Hall IC Series
Omnipolar Detection Hall ICs
(Polarity detection for
both S and N features dual outputs)
BU52004GUL, BU52014HFV
No.10045EDT01
●Description
The BU52004GUL and BU52014HFV are bipolar Hall ICs incorporating a polarity determination circuit that enables
operation (output) on both the S- and N-poles, with the polarity judgment based on the output processing configuration.
These Hall IC products can be in with movie, mobile phone and other applications involving crystal panels to detect the
(front-back) location or determine the rotational direction of the panel.
●Features
1) Omnipolar detection (polarity detection for both S and N features dual outputs)
2) Micropower operation (small current using intermittent operation method)
3) Ultra-compact CSP4 package(BU52004GUL)
4) Small outline package (BU52014HFV)
5) Line up of supply voltage
For 1.8V Power supply voltage (BU52014HFV)
For 3.0V Power supply voltage (BU52004GUL)
6) Polarity judgment and output on both poles (OUT1: S-pole output; OUT2: N-pole output)
7) High ESD resistance 8kV(HBM)
●Applications
Mobile phones, notebook computers, digital video camera, digital still camera, etc.
●Product
Lineup
Product name
BU52004GUL
BU52014HFV
Supply
voltage
(V)
2.40½3.30
1.65½3.30
Operate point
(mT)
+/-3.7
+/-3.0
※
※
Hysteresis
(mT)
0.8
0.9
Period
(ms)
50
50
Supply current
(AVG. )
(μA)
8.0
5.0
Output type
CMOS
CMOS
Package
VCSP50L1
HVSOF5
※Plus
is expressed on the S-pole; minus on the N-pole
●Absolute
Maximum Ratings
BU52004GUL (Ta=25℃)
PARAMETERS
Power Supply Voltage
Output Current
Power Dissipation
Operating Temperature Range
Storage Temperature Range
※1.
Not to exceed Pd
※2.
Reduced by 4.20mW for each increase in Ta of 1℃ over 25℃
(mounted on 50mm×58mm Glass-epoxy PCB)
SYMBOL
V
DD
I
OUT
Pd
Topr
Tstg
LIMIT
-0.1 ~ +4.5
※
1
±1
420
※
2
-40 ~ +85
-40 ~ +125
UNIT
V
mA
mW
℃
℃
BU52014 HFV (Ta=25℃)
PARAMETERS
Power Supply Voltage
Output Current
Power Dissipation
Operating Temperature Range
Storage Temperature Range
※3.
Not to exceed Pd
※4.
Reduced by 5.36mW for each increase in Ta of 1℃ over 25℃
(mounted on 70mm×70mm×1.6mm Glass-epoxy PCB)
SYMBOL
V
DD
I
OUT
Pd
Topr
Tstg
LIMIT
-0.1 ~ +4.5
※
3
±0.5
536
※
4
-40 ~ +85
-40 ~ +125
UNIT
V
mA
mW
℃
℃
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© 2010 ROHM Co., Ltd. All rights reserved.
1/11
2010.01 - Rev.D
BU52004GUL, BU52014HFV
●Magnetic,
Electrical Characteristics
BU52004GUL (Unless otherwise specified, V
DD
＝3.0V,
Ta＝25℃)
LIMIT
PARAMETERS
SYMBOL
MIN
TYP
Power Supply Voltage
V
DD
2.4
3.0
B
opS
Operate Point
B
opN
B
rpS
Release Point
B
rpN
Hysteresis
Period
Output High Voltage
Output Low Voltage
Supply Current
Supply Current During Startup Time
Supply Current During Standby Time
B
hysS
B
hysN
T
p
V
OH
V
OL
I
DD(AVG)
I
DD(EN)
I
DD(DIS)
-
-
-
-
V
DD
-0.4
-
-
-
-
-2.9
0.8
0.8
50
-
-
8
4.7
3.8
-0.8
-
-
100
-
0.4
12
-
-
mT
ms
V
V
μA
mA
μA
-5.5
0.8
-3.7
2.9
-
-
mT
-
3.7
Technical Note
MAX
3.3
5.5
UNIT
V
mT
CONDITIONS
OUTPUT：OUT1
(respond the south pole)
OUTPUT：OUT2
(respond the north pole)
OUTPUT：OUT1
(respond the south pole)
OUTPUT：OUT2
(respond the north pole)
※
5
B
rpN
<B<B
rpS
I
OUT
=-1.0mA
※
5
B<B
opN
, B
opS
<B
I
OUT
=+1.0mA
Average
During Startup Time Value
During Standby Time Value
※5.
B = Magnetic flux density
1mT=10Gauss
Positive (“+”) polarity flux is defined as the magnetic flux from south pole which is direct toward to
the branded face of the sensor.
