MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
1 Product Description
The MT831X family is produced by BCD technology with
both high performance and high reliability. The Hall IC
internally includes an on-chip Hall voltage generator, a
voltage regulator for operation with supply voltage of 3.8V
to 60V, temperature compensation circuitry, small-signal
amplifier, Hall IC with dynamic offset cancellation system,
Schmitt trigger and an open collector output. It also
includes an clamp diode at output and reversed power
supply protection enhances the robustness of Hall IC.
The Hall IC designed to respond to a single poles. While
the magnetic flux density(B) is larger than operating point
(BOP), the output will be turned on (Low), the output is held
until the magnetic flux density(B) is lower than releasing
point (BRP), then turn off (High).
The MT831X family provides a variety of packages to
customers: SOT-23/SOT-23 (Thin Outline)/SOT-89B for
surface mount and flat TO-92 for through-hole mount. All
packages are RoHS compliant.
2 Features
￭ AEC-Q100 Automotive Qualified
MT831XAT & MT831XET
￭ Uni-polar Switch
￭ 3.8~60V Operating Vcc Range
￭ -40℃~150℃ Operating Temperature
￭ Package Option:
Flat TO-92 / Flat TO-92 (Radial Lead) / SOT-23 /
SOT-23 (Thin Outline) / SOT-89B
￭ Magnetic Sensitivity Option:
MT8311 (BOP=140Gs, BRP=105Gs)
MT8312 (BOP=255Gs, BRP=210Gs)
MT8313 (BOP=85Gs, BRP=50Gs)
MT8315 (BOP=30Gs, BRP=20Gs)
￭ Open-Drain Output
￭ -20V Reversed Power Supply Protection
￭ Output Limiting Current Protection
￭ RoHS Compliant: (EU)2015/863
4 Applications
￭
￭
￭
￭
￭
￭
5. Pin Configuration and Functions
VCC
Out
GND
SOT-23
1
2
3
SOT-23
(Thin Outline)
1
2
3
Flat TO-92
(Radial Lead)
1
3
2
Flat TO-92
1
3
2
SOT-89B
1
3
2
Description
Power
Output
Ground
GND
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2
3
OUT
1
GND
SOT-89B, tape & reel (1000pcs/bag)
按钮
1
MT831XBT
3
Vcc
Vcc
MT831XET
SOT-23 (Thin Outline), tape & reel
(3000pcs/bag)
按钮
SOT-23, tape & reel (3000pcs/bag)
OUT
按钮
MT831XAT
GND
OUT
Flat TO-92, radial lead, bulk packaging
(1000pcs/bag)
2
22
MT831XA-T
SOT-89B
Top-View
3
3
Flat TO-92, bulk packaging
(1000pcs/bag)
Vcc
MT831XA
11
Description
Open-Drain
SOT-23
Thin Outline
Top-View
SOT-23
Top-View
3 Product Overview of MT831X
Part No.
Automotive, Home appliances, Industrial
Speed Detection
Position Detection
Magnetic Encoder
Solid-State Switch
Proximity Switch
TO-92
Radial Lead
Top-View
TO-92
Top-View
OUT
3
GND
2
Vcc
1
OUT
GND
Vcc
Figure.1
1
Pin Configuration & Functions
Rev
1.8
3
2
1
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
Table of Contents
1
Product Description………...…….……………….……...…………………………………….…….………1
2
Features……………………………….……..……………………………………………………………….…….1
3
Product Overview of MT831X ..…………………………………………………………………………1
4
Applications……………………………………………………………………………………………………….1
5
Pin Configuration and Functions…………………………………………………….………………….1
6
Definition of Switching Function……………………………………………………………………….3
7
Function Description……...…………………………………………………………………………………..3
8
Feature Description……………………………………………………………………………………………3
9
Functional Block Diagram…………………………………………………………………………………..4
10
Electrical and Magnetic Characteristics………………………………………………………………4
10.1 Absolute Maximum Ratings……………………………………………………………………………….4
10.2 ESD Ratings………………………………………………………………………………………………………..4
10.3 Electrical Specifications……………………………………………………………………………………..5
10.4 Magnetic Characteristics……………………………………………………………………………………5
10.5 Characteristic Performance………………………………………………………………….…………….6
10.6 Typical Output Waveform…………………………………………………………………………………..7
11
Typical Application Circuit………………………………………………………………………………….7
12
Package Material Information……………………………………………………………………………8
12.1 SOT-23 Package Information……………………………...………………………………………………8
12.2 SOT-23 (Thin Outline) Package Information……...……………………………………………….9
12.3 Flat TO-92 Package Information……………………………………………………………………….10
