ChipFind - документация

Электронный компонент: AH174M-WLA-A

Скачать:  PDF   ZIP
AH174
Inverted Output Hall Effect Latch For High Temperature

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
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:
C
125
~
C
40
+
-
- Package: SIP3, SOT23

Applications

- Rotor position sensing
- Current switch
- Encoder
- RPM detection


Pin Assignment
(SIP3 package)
( SOT23 package)
1. VCC
2. GND
3. OUT
1. VCC
3.
GND 2.
OUT
(Top view)
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.

Pin Descriptions
Name
Description
VCC
Input power
GND
Ground
OUT
Inverted output stage
Ordering Information
AH174 X - X X X - X
Packing
Blank : Tube
A : Taping
P: SIP3
W: SOT23
Package
Lead
L : Lead Free
Blank: Normal
Wafer Body
Magnetic
Characteristics
Blank or
A~Z : if necessary
to specify
A or B
AH174
Inverted Output Hall Effect Latch For High Temperature
Anachip Corp.
www.anachip.com.tw
Rev 0.7 May 7, 2004
2/6
Block Diagram
AMP
REG.
1
3
2
VCC
OUT
GND
Application Circuit

M
Driver
&
Control Logic
I
a
I
b
I
c
I
A
I
C
I
B
H
B
H
A
H
C
M: Three Phase Hall Motor
Digital Hall Effect Sensor
Hall Motor Driver
RPM sensing
Three Phase Hall Motor


AH174
Inverted Output Hall Effect Latch For High Temperature
Anachip Corp.
www.anachip.com.tw
Rev 0.7 May 7, 2004
3/6
Absolute Maximum Ratings
( at Ta= 25
C )
Characteristics
Symbol
Rating
Unit
Supply voltage
VCC
20
V
Output "off " voltage
V
out (off)
20 V
Output "on" current
I
o (sink)
25 mA
Operating Temperature range
T
opt
-40~+125
C
Storage Temperature range
T
stg
-65~+150
C
SIP 550
mW
Power Dissipation
SOT23
PD
230 mW
Electrical Characteristics
( Ta= 25
C )
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Supply voltage
Vcc
--
3.5
-
20
V
Output saturation voltage
Vout(sat)
VCC=12V, OUT "ON"
Io =10mA
- 300 400
mV
Supply current
Icc
VCC=12V, OUT "OFF"
- 3.5 6 mA
Magnetic Characteristics
(Ta= 25
C )
(1mT = 10 Gauss)
A grade
Parameter
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Bop
15
-
60
Gauss
Release Point
Brp
-60
-
-15
Gauss
Hysteresis Bhy
-
80
-
Gauss
B grade
Parameter
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Bop
5
-
80
Gauss
Release Point
Brp
-80
-
-5
Gauss
Hysteresis Bhy
-
80
-
Gauss
AH174
Inverted Output Hall Effect Latch For High Temperature
Anachip Corp.
www.anachip.com.tw
Rev 0.7 May 7, 2004
4/6
Operating Characteristics

Marking side
S
B
hy
V
sat
V
cc
( Output Voltage )
B
rp
B
op
0
( Magnetic flux density )
Marking side
S
( SIP3 )
( SOT23 )
OUT
N
N
Marking Information


(1) SOT23
(2) SIP3
J4 : AH174
XX YM X
Date code
Y : Year
M : Month (A~L)
(Top View)
ID code
A~Z: Non-Lead Free
a~z : Lead Free
174
YWW X
Date code
Y : Year
WW : Nth week
(Top View)
ID code
A~Z: Non-Lead Free
a~z : Lead Free









AH174
Inverted Output Hall Effect Latch For High Temperature
Anachip Corp.
www.anachip.com.tw
Rev 0.7 May 7, 2004
5/6
Package Information

(1) Package Type: SIP-3L
Active Area Depth
Sensor Location
1
2
3
2.10mm
1.55mm
0.51mm
NOM
BRANDED
SURFACE

Package Dimension

1.57mm
1.47mm
4.17mm
4.04mm
1.82
mm
15.50mm
13.00mm
1
2
3
1.27mm
0.41mm
0.41mm
45
45
0.38mm
0.7mm
3.10mm
2.97mm