A3245EUA-T Allegro Microsystems Inc, A3245EUA-T Datasheet

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A3245EUA-T

Manufacturer Part Number
A3245EUA-T
Description
IC SW HALL EFFECT OMNI 3-SIP
Manufacturer
Allegro Microsystems Inc
Type
Omnipolar Switchr
Datasheet

Specifications of A3245EUA-T

Sensing Range
±55G Trip, ±6G Release
Voltage - Supply
3.6 V ~ 24 V
Current - Supply
3.5mA
Output Type
Digital, Open Drain
Features
Regulated Voltage
Operating Temperature
-40°C ~ 85°C
Package / Case
3-SIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Output (max)
-
Allegro MicroSystems, Inc. reserves the right to make, from time to time, revisions to the anticipated product life cycle plan
for a product to accommodate changes in production capabilities, alternative product availabilities, or market demand. The
information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no respon-
sibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use.
Date of status change: January 31, 2011
These parts are in production but have been determined to be
NOT FOR NEW DESIGN. This classification indicates that sale of
this device is currently restricted to existing customer applications.
The device should not be purchased for new design applications
because obsolescence in the near future is probable. Samples are no
longer available.
Recommended Substitutions:
NOTE: For detailed information on purchasing options, contact your
local Allegro field applications engineer or sales representative.
For existing customer transition, and for new customers or new appli-
cations, contact Allegro Sales.
Chopper-Stabilized Omnipolar Hall-Effect Switches
Not for New Design
A3245

Related parts for A3245EUA-T

A3245EUA-T Summary of contents

Page 1

Chopper-Stabilized Omnipolar Hall-Effect Switches These parts are in production but have been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently restricted to existing customer applications. The device should not be purchased ...

Page 2

Chopper-Stabilized Omnipolar Hall-Effect Switches Features and Benefits ▪ Omnipolar operation ▪ Chopper stabilization ▫ Superior temperature stability ▫ Extremely low switchpoint drift ▫ Insensitive to physical stress ▪ Reverse battery protection ▪ Output short circuit protection ▪ Solid state reliability ...

Page 3

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches Description (continued) patented magnetic-polarity-independence feature makes this device an excellent replacement for reed switches, with improved ease of manufacturing, because the A3245 does not require manufacturers to orient their magnets. These devices allow simple ...

Page 4

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches OPERATING CHARACTERISTICS valid over full operating voltage and ambient temperature ranges, unless otherwise noted Characteristic Symbol Electrical Characteristics Supply Voltage 1 V Output Leakage Current I OUTOFF Output On Voltage V OUT(SAT) Output Current ...

Page 5

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches Supply Current (On) versus Ambient Temperature 5.0 4.0 3.0 2.0 1.0 0 – (°C) A Supply Current (Off) versus Ambient Temperature 5.0 4.0 3.0 2.0 1.0 0 – ...

Page 6

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches Operate Point (South) versus Ambient Temperature – (°C) A Release Point (South) versus Ambient Temperature ...

Page 7

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches Magnetic Characteristic Data (Continued) Operate Point (South) versus Supply Voltage (V) CC Release Point (South) versus Supply Voltage 50 45 ...

Page 8

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information Characteristic Package Thermal Resistance Symbol Test Conditions Package LH-3, 1-layer PCB with copper limited to solder pads R θJA Package LH-3, 2-layer PCB ...

Page 9

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches Operation The output of this device switches low (turns on) when a mag- netic fi eld perpendicular to the Hall element exceeds the oper- ate point, B (or is less than B ). After ...

Page 10

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches Chopper Stabilization Technique When using Hall-effect technology, a limiting factor for switchpoint accuracy is the small signal voltage developed across the Hall element. This voltage is disproportionally small relative to the offset that can ...

Page 11

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches Power Derating The device must be operated below the maximum junction temperature of the device Under certain combinations of J(max) peak conditions, reliable operation may require derating sup- plied power or improving ...

Page 12

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches +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, and ...

Page 13

A3245 Chopper-Stabilized Omnipolar Hall Effect Switches Copyright ©2005-2010, Allegro MicroSystems, Inc. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such de par tures from the detail spec tions as may be required to ...

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