AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH
TEMPERATURE
General Description
Features
AH173 is a single-digital-output Hall-effect sensor with pull-up
resistor for high temperature operation. The device includes an
on-chip Hall voltage generator for magnetic sensing, an amplifier
to amplify Hall voltage, and a comparator to provide switching
hysteresis for noise rejection, and an output driver with a pull-up
resistor (Rpu). An internal band-gap regulator is used to provide
temperature compensated supply voltage for internal circuits and
allows a wide operating supply range. While the magnetic flux
density (B) is larger than operate point (Bop), the OUT pin turns
on (low). If B moves toward release point (Brp), the OUT pin is
latched “on” state prior to B < Brp. When B < Brp, the OUT pin
goes into “off ” state.
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Bipolar Hall Effect Latch Sensor
3V to 20V DC Operation Voltage
Built-in Pull-Up Resistor
25mA Output Sink Current
Operating Temperature:
−40°C ~ +125°C
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Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
Lead Free Package: SIP-3L, SC59-3L
Green Package: SC59-3L
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Applications
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Rotor Position Sensing
Current Switch
Encoder
RPM Detection
Ordering Information
AH173 - X X X - X
Magnetic
Packing
Package
Lead-Free
Characteristics
-
-
-
:
A or B
P: SIP-3L
W: SC59-3L
L : Lead Free
G : Green (Note3)
7 Taping
:
Bulk (Note 4)
B
:
Ammo Box (Note 5)
A
Note:
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Tube/Bulk
7” Tape and Reel
Ammo Box
Device Package Packaging
Quantity
Part
Quantity
Part
Quantity
Part
Code
(Note 2)
Number
Suffix
-B
Number
Suffix
NA
Number
Suffix
AH173-P
AH173-W
P
SIP3-3L
SC59-3L
1000
NA
NA
4000/Box
NA
Lead-free
-A
NA
W
NA
3000/Tape & Reel
-7
Note: 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.
3. Green is only available for SC59-3L
4. Bulk is for SIP-3 Straight Lead.
5. Ammo Box is for SIP-3 Spread Lead.
AH173 Rev. 4
1 of 9
FEBRUARY 2007
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© Diodes Incorporated