12.4 Flat TO-92 (Radial Lead) Package Information…………………………………………………11
12.5 SOT-89B Package Information……...…………………………………………………………………12
13
Copy Rights and Disclaimer……………………………………………………………………………..13
1
2
Originally Version
1.1 Version
3
4
5
6
1.2 Version
1.3 Version
1.4 Version
1.5 Version
7
8
9
1.6 Version
1.7 Version
1.8 Version
Reversion History
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Update MT8312 & MT8313 Series
Update SOT-23 (Thin Outline) Package
Update Flat TO-92 (Radial Lead) Package
Update AEC-Q100 Automotive on MT831XAT
Update RoHS compliant to (EU)2015/863
Update AEC-Q100 Logo
Update Copy Rights and Disclaimer
Update AEC-Q100 Automotive on MT831XET
Update MT8315 Series
Update the marking spec of SOT-23 & SOT23 (Thin Outline)
2
Rev
1.8
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
6 Definition of Switching Function
Figure.2 & Figure.3 shows the device functionality and hysteresis
Vcc
Vcc
North
Figure.2
BOP
South
BRP
North
Switching Function Uni-polar (North)
BOP
South
Switching Function Uni-polar (South)
Figure.3
SOT-23
BRP
SOT-23 (Thin Outline) / Flat TO-92 / SOT-89B
7 Function Description
BOP: Operating Point, Magnetic flux density applied on the branded side of the package which turns the
output driver ON (VOUT=Low)
BRP: Releasing Point, Magnetic flux density applied on the branded side of the package which turns the
output driver OFF (VOUT=High)
BHYST: Hysteresis Window, |BOP - BRP|
Devices that have a lower magnetic threshold (VOUT=High) detect magnets at a farther distance. Higher
thresholds (VOUT=Low) generally require a closer distance or larger magnet.
8 Feature Description
S
N
N
N
N
S
S
S
SOT-23
Flat TO-92
SOT-23
SOT-89B
Figure.4
(Thin Outline)
Motion
The MT831X device is sensitive to the magnetic field component that is perpendicular to the top of the
package
S
N
N
N
N
S
S
S
SOT-23
Flat TO-92
SOT-23
SOT-89B
(Thin Outline)
PCB
PCB
VOUT = Low
VOUT= High
Flux Direction Polarity
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3
Rev
1.8
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
9 Functional Block Diagram
Vcc
Reference
Dynamic
Offset
Cancelation
Regulator
Limiting
Current
Protection
Out
ESD
ESD
Hall Plate
ITA
COMP
Output Driver
GND
Figure.5
Functional Block Diagram
10 Electrical and Magnetic Characteristics
10.1 Absolute Maximum Ratings
Absolute maximum ratings are limited values to be applied individually, and beyond which the
serviceability of the circuit may be impaired. Functional operability is not necessarily implied. Exposure to
absolute maximum rating conditions for an extended period of time may affect device reliability.
Symbol
Parameters
Min
Max
Units
VCC
Supply Voltage
-
65
V
VRCC
Reverse Battery Voltage
-20
-
V
VOUT
Output Voltage
-
65
V
IOUT
Continuous Output Current
-
40
mA
TA
Operating Ambient Temperature
-40
150
℃
TS
Storage Temperature
-50
150
℃
TJ
Junction Temperature
-
165
℃
B
Magnetic Flux Density
No Limit
Gs
10.2 ESD Ratings
Symbol
VESD
Reference
Values
Unit
Human-body model (HBM)
AEC-Q100-002
Class II
Grade
Charged-device model (CDM)
AEC-Q100-011
Class C6
Grade
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4
Rev
1.8
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
10.3 Electrical Specifications
At TA=-40~150 ℃, Vcc=3.8V~60V (unless otherwise specified)
Symbol
Parameters
Test Condition
Min
Typ
Max
Unit
VCC
Supply Voltage
Operating
3.8
-
60
V
ICC
Supply Current
BBOP, VOUT=Vcc
-
50
-
mA
VDSON
Output Saturation Voltage
IOUT=15mA,
B>BOP
-
-
0.4
V
IOFF
Output Leakage Current
VOUT=24V,
∣B∣5V/uS
B>BOP(MAX)
-
-
10
us
FC
Chopping Frequency
-
800
-
KHz
FS
Sampling Frequency
-
200
-
KHz
Thermal Resistance of SOT-23
-
301
-
℃/W
Thermal Resistance of SOT-23 (Thin Outline)
-
301
-
℃/W
Thermal Resistance of TO-92
-
230
-
℃/W
Thermal Resistance of SOT-89B
-
230
-
℃/W
RTH
10.4 Magnetic Characteristics
At VCC=3.8V~60V (unless otherwise specified)
Part No.
