NEC MRSS31U

DATA SHEET
MR Sensor
MRSS31U
Micro power Built-in IC ultra-minimum MR sensor
FEATURES
and High-sensitivity(2mT(typ))
(suited for battery-operation)
0.3 +0.1
-0.05
*Ultra-small size
0.15
(easily manufacture)
0.4 ±0.1
1 .6
Vcc
*Operating with independent pole
Out
0.6 5
0.65
*Superior Temperature stability
*Lead free goods
2.0± 0.2
Ma x0.8
2.Fundamental Operation
2-1.Direction of Magnetic Field
2-2.Circuit Block
Vcc
SWITCH
R1
R2
SAMPLING
LOGIC
LATCH
Op-Amp
R3
OUT
MOS
Operation
R4
GND
R1 ∼R4 :MR Elements
2-3.Performance Characteristics (25±3ºC)
When power switch is ON
When magnetic field is applied
When magnetic field is applied
+0.1
-0.05
0 ∼0.05
Gnd
2 .1 ±0.1
MR(Magneto-resistance)sensor
* Volume and mounting area are 50%
smaller than MRSS22L.
* Height is about 4mm lower than
MRSS22L.
*Operating in one way magnetic field
0.25±0.1
1.Dimension (Unit:mm)
*Micro power (15µW(typ):Vcc=3V)
Operating require
Condition
H = 0 mT(Magnetic Flux Density)
[0 A/m (Magnetic Field Strength)]
H ≥ 2.0(Typ)mT(Magnetic Flux Density)
[1.6kA/m (Magnetic Field Strength)]
H ≤ 0.5 mT (Magnetic Flux Density)
[0.4kA/m(Magnetic Field Strength)]
Output
Voltage
Hi-level
Lo-level
Hi-level
DATA SHEET
MR Sensor
MRSS31U
3.Performance
3-1.Operating Conditions Recommended
(Ta = 25±3ºC unless otherwise specified)
Item
Output
Condition
Min
Std
Max
Unit
Supply Voltage
-
-
2.5
3.0
3.7
V
Supply Current
-
Vcc=3V
-
5
-
µA
Ambient
Temperature
-
-
-20
25
80
ºC
2.7
-
-
V
-
-
0.3
V
-
2.0
(1.6)
2.5
(2.0)
mT(*1
0.5
(0.4)
-
-
VOH
Output Voltage
VOL
Operating Magnetic
Field
Vcc=3V
Iout=2mA
VCC=3V
Iout=-2mA
Hi-level
output
Hon
Lo-level
output
Hoff
*1)
*2)
(kA/m)
(*2
1 [mT](SI) = 10 [G] (CGS)
(
) =
[kA/m](SI)
3-2.Absolute Maximum Ratings
(Ta = 25±3ºC unless otherwise specified)
Item
Condition
Specifications
Unit
Supply Voltage
-
5.0
V
Storage
Temperature
-
-40 ~ +125
ºC
The products and product specifications described in this material are subject to change without notice
for reasons of modification or improvement.
DATA SHEET
MR Sensor
MRSS31U
4. Recommended Mount Pad
1.9
0.8
0.6
0.65
0.65
1.3
( Unit : mm)
The products and product specifications described in this material are subject to change without notice
for reasons of modification or improvement.
NEC Corporation
Fiber Optic Device Division
(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-19-0087-01E, Feb., 2005
Copyright © 2005 NEC Corporation