Anachip AH173WA-B Internal pull-up hall effect latch for high temperature Datasheet

AH173
Internal Pull-up Hall Effect Latch For High Temperature
„ Features
„ General Description
- 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
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 Descriptions
„ Pin Assignment
(Top view)
Name
Description
3. OUT
VCC
Positive power supply
2. GND
GND
Ground
1. VCC
OUT
Output stage
(SIP3 package)
3. OUT
GND 2.
1. VCC
( SOT23 package)
„ Ordering Information
AH173 X - X X X - X
Wafer Body
Package
Lead
Packing
Blank or
A~Z : if necessary
to specify
P: SIP3
W: SOT23
L : Lead Free
Blank: Normal
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
AH173
Internal Pull-up Hall Effect Latch For High Temperature
„ Block Diagram
VCC
1
Rpu
REG.
3
OUT
2
GND
AMP
„ Functional Application Circuit
IA
IB
M
Digital Hall Effect Sensor
IC
Driver
M: Three Phase Hall Motor
Ia
Ib
Ic
&
Control Logic
HA
RPM sensing
HB
HC
Hall Motor Driver
3 Phase Hall Motor
Anachip Corp.
www.anachip.com.tw
Rev 0.7 May 7, 2004
2/6
AH173
Internal Pull-up Hall Effect Latch For High Temperature
„ Absolute Maximum Ratings ( at Ta= 25°C )
Characteristics
Symbol
Values
Unit
VCC
20
V
Vout (off)
Io (sink)
Top
Tstg
20
V
Supply voltage
Output “off ” voltage
Output “on” current
Operating temperature range
Storage temperature range
SIP
Power dissipation
SOT23
„ Electrical Characteristics
Characteristics
Supply voltage
PD
25
mA
-40~+125
°C
-65~+150
°C
550
mW
230
mW
( Ta= 25°C )
Symbol
Conditions
Min.
Typ.
Max.
Unit
Vcc
3
-
20
V
-
300
400
mV
Supply current
Icc
—
VCC=12V, OUT ”ON”
Io =10mA
VCC=12V, OUT ”OFF”
-
3.5
6
mA
Internal pull-up resistor
Rpu
—
7
10
13
KΩ
Vd
Vd = Vcc-Vce
-
-
0.3
V
Output saturation voltage
Dropout voltage
Vout(sat)
„ Magnetic Characteristics (At Ta= 25°C )
(1mT = 10 Gauss)
A grade
Characteristics
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Bop
15
-
60
Gauss
Release Point
Brp
-60
-
-15
Gauss
Hysteresis
Bhy
-
80
-
Gauss
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Bop
5
-
80
Gauss
Release Point
Brp
-80
-
-5
Gauss
Hysteresis
Bhy
-
80
-
Gauss
B grade
Characteristics
Anachip Corp.
www.anachip.com.tw
Rev 0.7 May 7, 2004
3/6
AH173
Internal Pull-up Hall Effect Latch For High Temperature
„ Operating Characteristics
S
S
Marking side
Marking side
N
N
( SOT23 )
( SIP3 )
( Output Voltage )
Vout
Vcc
Vd
High
Bhy
Low
Vsat
Brp
0
Bop
( Magnetic flux density )
„ Marking Information
(1) SOT23
(Top View)
XX YM X
(2) SIP3
(Top View)
ID code
A~Z: Non-Lead Free
a~z : Lead Free
173
YWW X
J3 : AH173
Date code
Y : Year
M : Month (A~L)
ID code
A~Z: Non-Lead Free
a~z : Lead Free
Date code
Y : Year
WW : Nth week
Anachip Corp.
www.anachip.com.tw
Rev 0.7 May 7, 2004
4/6
AH173
Internal Pull-up Hall Effect Latch For High Temperature
„ Package Information
(1) Package Type: SIP-3L
0.51mm
NOM
2.10mm
1.55mm
BRANDED
SURFACE
1
2
3
Sensor Location
Active Area Depth
Package Dimension
45º
0.38mm
0.7mm
1.57mm
1.47mm
0.41mm
0.41mm
3
1.27mm
4.17mm
4.04mm
2
1
45º
3.10mm
2.97mm
Anachip Corp.
www.anachip.com.tw
1.82
mm
15.50mm
13.00mm
Rev 0.7 May 7, 2004
5/6
AH173
Internal Pull-up Hall Effect Latch For High Temperature
(2) Package Type: SOT23-3L
D
2
E
HE
( Sensing point )
0.8mm
1
3
SEE VIEW C
1.45mm
e1
e
θ 1(4x)
3X
GAUGE PLANE
A
A2
0.10 C
L
θ 2(4x)
VIEW C
b(3x)
Symbol
A
A1
A2
b
C
D
E
HE
L
L1
e
e1
θ
θ1
θ2
Dimensions In Millimeters
Min.
1.05
0.05
1.00
0.25
0.08
2.70
1.50
2.60
0.30
0.50
1.80
0.85
0o
o
3
6o
Nom.
1.10
2.90
1.60
2.80
0.60
1.90
0.95
5o
o
5
8o
Max.
1.35
0.15
1.20
0.50
0.20
3.00
1.70
3.00
0.55
0.70
2.00
1.05
10o
o
7
10o
Anachip Corp.
www.anachip.com.tw
θ
L1
A1
SEATING PLANE
Dimensions In Inches
Min.
0.041
0.002
0.039
0.010
0.003
0.106
0.059
0.102
0.012
0.020
0.071
0.033
0o
o
3
6o
Nom.
0.043
0.114
0.063
0.110
0.024
0.075
0.037
5o
o
5
8o
Max.
0.053
0.006
0.047
0.020
0.008
0.118
0.067
0.118
0.022
0.028
0.079
0.041
10o
o
7
10o
Rev 0.7 May 7, 2004
6/6
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