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AH337-WLA [ICT]

Hall Effect Sensor, 3mT Min, 15mT Max, Rectangular, Surface Mount, LEAD FREE, SOT-23, 3 PIN;
AH337-WLA
型号： AH337-WLA
厂家： InnoChips Technology    InnoChips Technology
描述：

Hall Effect Sensor, 3mT Min, 15mT Max, Rectangular, Surface Mount, LEAD FREE, SOT-23, 3 PIN
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AH337  
Single Phase Hall Effect Switch  
„ Features  
„ General Description  
- 4.2V to 28V DC operation voltage  
- Temperature compensation  
- Wide operating voltage range  
- Open drain pre-driver  
AH337 is an switched Hall-Effect IC which is for  
contactless switching applications. The device  
includes an on-chip Hall voltage generator for  
magnetic sensing, an amplifier that amplifies the  
Hall voltage, a schmitt trigger to provide switching  
hysteresis for noise rejection, and an open-collector  
output. The bandgap regulator allows a wide  
operating voltage range.  
- 25mA maximum sinking output current.  
- Package: SIP3, SOT23  
If a magnetic flux density larger than threshold Bop,  
DO is turned on(low). The output state is held until  
a magnetic flux density reversal falls below Brp  
causing DO to be turned off (high).  
„ Applications  
- VCD/DVD loader, CD/DVD ROM  
- Cover detector  
- Speed measurement  
- Home appliances  
- Home safety  
„ Pin Assignment  
„ Pin Descriptions  
Name P/I/O Pin #  
Description  
337  
2
Vdd  
GND  
OUT  
P
P
O
1
2
3
Positive Power Supply  
Ground  
Output Pin  
(Top view)  
337  
1 : Vdd  
1
3
2 : GND  
3 : OUT  
(SOT23 package)  
1
2
3
(SIP package)  
„ Ordering Information  
AH337 X - X X X  
Packing  
L : Lead Free Blank : Bulk  
Wafer Body  
Package  
P: SIP3  
Lead  
Blank or  
A~Z : if necessary  
to specify  
W: SOT23  
A
: Tape & Reel  
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.1.1 Jan. 09, 2006  
1/6  
AH337  
Single Phase Hall Effect Switch  
„ Typical Application Circuit  
4.2V ~28V  
RL  
Vdd  
OUT  
AH337  
Digital Output  
GND  
„ Functional Block Diagrams  
Vdd  
1
Regulator  
3
OUT  
GND  
Hall  
plate  
Amp  
2
Anachip Corp.  
www.anachip.com.tw  
Rev.1.1 Jan. 09, 2006  
2/6  
AH337  
Single Phase Hall Effect Switch  
„ Absolute Maximum Ratings ( at Ta=25oC )  
Characteristics  
Symbol  
Values  
Unit  
Supply Voltage  
Vdd  
30  
V
Magnetic Flux Density  
B
Unlimited  
Output OFF Voltage  
VDS  
Id  
30  
25  
V
Output “ON” Current  
Continuous  
mA  
°C  
Operating Temperature Range  
Storage Temperature Range  
Maximum Junction Temp.  
Ta  
Ts  
Tj  
-40~+125  
-65~+150  
150  
°C  
°C  
SIP-3L  
550  
mW  
mW  
Package Power Dissipation  
Pd  
SOT23-3L  
230  
„ Electrical Characteristics (Ta=+ 25°C, Vdd=12V)  
Characteristic  
Supply Voltage  
Symbol  
Vdd  
Test Conditions  
Min  
4.2*  
-
-
-
-
-
Typ  
Max  
Units  
V
-
28  
400  
10  
4
1
1
Output Saturation Voltage VDS(sat) Iout=10mA, B > Bop  
300  
<0.1  
2
mV  
uA  
mA  
us  
Output Leakage Current  
Supply Current  
Ioff  
Idd  
tr  
B < Brp  
Output Open  
RL=820Ω, CL=20pF  
RL=820Ω, CL=20pF  
Output Rise Time  
Output Falling Time  
0.1  
0.1  
tf  
us  
*Note: The output of IC will be switched after the supply voltage is over 4.2V, but the magnetic characteristics won't be normal until the  
