MRMS211L
High accuracy type
MR sensor
MRMS211 is optimal magnetic sensor for applications which require precise control of the detection range.
NEC's original thin film control technology contributed to highly improved magnetic field sensitivity range
as well as temperature characteristics.
[Application Examples]
• Mobile phones, notebook PCs and PDAs requiring high accuracy detection angle
• Slider phones requiring high accuracy position detection
• Applications requiring minimization of temperature dependence
FEATURES
■
MRMS211 is narrow sensitivity type MR sensor which features Min-Max 0.6mT sensitivity range
(includes hysteresis) at ambient temperature.
Operating magnetic field ranges are available in 3 sensitivity level(H, M, L) as shown in the table below.
Unit: mT
Series Name
Sensitivity
Hoff Min
Hon Max
0.8
1.4
H
MRMS211
1.2
1.8
M
1.6
2.2
L
■
Improved temperature characteristics with built-in temperature-compensated circuit.
⊿Hon
=
±0.20mT
at Ta-40 to+85[
o
C]
■
Realized low voltage of operating(1.6 to 3.5V), low power consumption(Typ 6µW (Vcc=1.8V))
■
Detecting horizontal magnetic flux density. No dependence on Magnetic field polarity.
■
Operating temperature
−40
to +85
■
RoHS Compliant, Halogen Free
DIMENSIONS
(Unit: mm)
0.4
+0.1
-0.05
0.16
+0.1
-0.06
+0.15
-0.1
0.6
Ｇnd
2.8
±0.2
+0.2
-0.1
1.6
0 ∼0.1
Ｖcc
Ｏut
0.95
0.95
0.8
±0.1
1.1
±0.1
2.9
±0.2
FUNDEMENTAL OPERATION
Direction of Magnetic Field
Circuit Block
Vcc
R1
R2
Op-Amp
Temperature
compensation
Circuit
Latch
and
Switch
CMOS
Driver
Out
R3
R4
Gnd
The intermittent switch circuit inside
R1-R4:MR Elements
PERFORMANCE
Performance Characteristics
(Ta=25±3ºC)
Operating require Condition
When power switch is ON
When magnetic field is applied
H = 0mT(Magnetic Flux Density)
{0 A/m (Magnetic Field Strength)}
H
≧
2.2mT (Magnetic Flux Density)
{1.8kA/m (Magnetic Field Strength)}
When magnetic field is applied
H
≦
1.6mT(Magnetic Flux Density)
{1.3kA/m (Magnetic Field Strength)}
Hi-level
Output Voltage
Hi-level
Lo-level
Operating Conditions Recommended
(Ta = 25±3ºC unless otherwise specified)
Item
Supply Voltage
Supply Current
Ambient Temperature
Symbol
-
(AVG)
-
VOH
Condition
-
Vcc=1.8V
-
Vcc=1.8V
Iout=1mA
VCC=1.8V
Iout=-1mA
25±3ºC
Min
1.6
-
-40
1.6
-
-
-
1.6
1.4
*1)
Std
1.8
3.0
25
-
-
-
-
-
-
Max
3.5
-
85
-
0.2
2.2
2.4
Unit
V
µA
ºC
V
V
Output Voltage
VOL
Hon
-40∼+85ºC
Operating Magnetic Field
25±3ºC
Hoff
-40∼+85ºC
-
1 [mT](SI) = 10 [G] (CGS)
-
mT
(*1
ABSOLUTE MAXIMUM RATINGS
(Ta=25±3ºC unless otherwise specified)
Item
Supply Voltage
Storage Temperature
Condition
-
-
Specifications
6.0
-40 ~ +125
Unit
V
ºC
ESD PROTECTION
Human Body Model (HBM) tests according to: MIL-STD-883D Method: 3015.7
Limited Values
Parameter
Symbol
Min
Max
R=1.5kΩ
ESD Voltage
V
ESD
±4.0
kV
C=100pF
T=25℃
Unit
Notes
Temperature Characteristics
Sensitivity Temperature Characteristic (typical)
5
Operating Magnetic Flux Density
[mT]
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
-50
-30
-10
10
30
50
Temperature [deg]
70
90
MRMS*11L
MRMS*11M
MRMS*11H
RECOMMENDED MOUNT PAD
(Unit: mm)
0.8
1.0
0
.
95
1.9
0.95
2.4
NEC Corporation
Sales and Marketing Department
(Shin Tamachi Building) 34-6, Shiba 5-chome, Minato-ku,
Tokyo 108-0014, Japan
Tel: +81-3-3798-5864 Fax: +81-3-3798-5857
http://www.sw.nec.co.jp/on/dd/en/
EWV-19-0246-01E, July, 2009
Copyright © 2009 NEC Corporation
NEC Electronics (Europe) GmbH
Sales and Marketing of semiconductors across Europe
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Tel: +49-211-6503-0 FAX:+49-211-6503-1344
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