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Diodes Semiconductor Electronic Components Datasheet


AH173

INTERNAL PULL-UP HALL EFFECT LATCH


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AH173 pdf
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH
TEMPERATURE
Features
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
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
Lead Free Package: SIP-3L, SC59-3L
Green Package: SC59-3L
General Description
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.
Applications
Rotor Position Sensing
Current Switch
Encoder
RPM Detection
Ordering Information
AH 173 - X X X - X
Package
P: SIP-3L
W: SC59-3L
Lead-Free
Packing
Magnetic
Characteristics
L : Lead Free
-7 : Taping
G : Green (Note3) -B : Bulk (Note 4)
- A : Ammo Box (Note 5)
A or B
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device Package Packaging
Code (Note 2)
AH173-P
Lead-free
AH173-W
P
W
SIP3-3L
SC59-3L
Tube/Bulk
Quantity
Part
Number
Suffix
1000
-B
NA NA
7” Tape and Reel
Quantity
Part
Number
Suffix
NA NA
3000/Tape & Reel
-7
Ammo Box
Quantity
Part
Number
Suffix
4000/Box
-A
NA NA
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
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated



No Preview Available !

AH173 pdf
AH173
INTERNAL PULL-UP HALL EFFECT LATCH FOR HIGH
TEMPERATURE
Pin Assignment
(Top View)
(SIP-3L package)
3. OUT
2. GND
1. VCC
GND 2.
3. OUT
1. VCC
(SC59-3L Package)
Pin Description
Name
VCC
GND
OUT
Description
Positive Power Supply
Ground
Output Stage
Block Diagram
VCC
1
REG.
AH173 Rev. 4
AMP
Rpu
3 OUT
2 GND
2 of 9
www.diodes.com
FEBRUARY 2007
© Diodes Incorporated



Part Number AH173
Description INTERNAL PULL-UP HALL EFFECT LATCH
Maker Diodes Incorporated - Diodes Incorporated
Total Page 9 Pages
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