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AH1809 반도체 회로 부품 판매점

LOW SENSITIVITY MICROPOWER OMNIPLOAR HALL-EFFECT SWITCH



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AH1809 데이터시트, 핀배열, 회로
AH1809
LOW SENSITIVITY MICROPOWER
OMNIPLOAR HALL-EFFECT SWITCH
Description
The AH1809 is a low sensitivity micropower Omnipolar Hall Effect
switch IC. It is designed for battery powered consumer products,
home appliances, and industrial equipment such smart e-meters.
Based on two Hall Effect plates and a chopper stabilized architecture
the AH1809 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
perpendicular to the package (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.
The AH1809 is available in SC59, SOT553 and SIP-3L.
Features
Omnipolar (North or South pole) Operation
Low 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)
Pin Assignments
TOP View)
GND 2
SC59
3 OUTPUT
1 VDD
(TOP View)
SOT553
(TOP View)
SIP-3L
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.
AH1809
Document number: DS35523 Rev. 4 - 2
1 of 13
www.diodes.com
February 2015
© Diodes Incorporated


AH1809 데이터시트, 핀배열, 회로
Typical Applications Circuit
AH1809
Note:
4. CIN 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 10kto 100k.
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
AH1809
Document number: DS35523 Rev. 4 - 2
2 of 13
www.diodes.com
February 2015
© Diodes Incorporated




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