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PDF A3209EUA-TL Data sheet ( Hoja de datos )

Número de pieza A3209EUA-TL
Descripción MICROPOWER/ ULTRA-SENSITIVE HALL-EFFECT SWITCHES
Fabricantes Allegro MicroSystems 
Logotipo Allegro MicroSystems Logotipo



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3209 AND
3210
Package Suffix ‘LH’ Pinning
3
V
DD
1
2
Dwg. PH-016-1
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Supply Voltage, VDD ............................. 5 V
Magnetic Flux Density, B .......... Unlimited
Output Off Voltage, VOUT ..................... 5 V
Output Current, IOUT .......................... 1 mA
Junction Temperature, TJ ............... +170°C
Operating Temperature Range,
TA ............................... -40°C to +85°C
Storage Temperature Range,
TS .............................. -65°C to +170°C
Caution: These CMOS devices have input
static protection (Class 3) but are still
susceptible to damage if exposed to
extremely high static electrical charges.
MICROPOWER, ULTRA-SENSITIVE
HALL-EFFECT SWITCHES
The A3209Ex and A3210Ex integrated circuits are ultra-sensitive, pole
independent Hall-effect switches with a latched digital output. They are
especially suited for operation in battery-operated, hand-held equipment such as
cellular and cordless telephones, pagers, and palmtop computers. 2.5 volt to
3.5 volt operation and a unique clocking scheme to reduce the average operat-
ing power requirements – the A3209Ex to 400 µW, the A3210Ex to 25 µW!
Except for operating duty cycle and average operating current, the A3209Ex
and A3210Ex are identical.
Unlike other Hall-effect switches, either a north or south pole of sufficient
strength will turn the output on; in the absence of a magnetic field, the output is
off. The polarity independence and minimal power requirement allows these
devices to easily replace reed switches for superior reliability and ease of
manufacturing, while eliminating the requirement for signal conditioning.
Improved stability is made possible through chopper stabilization (dynamic
offset cancellation), which reduces the residual offset voltage normally caused
by device overmolding, temperature dependencies, and thermal stress.
These devices include on a single silicon chip a Hall-voltage generator,
small-signal amplifier, chopper stabilization, a latch, and a MOSFET output.
Advanced BiCMOS processing is used to take advantage of low-voltage and
low-power requirements, component matching, very low input-offset errors,
and small component geometries.
The A3209Ex and A3210Ex are rated for operation over a temperature
range of -40°C to +85°C. Two package styles provide a magnetically opti-
mized package for most applications. Suffix ‘LH’ is a miniature low-profile
surface-mount package while suffix ‘UA’ is a three-lead ultra-mini-SIP for
through-hole or surface mounting.
FEATURES
I Micropower Operation
I Operate With North or South Pole
I 2.5 V to 3.5 V Battery Operation
I Chopper Stabilized
Superior Temperature Stability
Extremely Low Switch-Point Drift
Insensitive to Physical Stress
I ESD Protected to 5 kV
I Solid-State Reliability
I Small Size
I Easily Manufacturable With Magnet Pole Independence
Always order by complete part number: the prefix ‘A’ + the basic four-digit
part number + the suffix ‘E’ to indicate operating temperature range + a
suffix to indicate package style, e.g., A3210ELH .

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A3209EUA-TL pdf
3209 AND 3210
MICROPOWER,
ULTRA-SENSITIVE
HALL-EFFECT SWITCHES
TYPICAL OPERATING CHARACTERISTICS
as a function of supply voltage
SWITCH POINTS
60
40
BOPS
BRPS
20
0 TA = 25°C
-20 BRPN
BOPN
-40
-60
2.4
2.6 2.8 3.0 3.2
SUPPLY VOLTAGE IN VOLTS
3.4 3.6
Dwg. GH-057-1
A3209-- SUPPLY CURRENT
220
200
180
160
140 TA = 25°C
120
2.4
2.6 2.8 3.0 3.2
SUPPLY VOLTAGE IN VOLTS
3.4 3.6
Dwg. GH-058-6
A3210-- SUPPLY CURRENT
16
14
12
10
8.0 TA = 25°C
6.0
2.4
2.6 2.8 3.0 3.2
SUPPLY VOLTAGE IN VOLTS
3.4 3.6
Dwg. GH-058-5A
www.allegromicro.com
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A3209EUA-TL arduino
3209 AND 3210
MICROPOWER,
ULTRA-SENSITIVE
HALL-EFFECT SWITCHES
Surface-Mount Lead Form (order A32xxEUA-TL)
Dimensions in Inches
(controlling dimensions)
Dimensions in Millimeters
(for reference only)
0.095
±0.005
2.41
±0.13
0.002
MAX
0.051
MAX
0.004 0°8°
MAX
0.020
MIN
FLAT
Dwg. MH-015 in
0.10 0°8°
MAX
0.51
MIN
FLAT
Dwg. MH-015 mm
Radial Lead Form (order A32xxEUA-LC)
0.620"
0.500"
(15.7 mm
12.7 mm)
123
0.108"
(2.74 mm)
0.100"
(2.5 mm)
Dwg. MH-026
NOTE: Lead-form dimensions are the nominals produced on the
forming equipment. No dimensional tolerance is implied or
guaranteed for bulk packaging (500 pieces per bag).
The products described herein are manufactured under one or
more of the following U.S. patents: 5,045,920; 5,264,783; 5,442,283;
5,389,889; 5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719;
5,686,894; 5,694,038; 5,729,130; 5,917,320; and other patents
pending.
Allegro MicroSystems, Inc. reserves the right to make, from time to
time, such departures from the detail specifications as may be
required to permit improvements in the performance, reliability, or
manufacturability of its products. Before placing an order, the user is
cautioned to verify that the information being relied upon is current.
Allegro products are not authorized for use as critical components
in life-support appliances, devices, or systems without express written
approval.
The information included herein is believed to be accurate and
reliable. However, Allegro MicroSystems, Inc. assumes no responsi-
bility for its use; nor for any infringements of patents or other rights of
third parties that may result from its use.
www.allegromicro.com
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