MH188 Specifications
Ultra High Sensitivity Hall Effect Latch
MH188 Hall-effect sensor is a temperature stable, stress-resistant sensor. Superior
high-temperature performance is made possible through a dynamic offset cancellation that
utilizes chopper-stabilization. This method reduces the offset voltage normally caused by
device over molding, temperature dependencies, and thermal stress.
MH188 includes the following on a single silicon chip: voltage regulator, Hall voltage
generator, small-signal amplifier, chopper stabilization, Schmitt trigger, Advanced DMOS
wafer fabrication processing is used to take advantage of low-voltage requirements, component
matching, very low input-offset errors, and small component geometries.
This device requires the presence of both south and north polarity magnetic fields for
operation. In the presence of a south polarity field of sufficient strength, the device output
sensor on, and only switches off when a north polarity field of sufficient strength is present.
MH188 is rated for operation between the ambient temperatures –40
℃
and 85
℃
for the
E temperature range, and –40
℃
to 125
℃
for the K temperature range. The two package styles
available provide magnetically optimized solutions for most applications. Package SO is an
SOT-23, a miniature low-profile surface-mount package, while package UA is a three-lead
ultra mini SIP for through-hole mounting.
Packages is
Halogen Free
standard and which have been verified by third party lab.
Features and Benefits
DMOS Hall IC Technology.
Reverse bias protection on power supply pin.
Chopper stabilized amplifier stage.
Optimized for BLDC motor applications.
Reliable and low shifting on high Temp condition.
Good ESD Protection.
100% tested at 125 ℃ for K.
Custom sensitivity / Temp
erature selection are available.
Applications
High temperature Fan motor
3 phase BLDC motor application
Speed sensing
Position sensing
Current sensing
Revolution counting
Solid-State Switch
Linear Position Detection
Angular Position Detection
Proximity Detection
High ESD Capability
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Page 1 of 4
Rev. 1.03
MH188 Specifications
Ultra High Sensitivity Hall Effect Latch
Ordering Information
XXXXXXXXX - X
Sorting Code
Package type
Temperature Code
Part number
Company Name and Product Category
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.
MH188KUA
MH188KSO
MH188EUA
MH188ESO
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
V
DD
Out
Voltage
Regulator
Amp
Hall
Sensor
Clock
GND
100916
Page 2 of 4
Rev. 1.03
MH188 Specifications
Ultra High Sensitivity Hall Effect Latch
Absolute Maximum Ratings
At (Ta=25
℃
)
Characteristics
Supply voltage, (V
DD
)
Output Voltage,(V
out
)
Reverse voltage, (V
DD
)
Output current, (Iout)
Operating Temperature Range, (Ta)
“E” version
“K” version
Storage temperature range, (Ts)
Maximum Junction Temp,(Tj)
Thermal Resistance
(θ
ja
)
UA / SO
(
θ
jc
) UA / SO
Package Power Dissipation, (P
D
)
UA / SO
Values
28
28
-28/-0.3
50
-40 to +85
-40 to +125
-65 to +150
150
206 / 543
148 / 410
606 / 230
Unit
V
V
V
mA
℃
℃
°
C
°
C
℃/W
℃/W
mW
Note:
Do not apply reverse voltage to
V
DD
and V
OUT
Pin, It may be caused for Miss function or damaged device.
Electrical Specifications
Supply Voltage,(V
DD
)
Supply Current,(I
DD
)
Output Saturation Voltage, (V
sat
)
Output Leakage Current, (I
off
)
Internal Oscillator Chopper
Frequency,(f
OSC
)
Output Rise Time, (T
R
)
Output Fall Time, (T
F
)
Electro-Static Discharge
Operate Point,(B
OP
)
Release Point,(B
RP
)
Hysteresis,(B
HYS
)
DC Operating Parameters
：
T
A
=+25
℃
, V
DD
=12V
Parameters
Test Conditions
Operating
B<BOP
Iout=20mA,B>BOP
IOFF B<BRP, VOUT = 12V
Min
2.5
Typ
Max
26.0
5.0
400.0
10.0
Units
V
mA
mV
uA
kHz
69
R
L
=1.1KΩ, CL =20pF
R
L
=820Ω; CL =20pF
HBM
UA(SO)
UA(SO)
0.04
0.18
4
5(-25)
-25(5)
30
0.45
0.45
25(-5)
-5(25)
uS
uS
KV
Gauss
Gauss
Gauss
Typical application circuit
Vcc
R
VDD(1)
Out(3)
R：1KΩ
C1：10nF
C2：1nF
C1
MH188
Gnd(2)
Output
C2
100916
Page 3 of 4
Rev. 1.03
MH188 Specifications
Ultra High Sensitivity Hall Effect Latch
Sensor Location, Package Dimension and Marking
MH188
Package
Hall Chip location
2.00
UA Package
0.9
188
XXX
Hall Sensor
Location
Mark
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
interface.
4).PINOUT:
Pin 1
Pin 2
Pin 3
V
DD
V
DD
1
2
3
Output Pin Assignment
(Top view)
188
XXX
GND
Out
GND
Output
SO Package
(Top View)
Hall Plate Chip Location
(Bottom view)
3
3
0.80
188XX
1
2
Hall Sensor
Location
2
1
1.45
NOTES:
1. PINOUT (See Top View at left :)
Pin 1
Pin 2
Pin 3
V
DD
Output
GND
2. Controlling dimension: mm
3. Lead thickness after solder plating
will be 0.254mm maximum
100916
Page 4 of 4
Rev. 1.03
嵌入式系统
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