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PDF ( 数据手册 , 数据表 ) AH373

零件编号 AH373
描述 INTERNAL PULL-UP HALL EFFECT LATCH
制造商 Diodes Incorporated
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AH373 数据手册, 描述, 功能
AH373
INTERNAL PULL-UP HALL EFFECT LATCH
Description
AH373 is a single-digital-output Hall-Effect latch sensor with internal
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. An internal band-gap regulator provides a temperature
compensated supply voltage for internal circuits and allows a wide
operating supply range.
When the magnetic flux density (B) perpendicular to the package is
larger than operate point (Bop), output is switched on (OUT pin is
pulled low). The output state is held on until a magnetic flux density
reversal falls below Brp. When B is less than Brp, the output is
switched off.
The AH373 is available in SIP-3L, SC59 and SOT23 packages.
Pin Assignments
(TOP View)
SC59 and SOT23
(TOP View)
SIP-3L
3. OUT
2. GND
1. VDD
Features
Bipolar Hall Effect Latch Operation
2.2V to 20V Operating Range
Single Output with Built-in Pull-up Resistor
25mA output Sink Capability
-40C to +125°C Operating Temperature
Industry Standard SIP-3L, SC59 and SOT23 Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Rotor Position Sensing for Motor Commutation
Encoder
Speed Measurement – RPM Monitor
Contact-less Current Switch
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Typical Application Circuits
IA
IB
Driver
&
IC
Ia
Ib
Ic
Control Logic
HA
HB
HC
Hall Motor Driver
M
RPM sensing
Digital Hall Effect Sensor
M: Three Phase Hall Motor
3 Phase Hall Motor
AH373
Document number: Draft DS31173 Rev. 11 - 2
1 of 12
www.diodes.com
September 2013
© Diodes Incorporated







AH373 pdf, 数据表
AH373
Package Outline Dimensions (cont.) (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
(2) Package Type: SOT23
A
BC
K
JF
H
D
G
K1
L
M
SOT23
Dim Min Max Typ
A 0.37 0.51 0.40
B 1.20 1.40 1.30
C 2.30 2.50 2.40
D 0.89 1.03 0.915
F 0.45 0.60 0.535
G 1.78 2.05 1.83
H 2.80 3.00 2.90
J 0.013 0.10 0.05
K 0.903 1.10 1.00
K1 -
- 0.400
L 0.45 0.61 0.55
M 0.085 0.18 0.11
 0° 8°
-
All Dimensions in mm
Min/Max (in mm)
Pin1
PART
MARKING
SURFACE
Hall Sensor
Die
1.4/1.5
Sensor location
AH373
Document number: Draft DS31173 Rev. 11 - 2
8 of 12
www.diodes.com
September 2013
© Diodes Incorporated














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