AH1801
MICROPOWER OMNIPOLAR, ULTRA-SENSITIVE HALL
EFFECT SWITCH
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
Micropower operation
Operation with North or South Pole
2.5V to 5.5V battery operation
Inverted Output-on without Magnet present
Chopper stabilized
•
Superior temperature stability
Extremely Low Switch-Point Drift
Insensitive to Physical Stress
Good RF noise immunity
-40°C to 85°C operating temperature
Low profile 3 pin SC59 and DFN2020-6 package
ESD (HBM)
＞
5KV for DFN2020-6
＞
6KV for SC59-3L
Lead Free Finish / RoHS Compliant
SC59 and DFN2020-6: Available in “Green” Molding
Compound (No Br, Sb)
General Description
AH1801 is a Micropower, Ultra-sensitive Hall Effect Switch, which
is with two Hall effect plates and a output driver, mainly designed
for battery–operation, hand-held equipment (such as Cellular and
Cordless Phone, PDA). The total operation power is down to
24uW in the 3V supply.
Either north or south pole of sufficient strength will turn the output
off. The output will be turned on under no magnetic field.
While the magnetic flux density
(B)
is larger than operate point
(Bop),
the output will be turned off, the output is held until
B
is
lower than release point
(Brp),
then turned on.
Applications
•
•
•
Cellular phone
PDA
Cordless phone
Ordering Information
AH1801 - XX X X
Package
W : SC59
SN : DFN2020-6
Note:
Lead Free
Packing
-7 : Taping
G : Green
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see
EU Directive Annex Notes 5 and 7.
Device
AH1801-W
AH1801-SN
Note:
Package Code
W
SN
Packaging
(Note 2)
SC59
DFN2020-6
7” Tape and Reel
Quantity
Part Number Suffix
3000/Tape & Reel
3000/Tape & Reel
-7
-7
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AH1801 Rev. 2
1 of 7
www.diodes.com
MAY 2007
©
Diodes Incorporated
AH1801
MICROPOWER OMNIPOLAR, ULTRA-SENSITIVE HALL
EFFECT SWITCH
Typical Circuit
2.5~5.5V
R
L
Output
AH1801
Gnd
Absolute Maximum Ratings
Symbol
Vdd
B
Ta
Ts
PD
Tj
(at T
A
= 25°C)
Characteristics
Supply voltage
Magnetic flux density
Operating Temperature Range
Storage Temperature Range
Package Power Dissipation
Maximum Junction Temp
SC59/DFN2020-6
Values
7
Unlimited
-40 to +85
-65 to +150
230
150
Unit
V
°C
°C
mW
°C
Recommended Operating Conditions
Symbol
Vdd
Paramter
Supply Voltage
( T
A
= 25°C )
Conditions
Operating
Rating
2.5~5.5
Unit
V
Electrical Characteristics
Symbol
Vout
Ioff
Idd(en)
Idd(dis)
Idd(avg)
Tawake
Tperiod
D.C.
Characteristic
Output On Voltage
Output Leakage Current
Supply Current
Awake Time
Period
Duty Cycle
( T
A
= +25°C, Vdd = 3V ;unless other wise specified)
Conditions
Iout=1mA
Vout=5.5V, B < Brp
Chip enable
Chip disable
average supply current
Min
-
-
-
-
-
-
-
-
Typ
0.1
<0.1
3
5
8
75
75
0.1
Max
0.3
1
6
10
16
125
125
-
Unit
V
µA
mA
uA
uA
µs
ms
%
AH1801 Rev. 2
3 of 7
www.diodes.com
MAY 2007
©
Diodes Incorporated
AH1801
MICROPOWER OMNIPOLAR, ULTRA-SENSITIVE HALL
EFFECT SWITCH
Magnetic Characteristics
Symbol
Bops(south pole to brand side)
Bopn(north pole to brand side)
Brps(south pole to brand side)
Brpn(north pole to brand side)
Bhy(
Bopx
−
Brpx
)
Note:
(T
A
=25°C, Vdd=3V)
(1mT=10 Gauss)
Characteristic
Operate Point
Release Point
Hysteresis
Min
-
-60
10
-
-
Typ
40
-40
30
-30
10
Max
60
-
-
-10
-
Unit
Gauss
4. Typical data is at T
A
=25
°C,
Vdd=3V, and for design information only.
5. Operate point and release point will vary with supply voltage and operating temperature.
Output ( Voltage )
( off-state )
Turn off
Turn off
Turn Turn
on on
( on-state )
-B
B
opn
B
rpn
B
rps
B
ops
+B
Magnetic
Performance Characteristics
(1) SC59 / DFN2020-6
T
A
(°C)
P
D
(mW)
25
230
50
184
60
166
70
147
80
129
85
120
90
110
100
92
110
74
120
55
130
37
140
18
150
0
P
D
(m W )
300
P o w e r D is s ip a tio n C u rv e
200
100
0
0
25
50
75
85
100
125
150
T
A
(。 C )
AH1801 Rev. 2
4 of 7
www.diodes.com
MAY 2007
©
Diodes Incorporated
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