MT8311 Series
MT8312 Series
MT8313 Series
MT8315 Series
Symbol
Min
Typ
Max
Unit
BOP, TA =25℃
110
140
170
Gs
BRP, TA =25℃
75
105
135
Gs
BHYST, TA =25℃
20
35
50
Gs
BOP, TA =25℃
210
255
300
Gs
BRP, TA =25℃
165
210
255
Gs
BHYST, TA =25℃
30
45
60
Gs
BOP, TA =25℃
60
85
110
Gs
BRP, TA =25℃
25
50
75
Gs
BHYST, TA =25℃
20
35
50
Gs
BOP, TA =25℃
20
30
40
Gs
BRP, TA =25℃
10
20
30
Gs
BHYST, TA =25℃
3
10
17
Gs
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Rev
1.8
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
10.5 Characteristic Performance
Supply Current (mA)
At VCC=5V
6
5
4
3
2
1
0
-40
25
85
125
150
Temperature ℃
Figure.6
Supply Current vs. Temperature
MT8311
MT8312
165
MT8313
300
150
250
90
75
60
45
Bop
30
150
100
Bop
50
Brp
15
200
0
25
85
125
150
60
50
40
30
Bop
25
85
125
150
20
15
10
25
85
125
-40
150
85
125
150
Magnetic Characteristics vs. Temperature (BOP & BRP)
MT8312
MT8313
MT8315
50
50
50
50
40
30
20
10
40
30
20
10
0
125
Temperature ℃
150
40
30
20
10
0
85
Magnetic Field Intensity (Gs)
60
Magnetic Field Intensity (Gs)
60
Magnetic Field Intensity (Gs)
60
Figure.8
25
Temperature ℃
Temperature ℃
60
25
Brp
0
-40
Temperature ℃
MT8311
-40
Bop
5
Brp
10
0
-40
Temperature ℃
Figure.7
70
20
Brp
0
-40
Magnetic Field Intensity (Gs)
105
25
80
Magnetic Field Intensity (Gs)
120
Magnetic Field Intensity (Gs)
Magnetic Field Intensity (Gs)
30
90
135
Magnetic Field Intensity (Gs)
MT8315
100
25
85
125
150
20
0
-40
Temperature ℃
30
10
0
-40
40
25
85
125
150
-40
25
Temperature ℃
Magnetic Characteristics vs. Temperature (BHYST)
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85
125
Temperature ℃
Rev
1.8
150
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
10.6 Typical Output Waveform
MT8311A as example
B
BOP
BRP
T
V
High
Low
Figure.9
T
Digital Output vs. Magnetic Flux Density
11 Typical Application Circuit
MT8311AT as example
Note: Recommended value for RL is 1KOhms to 10KOhms
C1=100nF
Vcc
1
RL
按钮
Vcc
OUT
3
GND
GND
2
Out
C2=1nF
Figure.10
Typical Application Circuit
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7
Rev
1.8
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
12 Package Material Information （For Reference Only – Not for Tooling Use）
12.1 SOT-23 Package Information
3
XXXX
按钮
Product ID
按钮
2
1
OUT
Vcc
Figure.11
DateCode:
Y: Year W: Week
YW
GND
XXXX YW
SOT-23 Chip Marking Spec
Sensing
Center
Figure.12
SOT-23 Package Drawing
Symbol
Dimensions in Millimeters
Dimensions in Inches
Min
Max
Min
Max
A
1.050
1.250
0.041
0.049
A1
0.000
0.100
0.000
0.004
A2
1.050
1.150
0.041
0.045
b
0.300
0.500
0.012
0.020
c
0.100
0.200
0.004
0.008
D
2.820
3.020
0.111
0.119
E
1.500
1.700
0.059
0.067
E1
2.650
2.950
0.104
0.116
e
0.950 TYP
0.037 TYP
e1
1.800
2.000
0.071
0.079
L
0.300
0.600
0.012
0.024
θ
0︒
8︒
0︒
8︒
x
1.460 TYP
0.057 TYP
y
0.800 TYP
0.032 TYP
z
0.600 TYP
0.024 TYP
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8
Rev
1.8
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
12.2 SOT-23 (Thin Outline) Package Information
GND
XXXX YW
3
Product ID
22
11
OUT
Vcc
Figure.13
YW
3
XXXX
按钮
DateCode:
Y: Year W: Week
SOT-23 (Thin Outline) Chip Marking Spec
Sensing
Center
Figure.14
SOT-23 (Thin Outline) Package Drawing
Symbol
Dimensions in Millimeters
Dimensions in Inches
Min
Max
Min
Max
A
0.900
1.150
0.035
0.045
A1
0.000
0.100
0.000
0.004
A2
0.900
1.050
0.035
0.041
b
0.300
0.500
0.012
0.020
c
0.080
0.150
0.003
0.006
D
