A1186LUA Allegro Microsystems Inc, A1186LUA Datasheet

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A1186LUA

Manufacturer Part Number
A1186LUA
Description
IC SWITCH HALL EFFECT UNI 3-SIP
Manufacturer
Allegro Microsystems Inc
Type
Unipolar Switchr
Datasheet

Specifications of A1186LUA

Sensing Range
10G ~ 60G Trip - Programmable, Fixed Release
Voltage - Supply
3.5 V ~ 24 V
Current - Supply
6.9mA
Output Type
Digital, Open Collector
Features
Programmable
Operating Temperature
-40°C ~ 150°C
Package / Case
3-SIP
Lead Free Status / RoHS Status
Contains lead / RoHS non-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.
These devices are in production, however, they have been deemed
Pre-End of Life. These products are approaching end of life. Within a
minimum of 6 months, these devices will enter their final, Last Time
Buy, order phase.
Currently available next generation replacement parts are available:
Date of status change: March 8, 2011
Recommended Substitutions:
NOTE: For detailed information on purchasing options, contact your
local Allegro field applications engineer or sales representative.
• for the A1185EUA-T use the
• for the A1185LUA-T and the A1186LUA-T use the
• for the A1185ELHLT-T use the
• for the A1186ELHLT-T and the A1186LLHLT-T use the
Chopper-Stabilized Unipolar Hall-Effect Switches
Ultrasensitive Two-Wire Field-Programmable
A1192LUA-T
A1192LLHLX-T
A1193LUA-T
A1193LLHLX-T
A1185 and A1186

Related parts for A1186LUA

A1186LUA Summary of contents

Page 1

... Recommended Substitutions: Currently available next generation replacement parts are available: • for the A1185EUA-T use the • for the A1185LUA-T and the A1186LUA-T use the • for the A1185ELHLT-T use the • for the A1186ELHLT-T and the A1186LLHLT-T use the NOTE: For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative ...

Page 2

Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches Features and Benefits ▪ Chopper stabilization ▫ Low switchpoint drift over operating temperature range ▫ Low sensitivity to stress ▪ Field programmable for optimized switchpoints ▪ On-chip protection ▫ Supply transient protection ▫ ...

Page 3

... A1185EUA-T Bulk, 500 pieces/bag A1185LUA-T Bulk, 500 pieces/bag A1186ELHLT-T 7-in. reel, 3000 pieces/reel A1186LLHLT-T 7-in. reel, 3000 pieces/reel A1186LUA-T Bulk, 500 pieces/bag 1 Contact Allegro for additional packing options. 2 South (+) magnetic fields must be of sufficient strength. Absolute Maximum Ratings Characteristic Supply Voltage ...

Page 4

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches ELECTRICAL CHARACTERISTICS Characteristic Symbol Supply Voltage 1 Supply Current 2 Supply Zener Clamp Voltage V 3 Supply Zener Clamp Current I Reverse Supply Current 4 Output Slew Rate Chopping Frequency 5 Power-On ...

Page 5

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches I versus Ambient Temperature CC(L) at Various Levels of V (A1185 and A1186 - 100 Ambient Temperature Set by Specific Programming Bit ...

Page 6

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information Characteristic Package Thermal Resistance *Additional thermal information available on Allegro Web site. Ultrasensitive Two-Wire Field-Programmable Symbol Test Conditions* Package LH, 1-layer ...

Page 7

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches Operation The output the A1185 switches low after the magnetic CC field at the Hall element exceeds the operate point threshold When the magnetic field is reduced ...

Page 8

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches Chopper Stabilization Technique A limiting factor for switchpoint accuracy when using Hall effect technology is the small signal voltage developed across the Hall element. This voltage is proportionally small relative to the ...

Page 9

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches For additional general application information, visit the Allegro Web site at www. allegromicro.com. Typical Application and Programming Circuit The A118x family of devices MUST be protected by an exter- nal bypass capacitor, ...

Page 10

A1185 and A1186 Chopper-Stabilized Unipolar 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 ...

Page 11

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches Programming Protocol The operate switchpoint can be field-programmed so, a coded series of voltage pulses through the VCC pin is used to set bitfields in onboard registers. ...

Page 12

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches The pulse sequences consist of the following groups of pulses enable sequence bitfield address sequence. 3. When permanently setting the bitfield, a long V ing pulse. (Note: Blown ...

Page 13

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches The first segment of code is a Enabling Addressing Mode. keying sequence used to enable the bitfield addressing mode. As shown in figure 7, this segment consists of one short V one ...

Page 14

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches +0.12 2.98 –0.08 1.49 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, ...

Page 15

A1185 and A1186 Chopper-Stabilized Unipolar Hall Effect Switches +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 Copyright ©2004-2010, Allegro MicroSystems, Inc. Allegro MicroSystems, Inc. reserves the right to make, from ...

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