Monolithic Hall Effect ICs
EM-6781
Omnipolar Hall
Effect Switch
Supply Voltage
1.6∼5.5Ｖ
●Operational Characteristics
Vout
V
OH
Marking
Shipped in packet-tape reel(3000pcs/Reel)
EM-6781 is ultra-small Hall effect ICs of a single silicon chip composed of Hall element and a signal processing IC.
Hall Element
Pulse
Excitation
High Sensitivity
Bop 3mT
：
Output
CMOS
SMT
H
1 VDD
：
2 VSS
：
1
3
3 OUT
：
N or S
BhN
V
OL
BopN BrpN 0
N-pole
BrpS
BopS
S-pole
BhS
L
Magnetic flux density
●Functional Block Diagram
1:VDD
Item
Symbol
Limit
−
0.1
∼
6.0
Unit
V
mA
℃
℃
Dynamic
Offset Cancellator
●Absolute Maximum Ratings（Ta=25℃）
Switch
Supply Voltage
VDD
Output Current
I
out
Operating Temperature Range
Topr
Storage Temperature Range
Tstg
3:OUT
±0.5
−
30
∼
85
−
40
∼
125
2:Vss
Pulse
Hall
Chopper Amplifier
Regulator Element Stabilizer
Schmitt
trigger
&Latch
Output
Stage
●Magnetic
q
and Electrical Characteristics（Ta=25℃ VDD=1.85V）
Item
Supply Voltage
Operating Point
Release Point
Hysteresis
P e r i o d
Output High Voltage
Output Low Voltage
Supply Current
Symbol
VDD
Conditions
Min.
1.6
1.4*
1.1
0.3*
3.0
2.2
0.8
50
Io=−0.5mA
Io=＋0.5mA
Average
6.5
VDD−0.4
0.4
9
Typ. Max. Unit
5.5
4.0
3.7*
1.5*
100
V
mT
mT
mT
ms
V
V
●Magnetic Characteristics
w
（Ta=−30℃∼85℃ VDD=1.85V）
Item
Symbol
Conditions
Min.
1.2
0.9
0.1
Typ. Max. Unit
3.0
2.2
0.8
4.4
4.1
1.7
mT
mT
mT
B S
Operating Point
I
B
OP
N
I
OP
Release
Point
I
B
OP
N
I
I
BrpN
I
I
B h N
I
Tp
V
OH
V
OL
IDD
BhS
BrpS
B
OP
S
I
BrpN
I
I
BhN
I
BhS
BrpS
Hysteresis
Note) The above specifications are design targets.
●Application Circuit
GND
VSS
μA
Bypass Capacitor
0.1μF
EM-6781
VDD
OUT
CMOS
1
［mT½ ［Gauss½
=10
The characteristics with「*」marks are design targets.
VDD
47
EM-6781
•Please be aware that our products are not intended for use in life support equipment, devices, or systems. Use of our products in such applications requires the
advance written approval of our sales staff.
Certain applications using semiconductor devices may involve potential risks of personal injury, property damage, or loss of life. In order to minimize these risks,
adequate design and operating safeguards should be provided by the customer to minimize inherent or procedural hazards. Inclusion of our products in such
applications is understood to be fully at the risk of the customer using our devices or systems.
b
●Package
（Unit:mm)
3.0
±0.1
0.4
2
5°
φ0.3
Sensor Center
●(For
reference only)Land Pattern
（Unit:mm)
0.11
5°
0.3
0.70
1.00
2.2
±0.1
3.1
±0.1
0.48
5°
0.70
1.00
0.70
0.3
5
°
1
0.95
0.95
3
0.3
5
°
0.0
±0.05
1 Vcc
：
2 GND
：
3 OUT
：
Note) The sensor center is
located within the φ0.3mm circle.
1.0
±0.1
0.75
2.60
5°
f
0.95
0.95
5°
5
°
Pin No. Connection Function
1
VDD Supply Voltage
2
VSS
GND
3
OUT Output Voltage
●Supply Voltage
6
5
Supply Voltage
［V½
4
3
2
1
0
−40
−20
0
20
40
60
80
100
Ambient Temperature
［℃½
●IDD Pulse Driving
（VDD=1.85V）
I
DD
146μs
50ms
i
I
DD ON
（TYP : 1.8mA）
I
DD
（TYP : 6.5μA）
I
DD OFF
（TYP : 1.3μA）
time
●Temparature Dependence of Bop. Brp
6
4
2
BrpS
0
−2
−4
−6
−50
VDD＝1.85V
BrpN
BopN
●Function Timing Chart
IDD
IDD
Operating Point
［mT½
BopS
B
Bop
t
B
Brp
t
n
o
t
48.8μs
Vout
High
t
48.8μs
Vout
High
p
0
50
100
Low
t
Operating Point Timing
Low
t
Release Point Timing
Ambient Temperature
［℃½
Th is H a l l IC’ o u t p u t i s h e l d a s i n t e rn a l d a t a j u s t b e fo r e t h e i n t e r n a l c irc uit
s
t u r n s O F F ( I D D O F F ) . A n d a f t e r 4 8 . 8 μs , t h e o u t p u t c h a n g e s .
N o t e ) 4 8 . 8 μs i n f i g u r e s i s t y p i c a l v a l u e
48
IMPORTANT NOTICE
These products and their specifications are subject to change without notice.
When you consider any use or application of these products, please make
inquiries the sales office of Asahi Kasei Microdevices Corporation (AKM) or
authorized distributors as to current status of the products.
Descriptions of external circuits, application circuits, software and other related
information contained in this document are provided only to illustrate the
operation and application examples of the semiconductor products. You are
fully responsible for the incorporation of these external circuits, application
circuits, software and other related information in the design of your
equipments. AKM assumes no responsibility for any losses incurred by you or
third parties arising from the use of these information herein. AKM assumes no
liability for infringement of any patent, intellectual property, or other rights in
the application or use of such information contained herein.
Any export of these products, or devices or systems containing them, may
require an export license or other official approval under the law and
regulations of the country of export pertaining to customs and tariffs, currency
exchange, or strategic materials.
AKM products are neither intended nor authorized for use as critical
components
Note1)
in any safety, life support, or other hazard related device or
system
Note2)
, and AKM assumes no responsibility for such use, except for the
use approved with the express written consent by Representative Director of
AKM. As used here:
Note1) A critical component is one whose failure to function or perform
may reasonably be expected to result, whether directly or indirectly, in the
loss of the safety or effectiveness of the device or system containing it,
and which must therefore meet very high standards of performance and
reliability.
Note2) A hazard related device or system is one designed or intended for
life support or maintenance of safety or for applications in medicine,
aerospace, nuclear energy, or other fields, in which its failure to function
or perform may reasonably be expected to result in loss of life or in
significant injury or damage to person or property.
It is the responsibility of the buyer or distributor of AKM products, who
distributes, disposes of, or otherwise places the product with a third party, to
notify such third party in advance of the above content and conditions, and
the buyer or distributor agrees to assume any and all responsibility and
liability for and hold AKM harmless from any and all claims arising from the
use of said product in the absence of such notification.
April 4, 2012
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