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AH375 Schematic ( PDF Datasheet ) - Anachip

Teilenummer AH375
Beschreibung Single Phase Hall Effect Latch
Hersteller Anachip
Logo Anachip Logo 



Gesamt 6 Seiten
		
AH375 Datasheet, Funktion
Single Phase Hall Effect Latch
„ Features
- 2.2V to 20V DC operation voltage
- Temperature compensation
- Wide operating voltage range
- Open drain pre-driver
- 25mA maximum sinking output current
- Package: SIP3, SOT23
„ Applications
- Brush-less DC Motor
- Brush-less DC Fan
- Revolution counting
- Speed measurement
„ Pin Assignments
AH375
„ General Description
AH375 is an integrated Hall effect latched sensor
designed for electronic commutation of brush-less
DC motor applications. The device includes an
on-chip Hall voltage generator for magnetic sensing,
a comparator that amplifies the Hall voltage, and a
schmitt trigger to provide switching hysteresis for
noise rejection, and open drain output. An internal
bandgap regulator is used to provide temperature
compensated supply voltage for internal circuits
and allows a wide operating supply 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).
„ Pin Descriptions
375
12 3
(SIP package)
2
375
13
(SOT23 package)
(Top view)
1 : Vdd
2 : GND
3 : OUT
Name
Vdd
GND
OUT
P/I/O
P
P
O
Pin #
1
2
3
Description
Positive Power Supply
Ground
Output Pin
„ Ordering Information
AH375 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 : 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.1.3 Jan. 09, 2006
1/6






AH375 Datasheet, Funktion
Single Phase Hall Effect Latch
„ Package Information (Continued)
(2) Package Type: SOT23-3L
2
( Sensing point )
D
0.8mm
1
1.45mm
3
e1
e
θ 1(4x)
AH375
GAUGE PLANE
L
L1
VIEW C
θ
b(3x)
θ 2(4x)
SEE VIEW C
Symbol
A
A1
A2
b
C
D
E
HE
L
L1
M
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
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
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
Anachip Corp.
www.anachip.com.tw
Rev.1.3 Jan. 09, 2006
6/6

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