SONY DM-106B

DM-106B
Magnetoresistance Element
For the availability of this product, please contact the sales office.
Description
The DM-106B is a highly sensitive magnetoresistance element composed of an evaporated
ferromagnetic alloy on a silicon substrate. (The
element can be used for automatic shut off of tape
recorders, as a contactless switch, and as a general
detector of rotational motion.)
M-110
(Plastic)
Features
• Low power consumption
11 mW (Typ.)
VCC=5 V
• Low magnetic field and high sensitivity
80 mVp-p (Typ.)
VCC=5 V
H=8000 A/m
• High reliability
Ensured through silicon
Nitride protective filming
Structure
Thin-film nickel-cobalt magnetic alloy on silicon
substrate
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
VCC
10
• Operating temperature
Topr
–40 to +100
• Storage temperature
Tstg
–50 to +125
Recommended Operating Supply voltage
V
°C
°C
5
V
Electrical Characteristics
Item
(Ta=25 °C)
Symbol
Total resistance
RT
Midpoint potential
VC
Output voltage
VO
Condition
VCC=5 V , H=8000 A/m
Revoiving magnetic field
VCC=5 V , H=8000 A/m
Revoiving magnetic field
VCC=5 V , H=8000 A/m
Revoiving magnetic field
Min.
Typ.
Max.
Unit
1.4
2.3
3.7
kΩ
2.45
2.50
2.55
V
60
80
mVp-p
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
—1—
E60142D5X-TE
DM-106B
Equivalent Circuit
H
θ
RA
1
RB
2
RB min
RA max
3
RA : Resistance reduces as the
magnetic field revolves.
RB : Resistance increases as the
magnetic field revolves.
2
1
3
Introduction
1. Power supplying pin output pin
106
B
321
1
RA
2
RB
VCC
3
2. Sensitive direction vs. Midpoint potential
c
d
b
a
e
Direction of Magnetic-flux
Incidence
Midpoint potential
a
e
Sensitive
Non-sensitive
VCC
2
d
b
HS
Direction of Magnetic-flux
Incidence
H
c
Useful Region
Changes occur to the output voltage at the saturation region
of V-H curve according to the direction of magnetic flux.
These changes provide for the operation.
• With one rotation of magnetic flux, signals for 2 periods are
obtained.
—2—
DM-106B
Applications
1. Detection of revolution
N
S
S
N
N
S
NS
SN S
N
2. Position detecting
Circuits
S
N
VCC
AA
AA
r1
r2
Differenntial
Amplifier
3. Bridge Circuits
AAAAAAAAAA
A
AA
A
AAAAAAAAAA
A
AAA
106
B
Output
106
B
By coupling 2 pieces back to back and sticking them
together in a gridge, the output voltage is doubled.
Notes on Application
• Execute the solder to the lead line within 10 seconds at a temperature below 260 °
• To Fix the ELEMENTS : When glue is used, DO NOT apply mechanical stress to the elements.
—3—
DM-106B
Midpoint potential vs. Direction of magnetic-flux incidence
Midpoint potential vs. Magnetic field intensity
2.55
2.55
VCC=5V
2.53
VC-Midpoint potential (V)
106B
2.52
2.51
2.50
GND VCC
2.49
106B
VC-Midpoint potential (V)
2.53
2.54
GND VCC
2.54
2.48
1. VCC=5V
H=12000A/m
2. Output
3. GND
2.52
2.51
2.50
2.49
H
106B
2.47
2.47
2.46
2.46
2.45
0
2.45
0
4000
8000
12000
16000
θ
2.48
321
45
90
135
180
225
θ-Direction of magnetic-flux incidence (deg)
H-Revolving magnetic field intensity (A/m)
Total resistance, output voltage vs. Temperature
Output voltage vs. Magnetic field intensity
100
VO-Output voltage (mVp-p)
VO-Output voltage (mVp-p)
60
40
120
110
H=8000A/m
(Revolving magnetic field)
VCC=5V
100
3.0
RT
2.5
90
80
2.0
70
VO
60
20
50
1.5
0
0
4000
8000
12000
16000
—50 —25 0
H-Revolving magnetic field intensity (A/m)
Derating Curve
4
IIN-Input current (mA)
VCC=10V
3
2
1
0
0
40
80
120
75 100 125 150
Ta-Ambient temperature (°C)
5
—40
25 50
160
Ta-Ambient temperature (°C)
—4—
RT-Total Resistance (kΩ)
VCC=5V
80
DM-106B
Unit : mm
M-110
3.0 ± 0.2
0.4
4.0 ± 0.2
0.7
0.5
0.8
1.8
0.5
12 MIN
0.8
0.6
0.4
2.0 ± 0.2
1.27
0.25 ± 0.1
1.27
1.2 ± 0.1
Package Outline
SONY CODE
M-110
EIAJ CODE
JEDEC CODE
PACKAGE WEIGHT
—5—
0.09g