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AH1887 Schematic ( PDF Datasheet ) - Diodes Incorporated

Teilenummer AH1887
Beschreibung ULTRA-SENSITIVE HALL EFFECT
Hersteller Diodes Incorporated
Logo Diodes Incorporated Logo 




Gesamt 7 Seiten
AH1887 Datasheet, Funktion
AH1887
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
www.SDaWtaSITheCetH4U.com
Description
Pin Assignments
AH1887 is with two Hall effect plates and dual CMOS output
driver, mainly designed for battery–powered, hand-held
equipment (such as Cellular and Cordless Phone, PDA). The
total operation power is down to 15uW in the 1.8V supply.
Either north or south pole of sufficient strength will turn the
output on. The output will be turned off under no magnetic
field.
While the magnetic flux density (B) is larger than operate
point Bop(s), the output1 will be turned on (low), the output is
held until B is lower than release point Brp(s), then turned off
(high).
While the magnetic flux density (B) is larger than operate
point Bop(n), the output2 will be turned on (low), the output is
held until B is lower than release point Brp(n), then turned off
(high).
( Top View )
Out 2 1
5 Out 1
GND 2
NC 3
4 Vdd
SOT553
Features
Applications
• Micropower operation
• Operation with North or South Pole
• 1.65V to 3.3V battery operation
• 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
• ESD 4KV in human body mode
• Package: SOT553
• “Green” Molding Compound
• Cellular phone
• PDA
• Cordless phone
Typical Application Circuit
Vdd
AH1887
Document number: DS31313 Rev. 4 - 2
AH1887
GND
Output 1
Output 2
1 of 7
www.diodes.com
August 2010
© Diodes Incorporated






AH1887 Datasheet, Funktion
Marking Information
(1) SOT553
AH1887
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
www.SDaWtaSITheCetH4U.com
( Top View )
XX Y W X
XX : Identification Code
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week;
z represents 52 and 53 week
X : A~Z : Green
Part Number
AH1887
Package
SOT553
Identification Code
KU
Package Outline Dimensions (All Dimensions in mm)
(1) Package Type: SOT553
1.50/1.70
1.0Typ.
0.30 C D
D
CL
A
0.10/0.18
1.0Typ.
CL
CL
0.32/0.58
Hall Sensor
Pin1
0.5Typ.
6°~8°
0.15/0.30(5x)
B
0.10 M C A-B D
6°~8°
CL
Pin1
0.5Typ.
0.3
Land Pattern Recommendation
(Unit:mm)
Top View
AH1887
Document number: DS31313 Rev. 4 - 2
6 of 7
www.diodes.com
August 2010
© Diodes Incorporated

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