AH174
Inverted Output Hall Effect Latch For High Temperature
Features
- 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
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.
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
Input power
Ground
Inverted output stage
3.
OUT
GND 2.
1. VCC
( SOT23 package)
Ordering Information
AH174 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
A : Taping
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 ]
