AH174
Inverted Output Hall Effect Latch For High Temperature
Features
General Description
AH174 is a single-digital-output Hall-effect sensor
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 open-collector output pre-driver.
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 threshold Bop, the OUT pin turns off (High).
If B removed toward Brp, the OUT pin is latched
“off” state prior to B < Brp. When B < Brp, the OUT
pin go into “ on ” state.
- Bipolar Hall effect latch sensor
- 3.5V to 20V DC operation voltage
- Open collector pre-driver
- 25mA output sink current
- Chip power reverse-connection protection
- Operating temperature: −40°C ~ +125°C
- Package: SIP3, SOT23
Applications
- Rotor position sensing
- Current switch
- Encoder
- RPM detection
Pin Descriptions
Pin Assignment
Name
Description
Input power
(Top view)
VCC
GND
OUT
3.
OUT
Ground
2. GND
1. VCC
Inverted output stage
(SIP3 package)
3.
OUT
1. VCC
( SOT23 package)
GND 2.
Ordering Information
AH174 X - X X X - X
Magnetic
Packing
Wafer Body
Package
Lead
Characteristics
Blank or
P: SIP3
W: SOT23
L : Lead Free
Blank: Normal
Blank : Tube
A or B
A~Z : if necessary
to specify
A
: Taping
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 ]
