MLX92231LUA-AAA-xxx-BU [MELEXIS]
3-Wire Hall Effect Switch;
| 型号： | MLX92231LUA-AAA-xxx-BU |
| 厂家： | 
Melexis Microelectronic Systems |
| 描述： | 3-Wire Hall Effect Switch |
| 文件： | 总12页 (文件大小：770K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MLX92231-AAA-xxx
3-Wire Hall Effect Switch
Features and Benefits
Application Examples
Wide operating voltage range: from 2.7V to 24V
Accurate switching thresholds
Automotive, Consumer and Industrial
Solid-state switch
Reverse Supply Voltage Protection
Output Current Limit with Auto-Shutoff
Under-Voltage Lockout Protection
Thermal Protection
Traceability with integrated unique ID
High ESD rating / Excellent EMC performance
Thin SOT23 3L Green Compliant package
Brake sensor
Clutch sensor
Sunroof/Tailgate opener
Steering Column Lock
Open / Close detection
Ordering Information
Part No.
MLX92231LSE-AAA-xxx-RE
MLX92231LUA-AAA-xxx-BU
Temperature Code
L (-40°C to 150°C)
L (-40°C to 150°C)
Package Code
SE (TSOT-3L)
UA (TO-92)
Comment
RE (Reel)
BU (Bulk)
1 Functional Diagram
In addition to that an ID has been integrated on the IC
to have a complete traceability throughout the
process flow.
VDD
Voltage Regulator
Under-
with Reverse Polarity
Protection
Voltage
Lockout
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.
Temperature
Compensation
Bop/Brp
reference
Thermal
Protection
Switched
Hall
Plate
OUT
Open-Drain
Output
CDS
Amplifier
In the 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 state is
therefore only updated based on a proper and
accurate magnetic measurement result.
Current
Limit &
Auto-Shutoff
Control
GND
2 General Description
The open drain output is fully protected against short-
circuit with a built-in current limit. An additional
automatic output shut-off is activated in case of a
prolonged short-circuit condition. A self-check is then
periodically performed to switch back to normal
operation if the short-circuit condition is released.
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 Melexis MLX92231 is a Hall-effect unipolar
switch designed in mixed signal CMOS technology.
The device integrates a voltage regulator, Hall sensor
with advanced offset cancellation system, automotive
qualified EEPROM and an open-drain output driver,
all in a single package.
Based on the existing robust 922xx platform, the
magnetic core has been equipped with a non-volatile
memory that is used to accurately trim the switching
thresholds and define the needed output magnetic
characteristics (TC, Bop, Brp, Output pole
functionality).
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
Table of Contents
1 Functional Diagram.....................................................................................................................1
2 General Description....................................................................................................................1
3 Absolute Maximum Ratings .......................................................................................................3
4 General Electrical Specifications...............................................................................................4
5 Magnetic Specifications .............................................................................................................5
5.1 MLX92231LSE-AAA-004..................................................................................................................................... 5
5.2 MLX92231LSE-AAA-007..................................................................................................................................... 5
5.3 MLX92231LSE-AAA-009..................................................................................................................................... 5
5.4 MLX92231LSE-AAA-010..................................................................................................................................... 5
6 Magnetic Behaviour....................................................................................................................6
6.1 Latch sensor ....................................................................................................................................................... 6
7 Detailed General Description .....................................................................................................7
8 Latching Characteristic ..............................................................................................................7
9 Application Information..............................................................................................................8
