Anachip AH337W-L Single phase hall effect switch Datasheet

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
- 25mA maximum sinking output current.
- Package: SIP3, SOT23
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-drain
output. The bandgap regulator allows a wide
operating voltage range.
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
337
„ Pin Descriptions
2
(Top view)
337
1 : Vdd
1
3
Name
P/I/O
Pin #
Description
Vdd
GND
OUT
P
P
O
1
2
3
Positive Power Supply
Ground
Output Pin
2 : GND
(SOT23 package)
3 : OUT
1 2 3
(SIP package)
„ Ordering Information
AH337 X - X X X
Wafer Body
Blank or
A~Z : if necessary
to specify
Package
P: SIP3
W: SOT23
Lead
L : Lead Free
Packing
Blank : Bulk
A : Spread-leg ammo pack for SIP-3L;
Tape & Reel for SOT23
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.1.2 Mar. 29, 2006
1/8
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
Hall
plate
23
OUT
2
GND
Amp
Anachip Corp.
www.anachip.com.tw
Rev.1.2 Mar. 29, 2006
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AH337
Single Phase Hall Effect Switch
„ Absolute Maximum Ratings
Characteristics
Supply Voltage
Magnetic Flux Density
Output OFF Voltage
Output “ON” Current
Operating Temperature Range
Storage Temperature Range
Maximum Junction Temp.
Package Power Dissipation
( at Ta=25oC )
Symbol
Vdd
B
VDS
Id
Ta
Ts
Tj
Continuous
SIP-3L
SOT23-3L
Values
30
Unlimited
30
25
-40~+125
-65~+150
150
550
230
Pd
Unit
V
V
mA
°C
°C
°C
mW
mW
„ Recommended Operating Conditions ( Ta=25oC )
Paramter
Supply Voltage
Symbol
Vdd
Conditions
Rating
4.2*~28
Operating
Unit
V
*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.
„ Electrical Characteristics
(Ta=+ 25°C, Vdd=12V)
Characteristic
Symbol
Test Conditions
Output Saturation Voltage VDS(sat) Iout=10mA, B > Bop
Output Leakage Current
Ioff
B < Brp
Supply Current
Idd
Output Open
Output Rise Time
tr
RL=820Ω, CL=20pF
Output Falling Time
tf
RL=820Ω, CL=20pF
Min
-
Typ
300
<0.1
2
0.1
0.1
Max
400
10
4
1
1
Units
mV
uA
mA
us
us
„ Test Circuit
12V
OUT
RL
RL=820 Ohm
CL=20 pF
CL
Test Circuit
Anachip Corp.
www.anachip.com.tw
Rev.1.2 Mar. 29, 2006
3/8
AH337
Single Phase Hall Effect Switch
„ Magnetic Characteristics
Symbol
Bop
Brp
Bhys
S
Min.
90
30
-
S
Marking side
Marking side
N
N
( SOT23 )
( SIP3 )
(1mT=10Gauss)
Max.
Unit
150
Gauss
90
Gauss
Gauss
Typ.
120
60
60
Output
( Output Voltage )
Parameter
Operate Point
Release Point
Hysteresis
(Ta=25°C, Vdd=4.5V to 28V)
Vdd
( off-state )
Turn off
B hy
Turn on
( on-state )
Vsat
Vsat
0
B rp B op
( Magnetic flux density B )
„ Performance Characteristics (SIP3)
25
550
105
198
Ta (°C)
Pd (mW)
Ta (°C)
Pd (mW)
50
440
110
176
60
396
115
154
70
352
120
132
80
308
125
110
85
286
130
88
90
264
135
66
95
242
140
44
100
220
150
0
P o w e r D is s ip a tio n C u rv e
P d (m W )
600
500
400
300
200
100
0
0
25
50
75
100
125
150
T a (。 C )
Anachip Corp.
www.anachip.com.tw
Rev.1.2 Mar. 29, 2006
4/8
AH337
Single Phase Hall Effect Switch
„ Performance Characteristics (SOT23-3)
Ta (°C)
Pd (mW)
25
230
50
184
60
166
70
147
P d (m W )
80
129
90
110
100
92
110
74
120
55
125
46
130
37
140
18
150
0
P o w e r D is s ip a tio n C u rv e
300
200
100
0
0
25
50
75
100
125
150
T a (。 C )
„ Marking Information
(1) SIP3
(2) SOT23
(Top View)
337
YWW X
(Top View)
ID Code:
A~Z: Non-Lead Free
a~z : Lead Free
XX YM X
Date code
Y : Year
WW : Nth week
Anachip Corp.
www.anachip.com.tw
ID code
A~Z: Non-Lead Free
a~z: Lead Free
P1:AH337
Date code
Y : Year
M :Month(A~L)
Rev.1.2 Mar. 29, 2006
5/8
AH337
Single Phase Hall Effect Switch
„ Package Information
(unit: mm)
(1) Package Type: SIP-3L for Bulk Pack
0.51mm
NOM
2.00mm
1.15mm
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.1.2 Mar. 29, 2006
6/8
AH337
Single Phase Hall Effect Switch
„ Package Information (Continued)
(2) Package Type: Spread leg SIP-3L for Ammo-Pack only
△p
△p
H
B
A
L
W1
W
P2
D0
F1
F2
Po
△h
D
△h
A
A n s ic h t A -B
v ie w A -B
T1
Symbol
A
D
b2
D0
F1
F2
H
△h
L
P0
P2
△p
T
T1
W
W1
T
b2
Dimensions In Millimeters
Min.
Nom.
Max.
2.80
3.00
3.20
3.90
4.10
4.30
0.33
0.38
0.42
3.80
4.00
4.20
2.35
2.55
2.75
2.45
2.55
2.85
20
1
11
12.2
12.7
13.2
5.95
6.35
6.75
1
0.55
1.42
17.5
18.0
18.5
5.5
6.0
6.5
Dimensions In Inches
Min.
Nom.
Max.
0.110
0.118
0.125
0.153
0.161
0.169
0.012
0.014
0.016
0.149
0.157
0.165
0.092
0.100
0.108
0.096
0.100
0.112
0.787
0.039
0.433
0.480
0.5
0.519
0.234
0.25
0.265
0.039
0.021
0.055
0.688
0.708
0.728
0.216
0.236
0.255
„ Package Information (Continued)
Anachip Corp.
www.anachip.com.tw
Rev.1.2 Mar. 29, 2006
7/8
AH337
Single Phase Hall Effect Switch
(3) Package Type: SOT23-3L
D
C
2
HE
E
( Sensing point )
GAUGE PLANE
0.8mm
1
θ
L
3
L1
1.45mm
e1
VIEW C
e
b(3x)
Symbol
A
A1
A2
b
C
D
E
HE
L
L1
M
e
e1
θ
θ1
θ2
θ 2(4x)
Dimensions In Millimeters
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
3o
6o
Nom.
1.10
2.90
1.60
2.80
0.60
0.78
1.90
0.95
5o
5o
8o
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
7o
10o
Anachip Corp.
www.anachip.com.tw
A
SEE VIEW C
A1
A2
M
θ 1(4x)
Dimensions In Inches
Min.
0.041
0.002
0.039
0.010
0.003
0.106
0.059
0.102
0.012
0.020
0.029
0.071
0.033
0o
3o
6o
Nom.
0.043
0.114
0.063
0.110
0.024
0.031
0.075
0.037
5o
5o
8o
Max.
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
7o
10o
Rev.1.2 Mar. 29, 2006
8/8
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