MH282
General Sensitivity Unipolar Hall Effect Switch
MH282 is an unipolar Hall effect sensor IC. It incorporates advanced chopper
stabilization technology to provide accurate and stable magnetic switch points. The design,
specifications and performance have been optimized for applications of solid state switches.
The output transistor will be switched on (BOP) in the presence of a sufficiently strong
South pole magnetic field facing the marked side of the package. Similarly, the output will be
switched off (BRP) in the presence of a weaker South field and remain off with “0” field.
The package type is in a Halogen Free version was verified by third party organization.
Halogen Free package is available by customer’s option.
Features and Benefits
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DMOS Hall IC Technology.
Reverse bias protection on power supply pin.
Solid-State Reliability.
Chopper stabilized amplifier stage.
Unipolar, output switches with absolute value of South pole from magnet.
Operation down to 2.5V.
High Sensitivity for direct reed switch replacement applications.
100% tested at 125℃ for K Spec.
Custom sensitivity / Temperature selection are available.
Good ESD Protection.
RoHS compliant 2011/65/EU and Halogen Free
Applications
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073119
Solid state switch.
Limit switch.
Current limit.
Interrupter.
Current sensing
Magnet proximity sensor for reed switch replacement.
Page 1 of 11
Rev. 2.05
MH282
General Sensitivity Unipolar Hall Effect Switch
Ordering Information
Company Name and Product Category
MH:MST Hall Effect/MP:MST Power IC
Part number
181,182,183,184,185,248,249,276,477,381,381F,381R,382…..
If part # is just 3 digits, the forth digit will be omitted.
Temperature range
E: 85 ℃, I: 105 ℃, K: 125 ℃, L: 150 ℃
Package type
UA:TO-92S,VK:TO-92S(4pin),VF:TO-92S(5pin),SO:SOT-23,
SQ:QFN-3,ST:TSOT-23,SN:SOT-553,SF:SOT-89(5pin),
SS:TSOT-26,SD:DFN-6
Sorting
α,β,Blank…..
Part No.
MH282KUA
MH282KSO
MH282EUA
MH282ESO
Temperature Suffix
K (-40℃ to + 125℃)
K (-40℃ to + 125℃)
E (-40℃ to + 85℃)
E (-40℃ to + 85℃)
Package Type
UA (TO-92S)
SO (SOT-23)
UA (TO-92S)
SO (SOT-23)
KUA spec is using in industrial and automotive application. Special Hot Testing is utilized.
Functional Diagram
VDD
Out
Voltage
Regulator
Amp
Hall
Sensor
GND
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Page 2 of 11
Rev. 2.05
MH282
General Sensitivity Unipolar Hall Effect Switch
Absolute Maximum Ratings At (Ta=25℃)
Characteristics
Supply voltage,(VDD)
Output Voltage,(Vout)
Reverse Voltage , (VDD)
Magnetic flux density
Output current , (IOUT)
“E” version
“K” version
Operating Temperature Range, (Ta)
Storage temperature range, (Ts)
Maximum Junction Temp,(Tj)
(θja) UA / SO
(θjc) UA / SO
Thermal Resistance
Package Power Dissipation, (PD) UA / SO
Values
28
28
-28
Unlimited
50
-40 to +85
-40 to +125
-55 to +150
150
206 / 543
148 / 410
606 / 230
Unit
V
V
V
Gauss
mA
℃
℃
℃
℃
℃/W
℃/W
mW
Note: Do not apply reverse voltage to VDD and VOUT Pin, It may be caused for Miss function or damaged device.
Electrical Specifications
DC Operating Parameters: TA=+25℃, VDD=12V
Parameters
Test Conditions
Supply Voltage,(VDD)
Supply Current,(IDD)
Output Saturation Voltage, (Vsat)
Output Leakage Current, (Ioff)
Output Rise Time, (TR)
Output Fall Time, (TF)
Electro-Static Discharge
Operating
BBOP
IOFF BBop [(110) ~ (70)]
Low
Open (Pull-up Voltage)
Null or weak magnetic field
-Brp ~ +Brp
Open (Pull-up Voltage)
Open (Pull-up Voltage)
North pole
B< -Bop (-70~-110)
Open (Pull-up Voltage)
Low
South Pole
OUT=Low
OUT=Low
(VDSon)
(VDSon)
UA package
SO package
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Page 4 of 11
Rev. 2.05
MH282
General Sensitivity Unipolar Hall Effect Switch
Performance Graph
Typical Temperature(TA) Versus Flux Density
200.0
200.0
150.0
150.0
100.0
100.0
Flux Density(Gauss)
Flux Density(Gauss)
Typical Supply Voltage(VDD) Versus Flux Density
50.0
0.0
-50.0
BOP
-100.0
BRP
-150.0
50.0
0.0
-50.0
BOP
-100.0
BRP
-150.0
-200.0
-200.0
2.5
5
8
12
15
18
20
-40
24
-20
0
Typical Temperature(TA) Versus Supply Current(IDD)
4.5
4.0
4.0
Supply Current (mA)
5.0
4.5
Supply Current (mA)
3.5
3.0
2.5
2.0
1.5
2.5
2.0
1.5
1.0
0.5
0.0
50
75
100
0.0
125
2.5
5
Temperature(℃)
12
15
18
20
24
Typical Temperature(TA) Versus Output Voltage(VDSON)
400.0
400.0
350.0
350.0
Output Saturation Voltage (mV)
Output Saturation Voltage (mV)