9.1 Typical Three-Wire Application Circuit.................................................................................................................. 8
9.2 Automotive and Harsh, Noisy Environments Three-Wire Circuit ............................................................................ 8
10 Standard information regarding manufacturability of Melexis products with different soldering
processes.......................................................................................................................................9
11 ESD Precautions .......................................................................................................................9
12 Package Information...............................................................................................................10
12.1 SE (TSOT-3L) Package Information................................................................................................................. 10
12.2 UA (TO92-3L) Package Information ................................................................................................................ 11
13 Disclaimer................................................................................................................................12
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
3 Absolute Maximum Ratings
Parameter
Supply Voltage (1, 2)
Supply Voltage (Load Dump) (1, 4)
Supply Current (1, 2, 3)
Supply Current (1, 4, 3)
Reverse Supply Voltage (1, 2)
Reverse Supply Voltage (4)
Reverse Supply Voltage (Load Dump)(11)
Reverse Supply Current (1, 2, 5)
Symbol
VDD
Value
Units
V
+27V
+32V
+20
VDD
V
IDD
mA
mA
V
IDD
+50
VDDREV
VDDREV
VDDREV
IDDREV
IDDREV
VOUT
IOUT
IOUT
VOUTREV
IOUTREV
TJ
-24
-30
V
-35
V
-20
mA
mA
V
Reverse Supply Current (1, 4, 5)
-50
(1 2)
Output Voltage
Output Current (1, 2, 5)
Output Current (1, 4, 6)
Reverse Output Voltage (1)
Reverse Output Current (1, 2)
Maximum Junction Temperature (7)
,
+27
+20
mA
mA
V
+75
-0.5
-100
+165
-55 to +165
4000
500
mA
C
C
V
Storage Temperature Range
ESD Sensitivity – HBM (8)
ESD Sensitivity – MM (9)
Ts
-
-
V
ESD Sensitivity – CDM (10)
Magnetic Flux Density 11
-
1000
Unlimited
V
B
mT
Table 1: Absolute maximum ratings
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
2 For maximum 1 hour
3 Including current through protection device
4 For maximum 500ms
5 Through protection device
6 For VOUT ≤27V.
7 For 1000 hours.
8 Human Model according AEC-Q100-002 standard
9 Machine Model according AEC-Q100-003 standard
10 Charged Device Model according AEC-Q100-011 standard
11 For maximum 100ms
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
4 General Electrical Specifications
DC Operating Parameters VDD = 2.7V to 24V, TA = -40°C to 150°C (unless otherwise specified)
Parameter
Symbol Test Conditions
Min
2.7
Typ(2)
Max
24
Units
V
Supply Voltage
VDD
Operating
-
Supply Current
IDD
1.5
3.0
4.5
1
mA
mA
V
Reverse supply current
Output Saturation Voltage
Output Leakage
IDDREV
VDSON
IOFF
VDD = -16V
VDD = 3.5 to 24V, IOUT = 20mA
VOUT = 12V, VDD = 12V
0.3
0.5
10
µA
Output Rise Time (1, 6)
(RPU dependent)
RPU = 1kΩ, VDD = 12V, VPU = 5V
CLOAD = 50pF to GND
RPU = 1kΩ, VDD = 12V, VPU = 5V
CLOAD = 50pF to GND
VDD = 5V, dVDD/dt > 2V/us
t < tON
tR
tF
0.1
0.3
0.3
1
µs
µs
Output Fall Time (1, 6)
(On-chip controlled )
0.1
-
1
Power-On Time (3,4,7)
Power-On Output State
Output Current Limit
tON
-
40
High (VPU)
40
70
µs
-
ICL
VDD=3.5 to 24V, VOUT = 12V
25
70
mA
Output ON Time under Current
tCLON
VPU = 12V, RPU = 100Ω
VPU = 12V, RPU = 100Ω
150
240
3.5
µs
Limit conditions(8)
Output OFF Time under
tCLOFF
ms
Current Limit conditions(8
)
Chopping Frequency
Refresh Period
fCHOP
tPER
340
6
-
-
kHz
µs
-
-
Over 1000 successive switching events
@1kHz square wave magnetic field, B >
±(BOPMAX +20mT)
Output Jitter (p-p) (1)
tJITTER
±4
-
µs
Maximum Switching
Frequency (1, 5)
Under-voltage Lockout
Threshold
Under-voltage Lockout
Reaction time (1)
B > ±3(BOPMAX +1mT), square wave
magnetic field
fSW
30
-
50
-
-
2.7
-
kHz
V
VUVL
tUVL
-
1
µs
Thermal Protection Threshold TPROT
Thermal Protection Release TREL
Table 2: General specifications
Junction temperature
Junction temperature
-
-
190
180
-
-
°C
°C
1
2
3
4
5
6
7
8
Guaranteed by design and verified by characterization, not production tested
Typical values are defined at T = +25ºC and V = 12V
A
DD
The Power-On Time represents the time from reaching V
= 2.7V to the first refresh of the output
DD
Power-On Slew Rate is not critical for the proper device start-up.