After applying power supply, it takes one cycle of period (T
P
) to become definite output.
Radiation hardiness is not designed.
BU52014HFV (Unless otherwise specified, V
DD
＝1.80V,
Ta＝25℃)
LIMIT
PARAMETERS
SYMBOL
MIN
TYP
Power Supply Voltage
V
DD
1.65
1.80
B
opS
Operate Point
B
opN
B
rpS
Release Point
B
rpN
Hysteresis
Period
Output High Voltage
Output Low Voltage
Supply Current 1
Supply Current During Startup Time 1
Supply Current During Standby Time 1
Supply Current 2
Supply Current During Startup Time 2
Supply Current During Standby Time 2
B
hysS
B
hysN
T
p
V
OH
V
OL
I
DD1(AVG)
I
DD1(EN)
I
DD1(DIS)
I
DD2(AVG)
I
DD2(EN)
I
DD2(DIS)
-
-
-
-
V
DD
-0.2
-
-
-
-
-
-
-
-2.1
0.9
0.9
50
-
-
5
2.8
1.8
8
4.5
4.0
-5.0
0.6
-3.0
2.1
-
3.0
MAX
3.30
5.0
UNIT
V
mT
CONDITIONS
OUTPUT：OUT1
(respond the south pole)
OUTPUT：OUT2
(respond the north pole)
OUTPUT：OUT1
(respond the south pole)
OUTPUT：OUT2
(respond the north pole)
-
-
mT
-0.6
-
-
100
-
0.2
8
-
-
12
-
-
mT
ms
V
V
μA
mA
μA
μA
mA
μA
※
B
rpN
<B<B
rpS
I
OUT
=-0.5mA
6
※
B<B
opN
, B
opS
<B
I
OUT
=+0.5mA
V
DD
=1.8V, Average
V
DD
=1.8V,
During Startup Time Value
V
DD
=1.8V,
During Standby Time Value
V
DD
=2.7V, Average
V
DD
=2.7V,
During Startup Time Value
V
DD
=2.7V,
During Standby Time Value
6
※6.
B = Magnetic flux density
1mT=10Gauss
Positive (“+”) polarity flux is defined as the magnetic flux from south pole which is direct toward to
the branded face of the sensor.
After applying power supply, it takes one cycle of period (T
P
) to become definite output.
Radiation hardiness is not designed.
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/11
2010.01 - Rev.D
BU52004GUL, BU52014HFV
●Figure
of measurement circuit
Technical Note
B
op
/B
rp
T
p
200Ω
VDD
VDD
100μF
GND
OUT
V
VDD
VDD
Oscilloscope
GND
OUT
Bop and Brp are measured with applying the magnetic field
from the outside.
Fig.1
B
op
,B
rp
measurement circuit
The period is monitored by Oscilloscope.
Fig.2
T
p
measurement circuit
V
OH
Product Name
BU52004GUL
VDD
I
OUT
1.0mA
0.5mA
VDD
BU52014HFV
I
OUT
100μF
GND
OUT
V
Fig.3
V
OH
measurement circuit
V
OL
Product Name
BU52004GUL
VDD
I
OUT
1.0mA
0.5mA
BU52014HFV
OUT
VDD
100μF
GND
V
I
OUT
Fig.4
V
OL
measurement circuit
I
DD
A
2200μF
VDD
OUT
GND
VDD
Fig.5
I
DD
measurement circuit
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© 2010 ROHM Co., Ltd. All rights reserved.
