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AH180N Datasheet

MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH

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AH180N pdf
AH180N
MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH
Description
The AH180N is a high sensitivity, micro power Omnipolar Hall Effect
switch IC designed for portable and battery powered equipment such
as cellular phones, PDA’ s and portable PC’ s. Based on two sensitive
Hall Effect plates and a chopper stabilized architecture the AH180N
provides a reliable solution over the whole operating range. To
support portable and battery powered equipment the design has been
optimized to operate over the supply range of 2.5V to 5.5V and
consumes only 24µA with a supply of 3V.
Pin Assignments
The single open drain output can switched on with either a North or
South pole of sufficient strength. When the magnetic flux density (B)
is larger than operate point (Bop) the output is switched on (pulled
low). The output is turned off when B becomes lower than the release
point (Brp). The output will remain off when there is no magnetic field.
Features
Omnipolar (North or South pole) Operation
High Sensitivity
Single Open Drain Output
Micropower Operation
2.5V to 5.5V Operating Range
Chopper Stabilized Design Provides
ƒ Superior Temperature Stability
ƒ Minimal Switch Point Drift
ƒ Enhanced Immunity to Stress
Good RF Noise Immunity
-40°C to +85°C Operating Temperature
ESD (HBM) > 6KV
SC59 (SOT23), TSOT23, and SOT553 Low Profile Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Cover Switch in Clam-Shell or Slide Type Cellular Phones
Display Switch for Portable PCs
On/Off Switch for PDAs and Digital Cameras
Contact-Less Switch in Consumer Products
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
AH180N
Document number: DS32174 Rev. 4 - 2
1 of 8
www.diodes.com
August 2012
© Diodes Incorporated
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Diodes Semiconductor Electronic Components Datasheet

AH180N Datasheet

MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH

No Preview Available !

AH180N pdf
Typical Applications Circuit
2.5V to 5.5V
VDD
AH180N
C
AH180N
RL
OUTPUT
GND
Note: C is for power stabilization and to strengthen the noise immunity , the recommended capacitance is 10nF ~ 100nF.
RL is the pull-up resistor, the recommended resistance is 10kOhm ~ 100kOhm.
Pin Descriptions
Pin Name
VDD
GND
Output
P/I/O
P/I
P/I
O
Function
Power Supply Input
Ground
Output Pin
Functional Block Diagram
AH180N
Document number: DS32174 Rev. 4 - 2
2 of 8
www.diodes.com
August 2012
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AH180N Datasheet

MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH

No Preview Available !

AH180N pdf
AH180N
Absolute Maximum Ratings (Note 4) (@TA = +25°C, unless otherwise specified.)
Symbol
Parameter
Ratings
Unit
VDD Supply Voltage (Note 5)
B Magnetic Flux Density
PD Package Power Dissipation
Ts Storage Temperature Range
TJ Maximum Junction Temperature
SC59
TSOT23
SOT553
7
Unlimited
230
230
230
-65 to +150
150
V
mW
°C
°C
Notes:
4. Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings
only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device
reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time
5. The absolute maximum VDD of 7V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to
operate the device at the absolute maximum rated conditions for any period of time.
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
VDD
TA
Parameter
Supply Voltage
Operating Temperature Range
Conditions
Operating
Operating
Rating
2.5 to 5.5
-40 to +85
Unit
V
°C
Electrical Characteristics (@TA = +25°C, VDD = 3V, unless otherwise specified.)
Symbol
VOUT
Ioff
Idd(en)
Idd(en)
Idd(dis)
Idd(dis)
Idd(avg)
Idd(avg)
Tawake
Tperiod
D.C.
Parameter
Output On Voltage
Output Leakage Current
Supply Current
Awake Time
Period
Duty Cycle
Conditions
IOUT = 1mA
VOUT = 5.5V, Output Off
Chip Enable, TA = +25°C, VDD = 3V
Chip Enable, TA = -40 to +85°C,
VDD = 2.5V to 5.5V
Chip Disable, TA = +25°C, VDD = 3V
Chip Disable, TA = -40 to 85°C,
VDD = 2.5V to 5.5V
Average Supply Current,
TA = +25°C, VDD = 3V
Average Supply Current,
TA = -40 to +85°C, VDD = 2.5V to 5.5V
(Note 6)
(Note 6)
Min Typ Max
0.1 0.3
<0.1 1
36
3 12
5 10
5 28
8 16
8 40
75 125
75 125
0.1
Notes:
6. When power is initially turned on, VDD must be within its correct operating range (2.5V to 5.5V) to guaranteed the output sampling.
The output state is valid after the second operating cycle (typical 150ms).
Unit
V
µA
mA
mA
µA
µA
µA
µA
µs
ms
%
Idd(en)
Tperiod
Tawake
Idd (dis)
0
AH180N
Document number: DS32174 Rev. 4 - 2
3 of 8
www.diodes.com
Sample and output
latched
August 2012
© Diodes Incorporated




Part Number AH180N
Description MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH
Maker Diodes
Total Page 8 Pages
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