Maximum switching frequency corresponds to the maximum frequency of the applied magnetic field which is detected without loss of pulses
R
and V are respectively the external pull-up resistor and pull-up power supply
PU
PU
B > B
opmax
If the Output is in Current Limitation longer than t
+1mT for direct output sensors or B < B
-1mT for inverted output sensors.
rpmin
the Output is switched off in high-impedance state. The Output returns back in active state at next reaching of B
or
CLON
OP
after t
time interval
CLOFF
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
5 Magnetic Specifications
5.1 MLX92231LSE-AAA-004
DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 165°C
Test
Condition
Operating Point
BOP (mT)
Release Point
BRP (mT)
TC
Output
behaviour
Active Pole
(ppm/oC)
Min
-8.4
-7.1
-7.1
Typ(10)
Max
Min
-6.1
-5.3
-6.7
Typ(10)
Max
-1.5
-2
Typ(10)
Out = Low (VDSON
)
)
)
)
TJ = -40°C
TJ = 25°C
TJ = 150°C
-6
-3.6
-3.9
-2
-3.6
-5.5
-4.8
-3.5
-1100
Direct
North pole
-3.5
-1.3
5.2 MLX92231LSE-AAA-007
DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 165°C
Test
Condition
Operating Point
BOP (mT)
Release Point
BRP (mT)
TC
Output
behaviour
Active Pole
(ppm/oC)
Min
20
20
20
Typ(10)
Max
Min
14
14
14
Typ(10)
Max
25
Typ(10)
Out = Low (VDSON
TJ = -40°C
TJ = 25°C
TJ = 150°C
26
33
33
33
20
26
20
25
0
Direct
South pole
26
20
25
5.3 MLX92231LSE-AAA-009
DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 165°C
Test
Condition
Operating Point
BOP (mT)
Release Point
BRP (mT)
TC
Output
behaviour
Active Pole
(ppm/oC)
Min
2
Typ(10)
Max
Min
1.4
1.8
1.4
Typ(10)
Max
3.3
3.1
3.3
Typ(10)
Out = Low (VDSON
TJ = -40°C
TJ = 25°C
TJ = 150°C
3.5
5
4.5
5
2.5
2.5
2
3.5
2.5
0
Direct
South pole
3.5
2.5
5.4 MLX92231LSE-AAA-010
DC Operating Parameters VDD = 3.5V to 24V, TJ = -40°C to 165°C
Test
Condition
Operating Point
BOP (mT)
Release Point
BRP (mT)
TC
Output
behaviour
Active Pole
(ppm/oC)
Min
8.7
8.3
6.1
Typ(10)
10.7
10
Max
Min
6.8
6.8
4.9
Typ(10)
Max
Typ(10)
Out = Low (VDSON
TJ = -40°C
TJ = 25°C
TJ = 150°C
13.4
11.8
11.4
9.0
8.5
7.3
11.5
10.1
9.8
-1100
Direct
South pole
8.6
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
6 Magnetic Behaviour
Operation Point BOP – magnetic threshold for activation of the device output, turning in ON (low) state.
Release Point BRP – magnetic threshold for release of the device output, turning in OFF (high) state).
Hysteresis BHYS – magnetic hysteresis, BHYS = BOP - BRP
6.1 Latch sensor
Active pole
Parameter
Option 1
Pole Active
South
Remark
Fig.1
Fig.2
Option 2
North
Output level
Output level
VOUT = VPULL-UP
VOUT = VPULL-UP
VOUT = VOL
VOUT = VOL
0mT
0mT
Flux density
Flux density
BRP
BOP
BRP
BOP
Fig.1 –South Pole Active
Fig.2 –North Pole Active
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
7 Detailed General Description
Based on mixed signal CMOS technology, Melexis MLX92231 is a Hall-effect device with a pre-programmed
magnetic threshold. It allows using generic magnets, weak magnets or larger air gap.
The chopper-stabilized amplifier uses switched capacitor techniques to suppress the offset generally observed with
Hall sensors and amplifiers. The CMOS technology makes this advanced technique possible and contributes to
smaller chip size and lower current consumption than bipolar technology. The small chip size is also an important
factor to minimize the effect of physical stress.
