MLX92242LUA-AAA-100-BU 数据手册
MLX92242
2-Wire EoL programmable Hall Effect Latch/Switch
1. Features and Benefits
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
2. Application Examples
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
▪
Wide operating voltage range: from
2.7V to 24V
Maximum application flexibility by reprogramming of all sensor functions
Customer End-of-Line programming via
VDD pin in the application module for
system design optimization
Lateral sensing by IMC technology
Wide programmable magnetic
Latch/Switch range
Programmable magnetic hysteresis,
active pole, output polarity
Programmable permanent magnet
Temperature Coefficient compensation
from 0 to -2000ppm/°C
Integrated self-diagnostic functions
activating dedicated Safe Mode
Reverse supply voltage protection
Under-Voltage Lockout protection
Thermal protection
Integrated capacitor for PCB less
designs
HW component Qualified according to
ISO26262-8:13 for use in safety critical
systems
Automotive, Consumer and Industrial
Wiper motor
Brake light switch
Window lifter
Door lock
Seatbelt buckle
Seat positioning
Sunroof/Tailgate opener
Transmission applications
Electrical power steering
Speed sensing (motorcycles)
3. Ordering Information
Product Code
Temperature Code
Package Code
Option Code
Packing Form Code
MLX92242
L
UA
AAA-000
BU
MLX92242
L
SE
AAA-000
RE
MLX92242
L
UA
AAA-100
BU
MLX92242
L
SE
AAA-200
RE
MLX92242
L
UA
AAA-300
BU
Legend:
Temperature Code:
Package Code:
Option Code:
Packing Form:
Ordering example:
REVISION 8 – SEPTEMBER 2021
3901092242
L(-40°C to 150°C)
UA = TO92-3L | SE = TSOT-3L
000 => Perpendicular sensitive
100 => Integrated capacitor (UA package only)
200 => IMC (SE package only)
300 => Integrated capacitor and IMC (UA package only)
BU = Bulk | RE = Reel | CA=Papertape in Ammopack | CR=Papertape on Reel
MLX92242LUA-AAA-x00-BU
Page 1 of 17
MLX92242
2-Wire EoL programmable Hall Effect Latch/Switch
4. Functional Diagram
VDD
Voltage Regulator
with Reverse Polarity
Protection
TEST
Temperature
Compensation
Switched
Hall
Plate
UnderVoltage
Lockout
Bop/Brp
reference
Thermal
Protection
Output
Current Sink
CDS
Amplifier
VDD EoL
programming
Control
EEPROM
GND
5. General Description
The Melexis MLX92242 is based on the Melexis Hall-effect switch 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.
Lateral sensing option is available by using the Melexis IMC technology.
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.
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 MLX92242 is delivered in a Green and RoHS compliant Plastic Single-in-Line (TO-92 flat) for through-hole
mount, or PCB-less design with integrated capacitor or in 3-pin Thin Small Outline Transistor (TSOT) for surface
mount process.
REVISION 8 – SEPTEMBER 2021
3901092242
Page 2 of 17
MLX92242
2-Wire EoL programmable Hall Effect Latch/Switch
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................................................................................................................................... 4
7. Absolute Maximum Ratings.................................................................................................................... 4
8. General Electrical Specifications............................................................................................................. 5
9. Magnetic Specifications ......................................................................................................................... 6
9.1. MLX92242LUA-AAA-000, MLX92242LSE-AAA-000 and MLX92242LUA-AAA-100 ...........................6
9.2. MLX92242LSE-AAA-200 and MLX92242LUA-AAA-300 .....................................................................7
10. Magnetic Behavior ............................................................................................................................... 9
10.1. Latch sensor ......................................................................................................................................9
10.2. Unipolar Switch sensor .....................................................................................................................9
11. Application Information ..................................................................................................................... 10
11.1. Typical Automotive Application Circuit......................................................................................... 10
