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MLX92241-BAA-xxx
2-Wire Hall Effect Switch
Datasheet
1. Features and Benefits
Wide operating voltage range: from 2.7V to
24V
Integrated self-diagnostic functions activating
dedicated Safe Mode
Reverse supply voltage protection
Under-Voltage Lockout protection
Integrated capacitor for PCB less designs
HW component Qualified according to
ISO26262-8:13 for use in safety critical
systems.
2. Application Examples
Automotive, Consumer and Industrial
Brake light switch
Window lifter
Door lock
Seatbelt buckle
Seat positioning
Transmission applications
Electrical power steering
3. Ordering Information
Product Code
MLX92241
MLX92241
MLX92241
Temperature Code
L
L
L
Table 1: Ordering information
Package Code
SE
UA
UA
Option Code
BAA-0xx
BAA-0xx
BAA-1xx
Packing form Code
RE
BU
BU
Legend:
Temperature Code:
Package Code:
Option Code:
Packing Form:
Ordering example:
L(-40°C to 150°C)
UA=TO92-3L / SE=TSOT-3L
BAA-0xx => 2 wire Hall Effect Switch
BAA-1xx => 2 wire Hall Effect Switch with integrated capacitor
BU=Bulk | RE = Reel | CA = Ammopack delivery | CR=Papertape on Reel
MLX92241LUA-BAA-0xx-BU
Rev.010 Sep 2019
390109224108
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MLX92241-BAA-xxx
2-Wire Hall Effect Switch
Datasheet
4. Functional Diagram
VDD
TEST
Voltage Regulator
with Reverse Polarity
Protection
Temperature
Compensation
Bop/Brp
reference
Under-
Voltage
Lockout
Thermal
Protection
Switched
Hall
Plate
CDS
Amplifier
Output
Current Sink
VDD EoL
programming
Control
GND
EEPROM
5. General Description
The Melexis MLX92241 is based on the Melexis Hall-effect latest platform, designed in mixed signal submicron
CMOS technology.
The device integrates a voltage regulator, Hall sensor with advanced offset cancellation system and a current sink-
configured output driver and integrated capacitor all in a single package.
Based on the proven in use platform, the magnetic core is using an improved offset cancellation system allowing
faster and more accurate processing while being temperature insensitive and stress independent. In addition a
pre-programmable temperature coefficient is implemented to compensate the natural behavior of certain types
of magnets becoming weaker with rise in temperature.
The included voltage regulator operates from 2.7 to 24V, hence covering a wide range of applications. With the
built-in reverse voltage protection, a serial resistor or diode on the supply line is not required so that even remote
sensors can be specified for low voltage operation down to 2.7V while being reverse voltage tolerant.
In an event of a drop below the minimum supply voltage during operation, the under-voltage lock-out protection
will automatically freeze the device, preventing the electrical perturbation to affect the magnetic measurement
circuitry. The output current state is therefore only updated based on a proper and accurate magnetic
measurement result.
The two-wire interface not only saves one wire, but also allows implementation of diagnostic functions as reverse
polarity connection and malfunction detection.
Rev.010 Sep 2019
390109224108
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MLX92241-BAA-xxx
2-Wire Hall Effect Switch
Datasheet
The on-chip thermal protection also switches off the output if the junction temperature increases above an
abnormally high threshold. It will automatically recover once the temperature decreases below a safe value.
The MLX92241 is delivered in a Green and RoHS compliant Plastic Single-in-Line (TO-92) for through-hole mount,
or PCB-less design with integrated capacitor or in 3-pin Thin Small Outline Transistor (TSOT) for surface mount
process.
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MLX92241-BAA-xxx
2-Wire Hall Effect Switch
Datasheet
Contents
1. Features and Benefits ............................................................................................................................ 1
2. Application Examples............................................................................................................................. 1
3. Ordering Information............................................................................................................................. 1
4. Functional Diagram................................................................................................................................ 2
5. General Description ............................................................................................................................... 2
6. Glossary of Terms .................................................................................................................................. 6
7. Absolute Maximum Ratings ................................................................................................................... 6
8. General Electrical Specifications ............................................................................................................ 7
9. Magnetic Specifications ......................................................................................................................... 8
9.1. MLX92241LSE-BAA-007 ..................................................................................................................... 8
9.2. MLX92241LSE-BAA-019 ..................................................................................................................... 8
9.3. MLX92241LSE-BAA-021 ..................................................................................................................... 8
9.4. MLX92241LSE-BAA-023 ..................................................................................................................... 9
9.5. MLX92241LSE-BAA-024 ..................................................................................................................... 9
9.6. MLX92241LSE-BAA-025().................................................................................................................... 9
9.7. MLX92241LSE-BAA-027 ................................................................................................................... 10
9.8. MLX92241LUA-BAA-101 .................................................................................................................. 10
9.9. MLX92241LUA-BAA-103 .................................................................................................................. 10
9.10. MLX92241LUA-BAA-106 ................................................................................................................ 11
9.11. MLX92241LUA-BAA-107 ................................................................................................................ 11
9.12. MLX92241LUA-BAA-108 ................................................................................................................ 11
9.13. MLX92241LUA-BAA-110 ................................................................................................................ 11
9.14. MLX92241LUA-BAA-111 ................................................................................................................ 12
9.15. MLX92241LUA-BAA-112 ................................................................................................................ 12
9.16. MLX92241LUA-BAA-113 ................................................................................................................ 12
9.17. MLX92241LUA-BAA-114 ................................................................................................................ 13
9.18. MLX92241LSE-BAA-032 ................................................................................................................. 13
9.19. MLX92241LUA-BAA-033 ................................................................................................................ 13
9.20. MLX92241LSE-BAA-034 ................................................................................................................. 13
10. Magnetic Behavior............................................................................................................................. 15
11. Application Information ..................................................................................................................... 16
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MLX92241-BAA-xxx
2-Wire Hall Effect Switch
Datasheet
11.1. Typical Automotive Application Circuit......................................................................................... 16
11.2. Automotive and Harsh, Noisy Environments Application Circuit ................................................ 16
11.3. Power Derating Curve.................................................................................................................... 17
11.4. Voltage Derating Curve.................................................................................................................. 17
12. Standard information regarding manufacturability of Melexis products with different soldering
processes ............................................................................................................................................ 18
13. ESD Precautions................................................................................................................................. 18
14. Package Information.......................................................................................................................... 19
14.1. SE (TSOT-3L) Package Information ................................................................................................ 19
14.2. UA (TO92 - 3L) Package Information............................................................................................. 20
14.3. UA (TO92 - 3L) with integrated capacitor Package Information ................................................. 21
15. Contact .............................................................................................................................................. 22
16. Disclaimer .......................................................................................................................................... 22
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