EM 6781

Monolithic Hall Effect ICs
EM-6781
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.
Omnipolar Hall
Supply Voltage
Effect Switch
1.6∼5.5V
Hall Element
Pulse
Excitation
High Sensitivity
Output
Bop:3mT
CMOS
SMT
●Operational Characteristics
Vout
VOH
H
Marking
1:VDD
2:VSS
3
1
BhN
BhS
VOL
3:OUT
N or S
BopN BrpN 0
N-pole
L
BrpS
BopS
S-pole
●Functional Block Diagram
Magnetic flux density
1:VDD
Switch
Item
Symbol
Limit
Unit
Supply Voltage VDD
−0.1 ∼ 6.0
V
Output Current Iout
±0.5
mA
Operating Temperature Range Topr
−30 ∼ 85
℃
Storage Temperature Range Tstg
−40 ∼ 125
Dynamic
Offset Cancellator
●Absolute Maximum Ratings(Ta=25℃)
2:Vss
Pulse
Hall
Chopper Amplifier
Regulator Element Stabilizer
℃
●Magnetic q and Electrical Characteristics(Ta=25℃ VDD=1.85V)
Item
Supply Voltage
Symbol
Conditions
VDD
Min.
Typ. Max. Unit
1.6
BOPS
Operating Point IBOPNI
1.4*
BrpS
Release Point IBrpNI
BhS
Hysteresis
I B h NI
P e r i o d
Tp
Output High Voltage
VOH
Io=−0.5mA
Output Low Voltage
VOL
Io=+0.5mA
Supply Current
IDD
Average
3:OUT
5.5
3.0
4.0
●Magnetic Characteristics w(Ta=−30℃∼85℃ VDD=1.85V)
Symbol
Item
Conditions
Typ. Max. Unit
1.2
3.0
4.4
mT
mT
Release
0.9
2.2
4.1
mT
B S
H y s t e r e s i s BhN
I h I
0.1
0.8
1.7
mT
3.7*
mT
0.3*
0.8
1.5*
mT
50
100
ms
V
0.4
V
9
μA
Note) The above specifications are design targets.
●Application Circuit
GND
VSS
Bypass Capacitor
0.1μF
EM-6781
VDD
1[mT]=10[Gauss]
OUT
The characteristics with「*」marks are design targets.
VDD
47
Min.
BrpS
Point IB NI
rp
V
2.2
6.5
Output
Stage
B S
Operating Point IBOPNI
OP
1.1
VDD−0.4
Schmitt
trigger
&Latch
CMOS
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
●(For reference only)Land Pattern(Unit:mm)
●Package(Unit:mm)
0.95
1.0±0.1
0.75
1.00
2.60
0.70
1:Vcc
2:GND
3:OUT
f
Note) The sensor center is
located within the φ0.3mm circle.
5°
5°
0.95
0.95
Pin No. Connection Function
1
VDD Supply Voltage
2
VSS
GND
3
OUT Output Voltage
●Supply Voltage
●IDD Pulse Driving(VDD=1.85V)
6
50ms
IDD
146μs
5
Supply Voltage[V]
0.70
0.0±0.05
5°
5°
0.3
5°
3
0.3
1.00
0.95
5°
1
0.3
0.70
3.1±0.1
φ0.3
Sensor Center
5°
0.48
0.11
5°
2.2±0.1
3.0±0.1
0.4
2
i
IDD ON
(TYP : 1.8mA)
4
3
2
IDD
(TYP : 6.5μA)
1
IDD OFF
(TYP : 1.3μA)
time
0
−40
−20
0
20
40
60
80
100
Ambient Temperature[℃]
●Temparature Dependence of Bop. Brp
●Function Timing Chart
IDD
Operating Point[mT]
6
4
BopS
n
2
0
t
B
BrpS
Bop
VDD=1.85V
t
B
o
Brp
BrpN
−2
Vout
High
BopN
−4
−6
−50
IDD
0
50
Ambient Temperature[℃]
100
t
48.8μs
Vout
High
t
48.8μs
Low
Low
t
t
Operating Point Timing
Release Point Timing
This Hall IC’
s o utpu t is h eld as interna l da ta just be fo re the interna l circ uit
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
p
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.
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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
componentsNote1) in any safety, life support, or other hazard related device or
systemNote2), 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
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April 4, 2012