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
- Package: SIP3, SOT23
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 bandgap 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 go into “ off ” state.
Applications
- Rotor position sensing
- Current switch
- Encoder
- RPM detection
Pin Assignment
(Top view)
3.
OUT
2. GND
1. VCC
(SIP3 package)
Pin Descriptions
Name
Description
VCC
GND
OUT
Positive power supply
Ground
Output stage
3.
OUT
GND 2.
1. VCC
( SOT23 package)
Ordering Information
AH173 X - X X X - X
Wafer Body
Blank or
A~Z : if necessary
to specify
Package
P: SIP3
W: SOT23
Lead
L : Lead Free
Blank: Normal
Packing
Blank : Tube or Bulk
A : Tape & Reel
Magnetic
Characteristics
A or B
This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of
this product. No rights under any patent accompany the sale of the product.
Rev. 0.7 May 7, 2004
1/6
ANACHIP [ ANACHIP CORP ]