2.800
3.000
0.110
0.118
E
1.200
1.400
0.047
0.055
E1
2.250
2.550
0.089
0.100
e
e1
0.950 TYP
1.800
L
0.037 TYP
2.000
0.071
0.550 REF
0.079
0.022 REF
L1
0.300
0.500
0.012
0.020
θ
0︒
8︒
0︒
8︒
x
1.460 TYP
0.057 TYP
y
0.650 TYP
0.026 TYP
z
0.500 TYP
0.020 TYP
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9
Rev
1.8
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
12.3 Flat TO-92 Package Information
XXXX
XXXX
YWW
Product ID
YWW
DateCode: week (01~55)
DateCode: year (0~9)
3 OUT
2 GND
1 Vcc
Figure.15
Flat TO-92 Chip Marking Spec
Sensing
Center
Figure.16
Flat TO-92 Package Drawing
Symbol
Dimensions in Millimeters
Dimensions in Inches
Min
Max
Min
Max
A
1.420
1.620
0.056
0.064
A1
0.660
0.860
0.026
0.034
b
0.350
0.480
0.013
0.019
b1
0.400
0.510
0.016
0.020
c
0.330
0.510
0.013
0.020
D
3.900
4.100
0.154
0.161
D1
2.280
2.680
0.090
0.106
E
3.050
3.250
0.120
0.128
e
1.270 TYP
0.050 TYP
e1
2.440
2.640
0.096
0.104
L
14.350
14.750
0.565
0.581
θ
45︒ TYP
45︒ TYP
x
2.025 TYP
0.080 TYP
y
1.545 TYP
0.061 TYP
z
0.500 TYP
0.020 TYP
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10
Rev
1.8
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
12.4 Flat TO-92 Package Information (Radial Lead)
XXXX
XXXX
YWW
Product ID
YWW
DateCode: week (01~55)
DateCode: year (0~9)
3 OUT
2 GND
1 Vcc
Figure.17
Flat TO-92 (Radial Lead) Chip Marking Spec
Sensing
Center
Figure.18
Flat TO-92 (Radial Lead) Package Drawing
Symbol
Dimensions in Millimeters
Dimensions in Inches
Min
Max
Min
Max
A
1.420
1.620
0.056
0.064
A1
0.660
0.860
0.026
0.034
b
0.350
0.480
0.013
0.019
b1
0.400
0.510
0.016
0.020
c
0.330
0.510
0.013
0.020
D
3.900
4.100
0.154
0.161
D1
2.280
2.680
0.090
0.106
E
3.050
3.250
0.120
0.128
e
2.540 TYP
0.100 TYP
e1
5.000 TYP
0.197 TYP
L1
2.000 TYP
0.079 TYP
L
13.88 TYP
0.546 TYP
θ
45︒ TYP
45︒ TYP
x
2.025 TYP
0.080 TYP
y
1.545 TYP
0.061 TYP
z
0.500 TYP
0.020 TYP
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11
Rev
1.8
MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
12.5 SOT-89B Package Information
XXXX
XXXX
YWW
Product ID
3
2
1
按钮
YWW
OUT
GND
Vcc
DateCode: week (01~55)
DateCode: year (0~9)
Figure.19
SOT-89B Chip Marking Spec
Sensing
Center
Figure.20
SOT-89B Package Drawing
Symbol
Dimensions in Millimeters
Dimensions in Inches
Min
Max
Min
Max
A2
1.220
1.420
0.048
0.056
A1
0.000
0.100
0.000
0.004
b
0.300
0.500
0.012
0.020
c
0.052
0.252
0.002
0.010
D
4.400
4.600
0.173
0.181
b1
1.600
1.800
0.063
0.071
E
2.400
2.600
0.094
0.102
HE
4.000
4.400
0.157
0.173
e
1.400
1.600
0.055
0.063
L
0.350
0.550
0.014
0.022
x
2.250 TYP
0.089 TYP
y
1.250 TYP
0.049 TYP
z
0.300 TYP
0.012 TYP
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MT831X
Uni-polar, High Voltage Hall-Effect Switch IC
13 Copy Rights and Disclaimer
1. This document may not be reproduced or duplicated, in any form, in whole or in part without prior
written consent of MagnTek . Copyrights © 2019, MagnTek Incorporated.
2. MagnTek reserves the right to make changes to the information published in this document at
anytime without notice.
3. MagnTek’s products are limited for use in normal commercial applications. MagnTek’s products are
not to be used in any device or system, including but not limited to medical life support equipment and
system.
For the latest version of this document, please visit our website: www.magntek.com.cn
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