This combination results in more stable magnetic characteristics and enables faster and more precise design.
The operating voltage from 2.7V to 24V, pre-programmed tc and an operating temperature range according to “L”
specification make this device suitable for automotive, industrial and consumer low voltage applications.
The output signal is open-drain type. Such output allows simple connectivity with TTL or CMOS logic by using a pull-
up resistor tied between a pull-up voltage and the device output
8 Latching Characteristic
The MLX92231-AAA exhibits bipolar magnetic switching characteristics.
Output level
Typically, the device behaves as a latch with symmetric
operating and release switching points (BOP=|BRP|).
OUT = High
A bipolar switch is closely operating as a latch as it requires
both magnetic poles to turn the output ON and OFF. However ,
magnetic parameters limits are defined so that the magnetic
memory is not guaranteed. In absence of magnetic field, the
output could keep or change its state depending on the
operating conditions.
OUT = Low
Flux density
0mT
BRP
BOP
Latch characteristic
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
9 Application Information
9.1 Typical Three-Wire Application Circuit
Notes:
RPU
10k
1. For proper operation, a 10nF to 100nF bypass capacitor should
be placed as close as possible to the VDD and ground pin.
2. The pull-up resistor RPU value should be chosen in to limit the
current through the output pin below the maximum allowed
continuous current for the device.
3. A capacitor connected to the output is not needed, because the
output slope is generated internally.
MLX92231
VDD
C1
10nF
VCC
VOUT
OUT
GND
9.2 Automotive and Harsh, Noisy Environments Three-Wire Circuit
R1
D1
100 Ohms
RPU
MLX92231
10k
VDD
VCC
Z1
C1
10nF
VOUT
OUT
GND
C2
4.7nF
Notes:
1. For proper operation, a 10nF to 100nF bypass capacitor should be placed as close as possible to the VDD and ground pin.
2. The device could tolerate negative voltage down to -24V, so if negative transients over supply line VPEAK< -30V are expected, usage of the
diode D1 is recommended. Otherwise only R1 is sufficient.
When selecting the resistor R1, three points are important:
- the resistor has to limit IDD/IDDREV to 50mA maximum
- the resistor has to withstand the power dissipated in both over voltage conditions (VR12/R1)
- the resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC – R1.IDD
)
3. The device could tolerate positive supply voltage up to +27V (until the maximum power dissipation is not exceeded), so if positive
transients over supply line with VPEAK> 32V are expected, usage a zener diode Z1 is recommended. The R1-Z1 network should be sized to
limit the voltage over the device below the maximum allowed.
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
10 Standard information regarding manufacturability of Melexis products with
different soldering processes
Our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level
according to following test methods:
Reflow Soldering SMD’s (Surface Mount Devices)
IPC/JEDEC J-STD-020
Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices
(classification reflow profiles according to table 5-2)
EIA/JEDEC JESD22-A113
Preconditioning of Nonhermetic Surface Mount Devices Prior to Reliability Testing
(reflow profiles according to table 2)
Wave Soldering SMD’s (Surface Mount Devices) and THD’s (Through Hole Devices)
EN60749-20
Resistance of plastic- encapsulated SMD’s to combined effect of moisture and soldering heat
EIA/JEDEC JESD22-B106 and EN60749-15
Resistance to soldering temperature for through-hole mounted devices
Iron Soldering THD’s (Through Hole Devices)
EN60749-15
Resistance to soldering temperature for through-hole mounted devices
Solderability SMD’s (Surface Mount Devices) and THD’s (Through Hole Devices)
EIA/JEDEC JESD22-B102 and EN60749-21
Solderability
For all soldering technologies deviating from above mentioned standard conditions (regarding peak temperature,
temperature gradient, temperature profile etc) additional classification and qualification tests have to be agreed upon
with Melexis.
The application of Wave Soldering for SMD’s is allowed only after consulting Melexis regarding assurance of
adhesive strength between device and board.
Melexis is contributing to global environmental conservation by promoting lead free solutions. For more information
on qualifications of RoHS compliant products (RoHS = European directive on the Restriction Of the use of certain
Hazardous Substances) please visit the quality page on our website: http://www.melexis.com/quality.aspx
11 ESD Precautions
Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control procedures whenever handling semiconductor products.