11.2. Automotive and Harsh, Noisy Environments Application Circuit ................................................ 10
11.3. Power Dissipation Derating Curve ................................................................................................ 11
11.4. Voltage Derating Curve .................................................................................................................. 11
12. Standard information regarding manufacturability of Melexis products ............................................ 12
13. ESD Precautions ................................................................................................................................. 12
14. Package Information .......................................................................................................................... 13
14.1. TSOT-3L (SE Package) ..................................................................................................................... 13
14.2. TO92-3L (UA Package) ................................................................................................................... 15
15. Contact .............................................................................................................................................. 17
16. Disclaimer .......................................................................................................................................... 17
REVISION 8 – SEPTEMBER 2021
3901092242
Page 3 of 17
MLX92242
2-Wire EoL programmable Hall Effect Latch/Switch
6. Glossary of Terms
Tesla
TC
NC
POR
IMC
Units for the magnetic flux density, 1 mT = 10 Gauss
Temperature Coefficient in ppm/°C
Not Connected
Power on Reset
integrated magnetic concentrator (lateral sensing)
7. Absolute Maximum Ratings
Parameter
Symbol
Value
Units
VDD
+28
V
Supply Voltage (Load Dump) (1, 4)
VDD
+32
V
Supply Current (1, 2, 3)
IDD
+20
mA
(1, 3, 4)
IDD
+50
mA
Reverse Supply Voltage (1, 2)
VDDREV
-24
V
Reverse Supply Voltage
(1, 4)
VDDREV
-30
V
Reverse Supply Current
(1, 2, 5)
IDDREV
-20
mA
IDDREV
-50
mA
TJ
+165
C
ESD Sensitivity – HBM (7)
-
8
kV
ESD Sensitivity – System level (8)
-
15
kV
-
1000
V
B
Unlimited
mT
Supply Voltage
Supply Current
(1, 2)
Reverse Supply Current (1, 4, 5)
Maximum Junction Temperature
ESD Sensitivity – CDM
(9)
Magnetic Flux Density
(6)
Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute maximum rated
conditions for extended periods may affect device reliability.
1
The maximum junction temperature should not be exceeded
For maximum 1 hour
3
Including current through protection device
4 For maximum 500ms
5 Through protection device
6 For 1000 hours
7 Human Model according AEC-Q100-002 standard
8 Indirect discharge according VW TL82466 standard, typical value, only for option MLX92242LUA -AAA-1xx and -3xx
9 Charged Device Model according AEC-Q100-011 standard
2
REVISION 8 – SEPTEMBER 2021
3901092242
Page 4 of 17
MLX92242
2-Wire EoL programmable Hall Effect Latch/Switch
8. General Electrical Specifications
DC Operating Parameters VDD = 2.7V to 24V, TJ = -40°C to 165°C (unless otherwise specified)
Parameter
Symbol Test Conditions
Min Typ(1)
OFF Supply Current
(selectable by a dedicated bit)
ON Supply Current
Reverse Supply current
Safe Mode Supply Current
Supply Current Rise/Fall Time (2)
IOFF
VDD = 3.5 to 24V
ION
IDDREV
ISAFE
tR/tF
VDD = 3.5 to 24V
VDD = -16V
Power-On Time (3, 4)
tON
Chopping Frequency
fCHOP
Delay Time (2, 5)
tD
Output Jitter (p-p) (2, 6)
tJITTER
Maximum Switching Frequency (2, 7)
fSW
Under-voltage Lockout Threshold
Under-voltage Lockout Reaction time (2)
Max Programming Supply Voltage
VUVL
tUVL
VDDprog
Integrated bypass capacitor
CBP
Thermal Protection Activation
Thermal Protection Release
UA Package Thermal Resistance
SE Package Thermal Resistance
TPROT
TREL
RTHJA
RTHJA
VDD = 12V, CLOAD = 50pF to GND
VDD = 5V, dVDD/dt > 2V/us,
activated output with >1mT
overdrive
Average over 1000 successive
switching events @10kHz, Latch,
BOP set to 5mT, triangle wave
magnetic field with B>±20mT
Over 1000 successive switching
events @10kHz, Latch, BOP set to
5mT, triangle wave magnetic field
with B>±20mT
Latch, BOP set to 5mT, triangle wave
magnetic field with B>±20mT
Only for options MLX92242LUAAAA-1xx and -3xx
Max Units
2
5
12
-1
0.1
0.3
5
6.9
17
1
1
mA
mA
mA
mA
mA
µs
-
40
70
µs
-
350
-
kHz
-
7.5
-
µs
-
±3.5
-
µs
-
50
-
kHz
-
1
22
2.7
28
V
µs
V
-
68
-
nF
-
190(8)
180(8)
200
300
-
°C
°C
°C/W
°C/W
1
Typical values are defined at T A = +25°C and V DD = 12V.
