New Product DATA SHEET
MR Sensor
MRUS51S
Micro power Built-in IC ultra-minimum MR sensor
1.FEATURES
High-sensitivity (1.5mT(typ.) ) & Ultra-minimum Size & Low source supply
*Micro power (6µW(typ):Vcc=1.8V)
(suited for battery-operation)
*Ultra-small size
MR(Magneto-resistance)sensor
Volume and mounting area are
70% smaller
than MRSS22L.
*
Height is about
50 % lower
than
MRSS22L.
*Operating in one way magnetic field
*Operating with independent pole
(easily manufacture)
*Superior Temperature stability
*Lead free goods
2.Fundamental Operation
2-1.Direction of Magnetic Field
1.Dimension (Unit:mm)
Gnd
1.45
1.2
Vcc
Out
1.4
Max0.55
2-2.Circuit Block
Ｖ½½
Ｒ1
Ｒ2
SAMPLING
LOGIC
LATCH
C-MOS
Operation
ＯＵＴ
Op-Amp
Ｒ3
Ｒ4
SWITCH
R1 ∼R4 ：MR Elements
ＧＮＤ
2-3.Performance Characteristics (25+3 ˚C)
Operating require
Condition
When power switch is ON
When magnetic field is applied
When magnetic field is applied
H = 0 mT (
Magnetic Flux Density)
H
≧2.2
mT
(
Magnetic Flux Density)
H
≦0.5
mT
(
Magnetic Flux Density
)
Output
Voltage
Hi-level
Lo-level
Hi-level
New Product DATA SHEET
MR Sensor
MRUS51S
3.Performance
3-1.Operating Conditions Recommended
(Ta = 25+3 ˚C unless otherwise specified)
Item
Supply Voltage
Supply Current
Ambient
Temperature
Output Voltage
VOL
Hi-level
output
Hon
Lo-level
output
Hoff
Output
-
-
-
VOH
Condition
-
Vcc=1.8V
-
Vcc=1.8V
Iout=1mA
VCC=1.8V
Iout=-1mA
25+3˚C
Min
1.6
-
-40
1.6
-
-
Std
1.8
3
25
-
-
1.5
(1.4)
-
Max
3.5
-
85
-
0.2
Unit
V
µA
ºC
V
V
mT
(*1
(kA/m)
2.2
(1.8)
-
Operating Magnetic
Field
25+3˚C
*1)
0.5
(0.4)
1 [mT](SI) = 10 [G] (CGS)
3-2.Absolute Maximum Ratings
(Ta = 25+3 C˚ unless otherwise specified)
Item
Supply Voltage
Storage
Temperature
Condition
-
-
Specifications
6.0
-40 ~ +125
Unit
V
˚C
The products and product specifications described in this material are subject to change without notice
for reasons of modification or improvement.
New Product DATA SHEET
MR Sensor
MRUS51S
3-3.
Recommended mounting Pad
0.5
0.5
0.45
0.45
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
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