supply is over 4.5V.  
„ Test Circuit  
12V  
OUT  
RL  
CL  
RL=820 Ohm  
CL=20 pF  
Test Circuit  
„ Magnetic Characteristics (Ta=25°C, Vdd=4.5V to 28V)  
(1mT=10Gauss)  
Parameter  
Symbol  
Min.  
Typ.  
Max.  
Unit  
Operate Point  
Bop  
90  
30  
-
120  
150  
90  
-
Gauss  
Gauss  
Gauss  
Release Point  
Hysteresis  
Brp  
60  
Bhys  
60  
Anachip Corp.  
www.anachip.com.tw  
Rev.1.1 Jan. 09, 2006  
3/6  
AH337  
Single Phase Hall Effect Switch  
Output  
S
S
Vdd  
( off-state )  
Marking side  
B hy  
Turn off  
Turn on  
Marking side  
( on-state )  
N
N
Vsat  
Vsat  
( SOT23 )  
( SIP3 )  
0
Brp Bop  
( Magnetic flux density B )  
„ Performance Characteristics (SIP3)  
25  
50  
60  
70  
80  
85  
286  
130  
88  
90  
264  
135  
66  
95  
242  
140  
44  
100  
220  
150  
0
Ta (°C)  
Pd (mW)  
Ta (°C)  
550  
105  
198  
440  
110  
176  
396  
115  
154  
352  
120  
132  
308  
125  
110  
Pd (mW)  
P ower D issipation C urve  
Pd (m W )  
600  
500  
400  
300  
200  
100  
0
0
25  
50  
75  
100  
125  
150  
Ta (。C )  
„ Performance Characteristics (SOT23-3)  
25  
50  
60  
70  
80  
90  
100 110 120 125 130 140 150  
Ta (°C)  
Pd (mW) 230 184 166 147 129 110  
92  
74  
55  
46  
37  
18  
0
Pd (m W )  
Pow er D issipation C urve  
300  
200  
100  
0
0
25  
50  
75  
100  
125  
150  
Ta (。C )  
Anachip Corp.  
www.anachip.com.tw  
Rev.1.1 Jan. 09, 2006  
4/6  
AH337  
Single Phase Hall Effect Switch  
„ Marking Information  
(1) SIP3  
(2) SOT23  
(Top View)  
(Top View)  
ID code  
A~Z: Non-Lead Free  
a~z: Lead Free  
P1:AH337  
ID Code:  
337  
XX YM X  
A~Z: Non-Lead Free  
a~z : Lead Free  
YWW X  
Date code  
Date code  
Y : Year  
Y : Year  
M :Month(A~L)  
WW : Nth week  
„ Package Information (unit: mm)  
(1) Package Type: SIP-3L  
0.51mm  
NOM  
2.00mm  
1.15mm  
BRANDED  
SURFACE  
1
2
3
Sensor Location  
Active Area Depth  
Package Dimension  
45  
º
0.38mm  
0.7mm  
1.57mm  
1.47mm  
0.41mm  
0.41mm  
3
2
1
1.27mm  
4.17mm  
4.04mm  
1.82  
mm  
15.50mm  
13.00mm  
3.10mm  
2.97mm  
45  
º
Anachip Corp.  
www.anachip.com.tw  
Rev.1.1 Jan. 09, 2006  
5/6  
AH337  
Single Phase Hall Effect Switch  
„ Package Information (Continued)  
(2) Package Type: SOT23-3L  
D
2
( Sensing point )  
GAUGE PLANE  
0.8mm  
θ
L
L1  
1
3
1.45mm  
e1  
VIEW C  
e
1(4x)  
θ
SEE VIEW C  
2(4x)  
θ
b(3x)  
Dimensions In Millimeters  
Dimensions In Inches  
Symbol  
Min.  
1.05  
0.05  
1.00  
0.25  
0.08  
2.70  
1.50  
2.60  
0.30  
0.50  
0.73  
1.80  
0.85  
0o  
Nom.  
-
Max.  
1.35  
0.15  
1.20  
0.50  
0.20  
3.00  
1.70  
3.00  
0.60  
0.70  
0.83  
2.00  
1.05  
10o  
Min.  
Nom.  
Max.  
A
A1  
A2  
b
0.041  
0.002  
0.039  
0.010  
0.003  
0.106  
0.059  
0.102  
0.012  
0.020  
0.029  
0.071  
0.033  
0o  
-
-
0.053  
0.006  
0.047  
0.020  
0.008  
0.118  
0.067  
0.118  
0.024  
0.028  
0.033  
0.079  
0.041  
10o  
-
1.10  
-
-
2.90  
1.60  
2.80  
-
0.043  
-
C
-
D
0.114  
0.063  
0.110  
-
E
HE  
L
L1  
M
e
0.60  
0.78  
1.90  
0.95  
5o  
0.024  
0.031  
0.075  
0.037  
5o  
e1  
θ
θ1  
θ2  
3o  
5o  
7o  
3o  
5o  
7o  
6o  
8o  
10o  
6o  
8o  
10o  
Anachip Corp.  
www.anachip.com.tw  
Rev.1.1 Jan. 09, 2006  
6/6  

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