2
Guaranteed by design and verified by characterization, not production tested.
3
The Power-On Time represents the time from reaching V DD = 2.7V to the first refresh of the supply current state.
4
Power-On Slew Rate is not critical for the proper device start-up.
5
The Delay Time is the time from magnetic threshold reached to the start of the output switching.
6
Output jitter is the unpredictable deviation of the Delay time.
7
Maximum switching frequency corresponds to the maximum frequency of the applied magnetic field which is detected without loss of
pulses.
8 T
PROT and TREL are the corresponding junction temperature values.
REVISION 8 – SEPTEMBER 2021
3901092242
Page 5 of 17
MLX92242
2-Wire EoL programmable Hall Effect Latch/Switch
9. Magnetic Specifications
9.1. MLX92242LUA-AAA-000, MLX92242LSE-AAA-000 and MLX92242LUA-AAA-100
DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 150°C (unless otherwise specified)
Symbol Test Conditions
Min
Typ(1)
Max
Units
(2)
BOP
-100
-
100
mT
Factory pre-programmed
Operating Point, Switch
BOP
26
28
30
mT
Factory pre-programmed
Release Point, Switch
BRP
19
21
23
mT
BOP Magnitude Programming (3)
-
8
-
bit
BOP Polarity Selection
-
1
-
bit
-2000
-
0
ppm/°C
-
5
-
bit
Switch/Latch Function Selection
-
1
-
bit
Proportional/Absolute Hysteresis
Selection
-
1
-
bit
Hysteresis Programming (7)
-
5
-
bit
0.025
-
0.800
-
0
-
3.1
mT
-0.6
0
0.6
mT
-0.7
0
0.7
mT
Parameter
Operating Point Range
BOP/BRP Temperature Coefficient
Programming Range (4, 5)
BOP/BRP Temperature Coefficient
Programming
TC (6)
VDD = 5V, TJ = 25°C
VDD = 5V, TJ = 25°C,
programming target
28mT
VDD = 5V, TJ = 25°C,
programming target
28mT, HYSRATIO = 0.75
VDD = 5V, Latch with
BOP = 28mT, BRP = -28mT
Proportional Hysteresis Ratio
Programming Range
HYSRATIO = BHYSPR / BOP (4)
HYSRATIO Programming step 0.025
Absolute Hysteresis Range (4)
BHYSABS
Absolute Hysteresis tolerance (8)
BHYSTOL
Absolute Hysteresis tolerance (8)
BHYSTOL
BOP, BRP and BHYSPR life time drift
Programming step 0.1mT
BHYSABS = 0.8mT to 1.6mT,
BOP = 3mT, VDD = 3.5 to
14V
BHYSABS = 1.7mT to 3.1mT,
BOP = 3mT, VDD = 3.5 to
14V
HTOL 1000h at TJ = 165°C -(4%+0.2mT)
4%+0.2mT
Output Polarity Selection
-
1
-
Bit
VDD Programming Lock
-
1
-
bit
1
Typical values are defined at TA = +25°C and VDD = 5V
Guaranteed by correlation with production test at B = 28mT and verified by characterization
3
The programming step is typically from 0.4% to 0.8% of the programmed BOP value for |BOP| ≥ 2mT and 0.016mT for |BOP| ≤ 2mT
4 The minimum and maximum limits are typical values
5 The factory pre-programmed TC value is -2000 ppm/°C
6 The B /B Temperature Coefficient is calculated using the following formula:
OP RP
(𝐵𝑂𝑃𝑇2 − 𝐵𝑅𝑃𝑇2 ) − (𝐵𝑂𝑃𝑇1 − 𝐵𝑅𝑃𝑇1 )
𝑝𝑝𝑚
𝑇𝐶 =
∗ 106 ,
; 𝑇1 = 25℃; 𝑇2 = 150℃
(𝐵𝑂𝑃𝑇1 − 𝐵𝑅𝑃𝑇1 ) ∗ (𝑇2 − 𝑇1 )
℃
7 Programming of very low hysteresis magnitude (