A3213 Datasheet PDF - Allegro
| Part Number | A3213 | |
| Description | Micropower Ultra-Sensitive Hall-Effect Switches | |
| Manufacturers | Allegro | |
| Logo |  |
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There is a preview and A3213 download ( pdf file ) link at the bottom of this page. Total 11 Pages | ||
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A3213 and A3214
Micropower Ultra-Sensitive Hall-Effect Switches
FEATURES AND BENEFITS
• AEC-Q100 automotive qualified
• Micropower operation
• Operate with north or south pole
• 2.4 to 5.5 V battery operation
• Chopper stabilized
□□Superior temperature stability
□□Extremely low switchpoint drift
□□Insensitive to physical stress
• High ESD protection
• Solid-state reliability
• Small size
• Easily assembly into applications due to magnetic pole
independence
Packages:
3 pin surface mount
SOT23-W (suffix LH)
3 lead ultramini SIP
(suffix UA)
Not to scale
DESCRIPTION
The A3213 and A3214 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 cell and cordless
telephones and palmtop computers. A 2.4 to 5.5 V operation
and a unique clocking scheme reduce the average operating
power requirements: the A3213 to 825 µW, the A3214 to
14 µW (typical, at 2.75 V). Except for operating duty cycle
and average operating current, the A3213 and A3214 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 reliabil-
ity and ease of manufacturing, while eliminating the require-
ment for signal conditioning.
Improved stability is made possible through chopper sta-
bilization (dynamic offset cancellation), which reduces the
residual offset voltage normally caused by device overmold-
ing, temperature dependencies, and thermal stress.
Continued on the next page…
SUPPLY
SWITCH
X
TIMING
LOGIC
OUTPUT
GROUND
27622.62-DS Rev. 27
Functional Block Diagram
Dwg. FH-020-5
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A3213 and
A3214
Micropower Ultra-Sensitive Hall-Effect Switches
THERMAL CHARACTERISTICS: may require derating at maximum conditions; see application information
Characteristic
Symbol
Test Conditions*
Value
Package LH, 1-layer PCB with copper limited to solder pads
228
Package Thermal Resistance
RθJA
Package LH, 2-layer PCB with 0.463 in.2 of copper area each side
connected by thermal vias
110
Package UA, 1-layer PCB with copper limited to solder pads
165
Units
ºC/W
ºC/W
ºC/W
*Additional thermal information available on Allegro website.
VDD(max)
VDD(min)
Power Dissipation versus Ambient Temperature
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
20
(R1θ-JlaAy=e(Rr12θP6J-AlC5ay=BºeC,1r P1/PW0aCc)ºBCk,a/PWga)eckUaAge LH
(1R-θlJaAye=r2P2C8BºC, P/Wac)kage LH
40 60 80 100 120 140 160 180
Temperature (°C)
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for A3213 electronic component. |
| Information | Total 11 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ A3213.PDF Datasheet ] | |
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