8
Supply Voltage(V)
Typical Supply Voltage(VDD) Versus Output Voltage(VDSON)
300.0
250.0
200.0
150.0
100.0
50.0
0.0
300.0
250.0
200.0
150.0
100.0
50.0
0.0
2.5
5
8
12
15
18
20
24
-40
-20
0
25
50
75
100
125
Temperature(℃)
Supply Voltage(V)
073119
125
3.0
0.5
25
100
3.5
1.0
0
75
Typical Supply Voltage(VDD) Versus Supply Current(IDD)
5.0
-20
50
Temperature(℃)
Supply Voltage(V)
-40
25
Page 5 of 11
Rev. 2.05
MH282
General Sensitivity Unipolar Hall Effect Switch
Typical Supply Voltage(VDD) Versus Leakage Current(IOFF)
Power Dissipation versus Temperature(TA)
700
1.00
Package power Dissipation(mW)
0.90
Output Leakage Current(uA)
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
UA Package
600
R
θja
= 206℃/w
500
400
300
200
SO Package
100
Rθja = 543℃/w
0
0.00
2.5
5
8
12
15
18
20
24
-40
0
40
80
120
160
Temperature(℃)
Supply Voltage(V)
Package Power Dissipation
The power dissipation of the Package is a function of the pad size. This can vary from the
minimum pad size for soldering to a pad size given for maximum power dissipation. Power
dissipation for a surface mount device is determined by TJ(max), the maximum rated junction
temperature of the die, RθJA, the thermal resistance from the device junction to ambient, and the
operating temperature, Ta. Using the values provided on the data sheet for the Package, PD can
be calculated as follows:
PD =
TJ(max) - Ta
R j a
The values for the equation are found in the maximum ratings table on the data sheet.
Substituting these values into the equation for an ambient temperature Ta of 25°C, one can
calculate the power dissipation of the device which in this case is 606 milliwatts.
PD (UA) =
150C - 25C
= 606mW
206C/ W
The 206℃/W for the UA package assumes the use of the recommended footprint on a glass
epoxy printed circuit board to achieve a power dissipation of 606 milliwatts. There are other
alternatives to achieving higher power dissipation from the Package. Another alternative would
be to use a ceramic substrate or an aluminum core board such as Thermal Clad. Using a board
material such as Thermal Clad, an aluminum core board, the power dissipation can be doubled
using the same footprint.
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Page 6 of 11
Rev. 2.05
MH282
General Sensitivity Unipolar Hall Effect Switch
Sensor Location, Package Dimension and Marking
UA Package
Hall Chip location
NOTES:
1).Controlling dimension: mm
2).Leads must be free of flash
and plating voids
3).Do not bend leads within 1
mm of lead to package
Output Pin Assignment
(Top view)
interface.
4).PINOUT:
Pin 1
VCC
Pin 2
GND
Pin 3
Output
SO Package
Hall Plate Chip Location
(Top View)
(Bottom view)
(For reference only)Land Pattern
NOTES:
1. PINOUT (See Top View at left :)
Pin 1
VCC
Pin 2
Output
Pin 3
GND
2. Controlling dimension: mm
3. Lead thickness after solder plating will be 0.254mm
maximum
073119
Page 7 of 11
Rev. 2.05
MH282
General Sensitivity Unipolar Hall Effect Switch
Sot-23 package Tape On Reel Dimension
NOTES:
1. Material: Conductive polystyrene;
2. DIM in mm;
3. 10 sprocket hole pitch cumulative
tolerance ±0.2;
4. Camber not to exceed 1mm in
100mm;
5. Pocket position relative to sprocket
hole measured as true position of
pocket, not pocket hole;
6. (S.R. OHM/SQ) Means surface
electric resistivity of the carrier tape.
073119
Page 8 of 11
Rev. 2.05
MH282
General Sensitivity Unipolar Hall Effect Switch
IR reflow curve
SO Soldering Condition
UA Soldering Condition
073119
Page 9 of 11
Rev. 2.05
MH282
General Sensitivity Unipolar Hall Effect Switch
Packing specification:
Package
Bag
Box
Carton
Carton
Carton
TO-92S-3L
1,000pcs/Bag
10 Bags/Box
10 Boxes/Carton
5 Boxes/Carton
4 Boxes/Carton
SOT-23-3L
3,000pcs/Reel
5 Reels/Box
6 Boxes/Carton
6 Boxes/Carton
6 Boxes/Carton
TO-92S-3L
Weight
SOT-23-3L
Weight
1000pcs/Bag
10 Bags/Box
10 Boxes/Carton
0.11kg
1.26kg
13.38kg
5 Boxes/Carton
4 Boxes/Carton
6.82kg
5.54kg
3000pcs/Reel
5 Reels/Box
6 Boxes/Carton
6 Boxes/Carton
6 Boxes/Carton
0.13kg
0.73kg
4.84kg
4.84kg
4.84kg
SOT Package Inner box label:Size: 5cm*8cm
SOT Carton label:Size: 6 cm * 9cm
073119
Page 10 of 11
Rev. 2.05
MH282
General Sensitivity Unipolar Hall Effect Switch
UA Package Inner box label:Size: 5cm*8cm
UA Carton label:Size: 6 cm * 9cm
Combine:
When combine lot, one reel could have two D/C and no more than two DC. One carton
could have two devices, no more than two;
073119
Page 11 of 11
Rev. 2.05