A3214LUA-T Allegro Microsystems Inc, A3214LUA-T Datasheet

IC,HALL-EFFECT SWITCH,DIFFERENTIAL,BICMOS,SIP,3PIN,PLASTIC

A3214LUA-T

Manufacturer Part Number
A3214LUA-T
Description
IC,HALL-EFFECT SWITCH,DIFFERENTIAL,BICMOS,SIP,3PIN,PLASTIC
Manufacturer
Allegro Microsystems Inc
Type
Omnipolar Switchr
Datasheet

Specifications of A3214LUA-T

Rohs Compliant
YES
Sensing Range
±70G Trip, ±10G Release
Voltage - Supply
2.4 V ~ 5.5 V
Current - Supply
2mA
Current - Output (max)
1mA
Output Type
Digital, Open Collector
Features
Ultra Sensitive
Operating Temperature
-40°C ~ 150°C
Package / Case
3-SIP
Hall Effect Type
Omnipolar
Output Current
1mA
Sensor Case Style
SIP
No. Of Pins
3
Supply Voltage Range
2.4V To 5.5V
Operating Temperature Range
-40°C To +150°C
Svhc
No SVHC (15
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3 contact MLP/DFN
(suffix EL)
Features and Benefits
▪ Micropower operation
▪ Operatewith north or south pole
▪ 2.4 to 5.5 V battery operation
▪ Chopper stabilized
▪ High ESD protection
▪ Sol id state reliability
▪ Small size
▪ Easily assembly into applications due to magnetic pole
Packages
27622.62-DS Rev. S
independence
▫ Superior temperature stability
▫ Extremely low switchpoint drift
▫ Insensitive to physical stress
Not to scale
X
SUPPLY
Micropower Ultra-Sensitive Hall-Effect Switches
SWITCH
3 pin surface mount
SOT23-W (suffix LH)
3 lead ultramini SIP
(suffix UA)
Functional Block Diagram
TIMING
LOGIC
Description
The A3213 and A3214 integrated circuits are ultra-sensitive,
pole in de pen dent Hall-effect switches with a latched digital
output. They are es pe cial ly suited for operation in battery-
operated, hand-held equip ment such as cellular and cordless
tele phones, pagers, and palmtop com put ers. A 2.4 to 5.5 V
operation and a unique clocking scheme reduce the average
op er at ing 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 suf fi cient 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 (dy nam ic offset cancellation), which reduces the
residual offset voltage normally caused by device overmolding,
temperature de pen den cies, and thermal stress.
Continued on the next page…
A3213 and A3214
Dwg. FH-020-5
GROUND
OUTPUT

Related parts for A3214LUA-T

A3214LUA-T Summary of contents

Page 1

Micropower Ultra-Sensitive Hall-Effect Switches Features and Benefits ▪ Micropower operation ▪ Operatewith 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 ...

Page 2

... A3213LLHLT-T use the A3213ELHLT-T, for the A3213LUA-T use the A3213EUA-T, for the A3214LLHLT-T use the A3214ELHLT-T, and for the A3214LUA-T use the A3214EUA-T; the A3214EUA-T will be added to our web site and will be available for sampling by the end of April 2011. Status change: March 8, 2011. ...

Page 3

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 Absolute Maximum Ratings Characteristic Supply Voltage Magnetic Flux Density Output Off Voltage Output Current Operating Ambient Temperature Maximum Junction Temperature Storage Temperature Pin-out Diagrams Number Name EL VDD Input ...

Page 4

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 ELECTRICAL CHARACTERISTICS Characteristic Supply Voltage Range Output Leakage Current Output On Voltage Awake Time Period Duty Cycle Chopping Frequency Supply Current Typical Data 25°C and V = 3.0 V ...

Page 5

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information Characteristic Package Thermal Resistance *Additional thermal information available on Allegro website. Symbol Test Conditions* Package LH, 1-layer PCB with copper limited to ...

Page 6

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 A TEMPERATURE, T TYPICAL OPERATING CHARACTERISTICS as a function of temperature (V TEMPERATURE TEMPERATURE ...

Page 7

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 A 3 SUPPLY VOLTAGE, V TYPICAL OPERATING CHARACTERISTICS as a function of supply voltage (T SUPPLY VOLTAGE ( ( ...

Page 8

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 Low Average Power. Internal timing circuitry activates the IC for 60 μs and deactivates it for the remainder of the pe- riod (240 μs for the A3213 and 60 ms for the A3214). ...

Page 9

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 Applications. Allegro's pole-independent sensing technique allows for operation with either a north pole or south pole magnet orientation, enhancing the flexibility of the device in application assembling. The state-of-the-art technology provides the same ...

Page 10

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 E 2.00 ±0. 0.08 C +0.07 0.25 –0.05 0.40 ±0.05 For Reference Only, not for tooling use (reference DWG-2865; reference JEDEC MO-229UCCD) Dimensions in millimeters Exact case and lead configuration at ...

Page 11

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 +0.12 2.98 –0.08 3 +0.10 2.90 –0. 10° REF 0.95 BSC For Reference Only; not for tooling use (reference dwg. 802840) Dimensions in millimeters Dimensions exclusive of mold flash, gate burrs, ...

Page 12

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 +0.08 4.09 –0.05 45° +0.08 3.02 –0.05 2.16 MAX 0.51 REF 1 2 15.75 ±0.51 +0.05 0.43 –0.07 Package UA, 3-Pin SIP 2.07 1.52 ±0.05 1.33 E Mold Ejector Pin ...

Page 13

A3213 and Micropower Ultra-Sensitive Hall-Effect Switches A3214 Revision History Revision Rev. R Copyright ©2003-2010, Allegro MicroSystems, Inc. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such de par tures from the detail spec ...

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