3/11
2010.01 - Rev.D
BU52004GUL, BU52014HFV
●Technical
(Reference) Data
BU52004GUL (V
DD
=2.4V½3.3V type)
8.0
6.0
4.0
2.0
0.0
-2.0
-4.0
-6.0
-8.0
-60 -40 -20 0
20 40 60 80 100
AMBIENT TEMPERATURE [
℃
]
Bop N
Brp N
Brp S
Technical Note
8.0
MAGNETIC FLUX DENSITY [mT]
V
DD
=3.0V
Bop S
6.0
4.0
2.0
0.0
-2.0
-4.0
-6.0
-8.0
2.0
Ta = 25°C
Bop S
Brp S
PERIOD [ms]
Brp N
Bop N
100
95
90
85
80
75
70
65
60
55
50
45
40
MAGNETIC FLUX DENSITY [mT]
V
DD
=3.0V
2.4
2.8
3.2
3.6
-60 -40 -20 0
20 40 60 80 100
SUPPLY VOLTAGE
［
V
½
AMBIENT TEMPERATURE [
℃
]
Fig.6 Bop,Brp –
Ambient temperature
90
80
PERIOD [ms]
70
60
50
40
30
20
10
0
2.0
2.4
2.8
3.2
SUPPLLY VOLTAGE[V]
3.6
Fig.7 Bop,Brp –
Supply voltage
AVERAGE SUPPLY CURRENT [µA]
20.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
-60 -40 -20 0
20 40 60 80 100
V
DD
=3.0V
AVERAGE SUPPLY CURRENT [µA]
Fig.8 T
P
– Ambient
temperature
20.0
18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
2.0
2.4
2.8
3.2
3.6
SUPPLY VOLTAGE [V]
100
Ta = 25°C
18.0
Ta = 25°C
AMBIENT TEMPERATURE [
℃
]
Fig.9 T
P
– Supply voltage
BU52014HFV (V
DD
=1.65V½3.3V type)
MAGNETIC FLUX DENSITY [mT]
MAGNETIC FLUX DENSITY [mT]
Fig.10 I
DD
– Ambient
temperature
Fig.11 I
DD
– Supply voltage
8.0
6.0
4.0
2.0
0.0
-2.0
-4.0
-6.0
-8.0
-60 -40 -20 0
20 40 60 80 100
Brp S
Brp N
Bop N
V
DD
=1.8V
8.0
6.0
4.0
2.0
0.0
-2.0
-4.0
-6.0
-8.0
1.4
1.8
2.2
2.6
3.0
3.4
SUPPLY VOLTAGE
［
V
½
100
Ta = 25°C
90
Bop S
Bop S
PERIOD [ms]
80
70
60
50
40
30
20
10
0
V
DD
=1.8V
Brp S
Brp N
Bop N
-60 -40 -20 0 20 40 60 80 100
AMBIENT TEMPERATURE [
℃
]
AMBIENT TEMPERATURE [
℃
]
Fig.12 Bop,Brp –
Ambient temperature
100
90
80
PERIOD [ms]
70
60
50
40
30
20
10
0
1.4
1.8
2.2
2.6
3.0
3.4
3.8
SUPPLY VOLTAGE [V]
Fig.13
AVERAGE SUPPLY CURRENT [µA]
20.0
18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
Bop,Brp – Supply voltage
AVERAGE SUPPLY CURRENT [µA]
20.0
18.0
16.0
14.0
12.0
10.0
8.0
6.0
4.0
2.0
0.0
1.4
Fig.14 T
P
– Ambient
temperature
Ta = 25°C
Ta = 25°C
V
DD
=1.8V
-60 -40 -20 0
20 40 60 80 100
1.8
2.2
2.6
3.0
3.4
AMBIENT TEMPERATURE [
℃
]
SUPPLY VOLTAGE[V]
Fig.15 T
P
– Supply voltage
Fig.16 I
DD
– Ambient
temperature
Fig.17 I
DD
– Supply voltage
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© 2010 ROHM Co., Ltd. All rights reserved.
4/11
2010.01 - Rev.D
BU52004GUL, BU52014HFV
●Block
Diagram
BU52004GUL
VDD
A1
Technical Note
0.1µF
Adjust the bypass capacitor value
as
LATCH
TIMING LOGIC
necessary,
according
to
voltage noise conditions, etc.
HALL
DYNAMIC
OFFSET
CANCELLATION
B1
OUT1
ELEMENT
The CMOS output terminals enable direct
GND
VDD
×
SAMPLE
& HOLD
connection to the PC, with no external pull-up
resistor required.
LATCH
B2
OUT2
A2
GND
Fig.18
PIN No.
A1
A2
B1
B2
PIN NAME
VDD
GND
OUT1
OUT2
FUNCTION
POWER SUPPLY
GROUND
OUTPUT( respond the south pole)
OUTPUT( respond the north pole)
B1
B2
B2
B1
COMMENT
A1
A2
A2
A1
Surface
Reverse
BU52014HFV
VDD
4
0.1μF
TIMING LOGIC
HALL
DYNAMIC
OFFSET
CANCELLATION
5
OUT1
ELEMENT
Adjust the bypass capacitor
value as necessary, according to
voltage noise conditions, etc.
The CMOS output terminals enable
direct connection to the PC, with no
external pull-up resistor required.
SAMPLE
& HOLD
LATCH
×
GND
VDD
LATCH
1
OUT2
2
Fig.19
PIN No.
1
2
3
4
5
PIN NAME
OUT2
GND
N.C.
VDD
OUT1
POWER SUPPLY
OUTPUT
( respond the south pole)
FUNCTION
OUTPUT
( respond the north pole)
GROUND
OPEN or Short to GND.
COMMENT
GND
5
4
4
5
1
2
3
Surface
3
2
1
Reverse
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© 2010 ROHM Co., Ltd. All rights reserved.
5/11
2010.01 - Rev.D
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