................................................... 3
5. MLX90242 Electrical Specifications........................................................................................................ 4
6. MLX90242 Magnetic Specifications ....................................................................................................... 4
7. Applications Information ....................................................................................................................... 5
8. Standard Information ............................................................................................................................ 6
9. ESD Precautions..................................................................................................................................... 6
10. Package Information............................................................................................................................ 7
10.1. UA Package........................................................................................................................................ 7
10.2. TSOT Package (RoHS compliant) ...................................................................................................... 8
11. Contact ................................................................................................................................................ 9
12. Disclaimer ............................................................................................................................................ 9
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MLX90242
Linear Hall Effect Sensor
1. Functional Diagram
2. Description
The MLX90242 is a CMOS Linear Hall Effect
sensor IC. It possesses active error correction
circuitry which virtually eliminates the offset
errors normally associated with analog Hall Effect
devices.
The ratiometric output voltage is proportional to
the supply voltage. When using the supply voltage
as a reference for an A/D converter, fluctuations
of ±10% in supply voltage will not affect accuracy.
For a positive slope, the voltage at the output will
increase as a South magnetic field is applied to
the branded face of the MLX90242. Conversely,
the voltage output will decrease in the presence
of a North magnetic field. For a negative slope,
the voltage at the output will increase as a North
magnetic field is applied to the branded face of
the MLX90242. Conversely, the voltage output will
decrease in the presence of a South magnetic
field.
3. Glossary of Terms
- Gauss, Tesla: Two units to quantify a magnetic flux density. Conversion: 1 mT = 10 Gauss
- Voq: Quiescent output voltage. Output voltage for B = 0mT.
4. Absolute Maximum Ratings
Supply Voltage (Over Voltage), V
DD
Output Current Short to Vdd
Output Current Short to Vss
Output Pin Short to Vss Pin
Output Over Voltage
Operating Temperature Range, T
A
Storage Temperature Range, T
S
Maximun Junction Temp, T
J
Magnetic Flux Density
7.0 V
5 mA
0.5 mA
Infinite
8V
-40°C to 150°C
-55°C to 150°C
170°C
Infinite
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute -maximum-
rated conditions for extended periods may affect device reliability.
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MLX90242
Linear Hall Effect Sensor
5. MLX90242 Electrical Specifications
DC Operating Parameters. L: T
A
= -40 to 150°C, E: T
A
= -40 to 85°C
V
DD
= 5.0V (Unless otherwise specified)
Parameter
Supply Voltage
Supply Current
Output Current
Quiescent Output Voltage
Output Voltage
Output Voltage
Response Time
Noise (RMS)
Output Resistance
Linearity Error
ROUT
Le
Symbol
VDD
IDD
IOUT
VOQ
VOH
VOL
tr
Test Conditions
Operating
B = 0mT, VDD = 5V, IOUT =
0mA
VDD = 5V
Pull-up = 5 kΩ, Pull-down =
50 kΩ
B = 0mT, TA = 25°C
VDD = 5V, IOUT = -1.0 mA
VDD = 5V, IOUT = 0.1 mA
VDD=5V,Vout from VOQ to
VOH/VOL
without load
Min
4.5
1.8
-1.0
2.4
4.75
Typ
5.0
2.5
-
2.5
Max
5.5
4.5
0.1
2.6
Units
V
mA
mA
V
V
0.25
400
5
20
0.5
800
10
V
µS
mV
Ω
%Vdd
6. MLX90242 Magnetic Specifications
V
DD
= 5.0V (Unless otherwise specified)
MLX90242
Parameter
Thermal Voq Drift (1)
(mV)
Sensitivity, TA = 25° C
(mV/mT)
TC of Sensitivity
(ppm/°C)
S
TCS
33.2
430
39.0
680
44.9
930
11.5
15
680 (2)
17.3
33.2
39.0
680 (2)
44.9
ΔΤVOQ
-25
25
±25 (2)
±25 (2)
MLX90242
ESE-GDA-000
Min
Typ
Max
MLX90242
ESE-GAA-000
Min
Typ
Max
Symbol
LUA-GAA-000
Min
Typ
Max
(1)
B = 0 Gauss
(2)
For TSOT package, TC of Sensitivity and Thermal Voq Drift are not fully tested and therefore cannot be
specified. Characterization and statistic data can be provided by Melexis upon request.
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MLX90242
Linear Hall Effect Sensor
7. Applications Information
C1 and C2 values can be trimmed to satisfied EMC requirements according to the environment (PCB, connectors,...).
The output rise time is affected for large capacitor C2, depending of the couple R1 and C2.
REVISION 028 - AUGUST 28, 2017
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