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
12 Package Information
12.1 SE (TSOT-3L) Package Information
2.75 BSC
1.00 MAX
0.88+-0.023
SEATING PLANE
1.60 BSC
see note 2
+0.025
-0.050
0.075
Notes:
1. All dimensions are in millimeters
2. Outermost plastic extreme width does not include mold flash or
protrusions. Mold flash and protrusions shall not exceed 0.15mm
per side.
3. Outermost plastic extreme length does not include mold flash or
protrusions. Mold flash and protrusions shall not exceed 0.25mm
per side.
4. The lead width dimension does not include dambar protrusion.
Allowable dambar protrusion shall be 0.07mm total in excess of the
lead width dimension at maximum material condition.
0.50 BSC
5. Dimension is the length of terminal for soldering to a substrate.
TOP VIEW
6. Dimension on SECTION B-B’ applies to the flat section of the lead
between 0.08mm and 0.15mm from the lead tip.
SIDE VIEW
7. Formed lead shall be planar with respect to one another with
0.076mm at seating plane.
12° REF.
TYP.
BASE METAL
WITH PLATING
Marking:
31xx
0.10 R.
MIN.
~
B’
0.35 +-0.1050
0.10 R.
B
4°+/-4
SEATING PLANE
MIN.
0.40+/-0.10
0.30
0.45
see note 5
0.575 REF.
SECTION B-B’
see note 6
END VIEW
1.51
Hall plate location
0.28
Notes:
1. All dimensions are in millimeters
Package line
TOP VIEW
END VIEW
SE Pin №
Name
VDD
OUT
Type
Function
1
2
3
Supply
Output
Ground
Supply Voltage pin
Open Drain output pin
Ground pin
GND
Table 1: SE Package pinout
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
12.2 UA (TO92-3L) Package Information
1.50+/-0.10
4.10+/-0.20
+0.10
+0.10
- 0.11
0.74
- 0.11
2.62
Notes:
7° Typ
7° Typ
1. All dimensions are in millimeters
2. Package dimension exclusive molding flash.
+0.03
- 0.03
0.46
3. The end flash shall not exceed 0.127 mm on
the top side.
0.00
0.15
+0.11
0.55- 0.10
Marking:
1st Line : 31WW àWW - calendar week
2nd Line : YLLL: à Y - last digit of year
LLL- Lot nr (3 digits)
0.38+/-0.03
0.38+/-0.03
1.27+/-0.055
2.54+/-0.055
45° NOM
7° NOM
Hall plate location
0.9
0.41
0.45
Notes:
1. All dimensions are in millimeters
Marked side
1
2
3
UA Pin №
Name
VDD
GND
OUT
Type
Function
1
2
3
Supply
Ground
Output
Supply Voltage pin
Ground pin
Open Drain output pin
Table 2: UA Package pinout
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MLX92231-AAA-xxx
3-Wire Hall Effect Switch
13 Disclaimer
Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of
Sale. Melexis makes no warranty, express, statutory, implied, or by description regarding the information set forth
herein or regarding the freedom of the described devices from patent infringement. Melexis reserves the right to
change specifications and prices at any time and without notice. Therefore, prior to designing this product into a
system, it is necessary to check with Melexis for current information. This product is intended for use in normal
commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or
high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not
recommended without additional processing by Melexis for each application.
The information furnished by Melexis is believed to be correct and accurate. However, Melexis shall not be liable to
recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of
profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in
connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or
liability to recipient or any third party shall arise or flow out of Melexis’ rendering of technical or other services.
© 2014 Melexis NV. All rights reserved.
For the latest version of this document, go to our website at
www.melexis.com
Or for additional information contact Melexis Direct:
Europe, Africa:
Phone: +32 1367 0495
Americas:
Asia:
Phone: +1 248-306-5400
E-mail: sales_usa@melexis.com
Phone: +32 1367 0495
E-mail: sales_asia@melexis.com
E-mail: sales_europe@melexis.com
ISO/TS 16949 and ISO14001 Certified
390109223101 – REV 2
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