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AH1807 Datasheet

MEDIUM SENSITIVITY MICROPOWER OMNIPLOAR HALL-EFFECT SWITCH

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AH1807 pdf
AH1807
MEDIUM SENSITIVITY MICROPOWER
OMNIPLOAR HALL-EFFECT SWITCH
Description
The AH1807 is a medium sensitivity micropower Omnipolar Hall
Effect switch IC. It is designed for battery powered consumer
products, home appliances, and industrial equipment such as smart
meter magnetic tamper detect. Based on two Hall Effect plates and a
chopper stabilized architecture, the AH1807 provides a reliable
solution over the whole operating range. To support battery and low
power applications, the design has been optimized to operate over
the supply range of 2.5V to 5.5V and consumes only 24µW with a
supply of 3V.
The single open drain output can be switched on with either a North
or South pole of sufficient strength. When the magnetic flux density
(B) perpendicular to the package 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.
The AH1807 is available in SC59, SOT553 and SIP-3L.
Pin Assignments
TOP View)
GND 2
SC59
3 OUTPUT
1 VDD
(TOP View)
NC 1
5 OUTPUT
GND 2
NC 3
SOT553
4 VDD
Features
Omnipolar (North or South pole) Operation
Medium Sensitivity
Single Open Drain Output
Micropower Operation
2.5V to 5.5V Operating Range
Chopper Stabilized Design Provides:
Superior Temperature Stability
Minimal Switch Point Drift
Enhanced Immunity to Stress
Good RF Noise immunity
-40°C to +125°C Operating Temperature
High ESD
Small Low Profile SOT553 and Industry Standard SC59 and
SIP-3L Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
(TOP View)
SIP-3L
3. OUTPUT
2. GND
1. VDD
Applications
Smart E-Meters
Tamper Protection Switch
Door, Lids and Tray Position Switch
Proximity and Position Switches
Level Detects
On/Off Switch Digital Contact-Less Switch in Industrial and
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/quality/lead_free.html 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.
AH1807
Document number: DS35524 Rev. 5 - 2
1 of 13
www.diodes.com
May 2015
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AH1807 Datasheet

MEDIUM SENSITIVITY MICROPOWER OMNIPLOAR HALL-EFFECT SWITCH

No Preview Available !

AH1807 pdf
AH1807
Typical Applications Circuit
2.5V to 5.5V
VDD
RL
OUTPUT
CIN AH1807
GND
Note:
4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF to 100nF.
RL is the pull-up resistor, the recommended resistance is 10kΩ to 100kΩ.
Pin Descriptions
Package: SC59 and SIP-3L
Pin
Number
1
2
3
Pin
Name
VDD
GND
OUTPUT
Power Supply Input
Ground
Output Pin
Function
Package: SOT553
Pin
Number
1
2
3
4
5
Pin
Name
NC
GND
NC
VDD
OUTPUT
No Connection (Note 5)
Ground
No Connection (Note 5)
Power Supply Input
Output
Function
Note:
5. NC is “No Connection” pin and is not connected internally. This pin can be left open or tied to ground.
Functional Block Diagram
VDD
Hall
Plate
Hall
Plate
Amp
Amp
Sleep/Awake Logic
and Power Switch
Latch
Latch
Output
Driver
Controller
OUTPUT
GND
AH1807
Document number: DS35524 Rev. 5 - 2
2 of 13
www.diodes.com
May 2015
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AH1807 Datasheet

MEDIUM SENSITIVITY MICROPOWER OMNIPLOAR HALL-EFFECT SWITCH

No Preview Available !

AH1807 pdf
AH1807
Absolute Maximum Ratings (Note 6) (@TA = +25°C, unless otherwise specified.)
Symbol
VDD
VOUT
VDD REV
VOUT_REV
IOUTPUT
B
PD
Ts
TJ
ESD HBM
Characteristics
Supply Voltage (Note 7)
Output Pin Voltage (Note 7)
Reverse Supply Voltage
Reverse Output Pin Voltage
Output Current (source and sink)
Magnetic Flux Density
Package Power Dissipation
Storage Temperature Range
Maximum Junction Temperature
Human Body Model ESD Capability
SC59 and SOT553
SIP-3L
Values
7
7
-0.3
-0.3
2.5
Unlimited
230
230
-65 to +150
150
6
Unit
V
V
V
V
mA
mW
C
C
kV
Notes:
6. 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.
7. 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
VOUT_MAX
TA
Characteristic
Supply Voltage
Maximum output pin voltage
Operating Temperature Range
Operating
Operating
Operating
Conditions
Rating
2.5 to 5.5
5.5
-40 to +125
Unit
V
V
C
Electrical Characteristics (@TA = +25°C, VDD = 3V, unless otherwise specified.)
Symbol
VOUT_ON
IOFF
Characteristic
Output On Voltage (VOL)
Output Leakage Current
IDD(awake)
IDD(sleep)
Supply Current
IDD(sleep)
IDD(avg)
Tawake
Tperiod
D.C.
Average Supply Current
Awake Time
Period
Duty Cycle
Conditions
IOUT = 1mA
VOUT = 5.5V, Output off
During ‘awake’ period,
TA = +25°C, VDD = 3V
During ‘awake’ period,
TA = -40 to +125°C, VDD = 2.5V to 5.5V
During ‘sleep’ period,
TA = +25°C, VDD = 3V
During ‘sleep’ period,
TA = -40 to +125°C, VDD = 2.5V to 5.5V
TA = 25°C, VDD = 3V
TA = -40 to +125°C, VDD = 2.5V to 5.5V
(Note 8)
(Note 8)
Min Typ Max Unit
0.1 0.3
V
< 0.1
1
µA
3
6 mA
— — 12 mA
5 10 µA
— — 28 µA
8 16 µA
- 40 µA
75 125 µs
75 125 ms
0.1
%
Note:
8. When power is initially turned on, the operating 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).
IDD(awake)
Tperiod
Tawake
Tsleep
IDD(avg)
IDD(sleep)
0
Sample and output
latched
AH1807
Document number: DS35524 Rev. 5 - 2
3 of 13
www.diodes.com
May 2015
© Diodes Incorporated




Part Number AH1807
Description MEDIUM SENSITIVITY MICROPOWER OMNIPLOAR HALL-EFFECT SWITCH
Maker Diodes
Total Page 13 Pages
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