Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

3121 Datasheet(PDF) 1 Page - Allegro MicroSystems

Part No. 3121
Description  HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

3121 Datasheet(HTML) 1 Page - Allegro MicroSystems

  3121 Datasheet HTML 1Page - Allegro MicroSystems 3121 Datasheet HTML 2Page - Allegro MicroSystems 3121 Datasheet HTML 3Page - Allegro MicroSystems 3121 Datasheet HTML 4Page - Allegro MicroSystems 3121 Datasheet HTML 5Page - Allegro MicroSystems 3121 Datasheet HTML 6Page - Allegro MicroSystems 3121 Datasheet HTML 7Page - Allegro MicroSystems 3121 Datasheet HTML 8Page - Allegro MicroSystems  
Zoom Inzoom in Zoom Outzoom out
 1 / 8 page
background image
These Hall-effect switches are monolithic integrated circuits with
tighter magnetic specifications, designed to operate continuously over
extended temperatures to +150
°C, and are more stable with both tem-
perature and supply voltage changes. The unipolar switching character-
istic makes these devices ideal for use with a simple bar or rod magnet.
The three basic devices (3121, 3122, and 3123) are identical except for
magnetic switch points.
Each device includes a voltage regulator for operation with supply
voltages of 4.5 voltas to 24 volts, reverse battery protection diode,
quadratic Hall-voltage generator, temperature compensation circuitry,
small-signal amplifier, Schmitt trigger, and an open-collector output to
sink up to 25 mA. With suitable output pull up, they can be used with
bipolar or CMOS logic circuits. The 3121 is an improved replacement
for the 3113 and 3119.
The first character of the part number suffix determines the device
operating temperature range. Suffix ‘E–’ is for the automotive and
industrial temperature range of -40
°C to +85°C. Suffix ‘L–’ is for the
automotive and military temperature range of -40
°C to +150°C. Three
package styles provide a magnetically optimized package for most
applications. Suffix ‘–LT’ is a miniature SOT-89/TO-243AA transistor
package for surface-mount applications; suffix ‘–U’ is a three-lead
plastic mini-SIP while suffix ‘–UA’ is a three-lead ultra-mini-SIP.
HALL-EFFECT SWITCHES
FOR HIGH-TEMPERATURE OPERATION
Always order by complete part number, e.g., A3121EU .
ABSOLUTE MAXIMUM RATINGS
at T
A = +25°C
Supply Voltage, V
CC ........................... 30 V
Reverse Battery Voltage, V
RCC ........ -30 V
Magnetic Flux Density, B ....... Unlimited
Output OFF Voltage, V
OUT ................ 28 V
Reverse Output Voltage, V
OUT ........ -0.5 V
Continuous Output Current, I
OUT ... 25 mA
Operating Temperature Range, T
A
Suffix ‘E–’ ................. -40
°C to +85°C
Suffix ‘L–’ ............... -40
°C to +150°C
Storage Temperature Range,
T
S ..............................
-65
°C to +170°C
FEATURES and BENEFITS
I Superior Temp. Stability for Automotive or Industrial Applications
I 4.5 V to 24 V Operation … Needs Only An Unregulated Supply
I Open-Collector 25 mA Output … Compatible with Digital Logic
I Reverse Battery Protection
I Activate with Small, Commercially Available Permanent Magnets
I Solid-State Reliability … No Moving Parts
I Small Size
I Resistant to Physical Stress
Pinning is shown viewed from branded side.
3121, 3122, AND
3123
Dwg. PH-003A
1
V
CC
3
2


Similar Part No. - 3121

ManufacturerPart No.DatasheetDescription
List of Unclassifed Manufacturers
List of Unclassifed Man...
3121 ETC2-3121 Datasheet
113Kb / 2P
   FLAT WASHERS NYLON FIBRE
KR Electronics, Inc.
KR Electronics, Inc.
3121 KR-3121 Datasheet
54Kb / 3P
   68.25 MHz Bandpass Filter
Allegro MicroSystems
Allegro MicroSystems
3121 ALLEGRO-3121 Datasheet
154Kb / 8P
   SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION
List of Unclassifed Manufacturers
List of Unclassifed Man...
3121 ETC2-3121 Datasheet
68Kb / 1P
   WASHERS
Littelfuse
Littelfuse
3121.25 LITTELFUSE-3121.25 Datasheet
95Kb / 1P
   Axial Lead and Cartridge Fuses - Glass Body
More results

Similar Description - 3121

ManufacturerPart No.DatasheetDescription
Allegro MicroSystems
Allegro MicroSystems
3141 ALLEGRO-3141 Datasheet
142Kb / 8P
   SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION
3141 ALLEGRO-3141 Datasheet
154Kb / 8P
   SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION
Unisonic Technologies
Unisonic Technologies
SK1901 UTC-SK1901_15 Datasheet
218Kb / 8P
   HALL-EFFECT SWITCH FOR HIGH-TEMPERATURE OPERATION
SK1901 UTC-SK1901 Datasheet
235Kb / 8P
   HALL-EFFECT SWITCH FOR HIGH-TEMPERATURE OPERATION
SK1901 UTC-SK1901_12 Datasheet
196Kb / 8P
   HALL-EFFECT SWITCH FOR HIGH-TEMPERATURE OPERATION
Allegro MicroSystems
Allegro MicroSystems
3185 ALLEGRO-3185 Datasheet
181Kb / 8P
   HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION
A3195X ALLEGRO-A3195X Datasheet
149Kb / 8P
   HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION
A1225 ALLEGRO-A1225 Datasheet
325Kb / 12P
   Hall Effect Latch for High Temperature Operation
Unisonic Technologies
Unisonic Technologies
SK1901 UTC-SK1901_17 Datasheet
222Kb / 8P
   HALL-EFFECT SWITCH FOR HIGH-TEMPERATURE OPERATION
Allegro MicroSystems
Allegro MicroSystems
3134 ALLEGRO-3134 Datasheet
160Kb / 6P
   BIPOLAR HALL-EFFECT SWITCH FOR HIGH-TEMPERATURE OPERATION
More results


Html Pages

1  2  3  4  5  6  7  8 


Datasheet Download

Go To PDF Page


Link URL



Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz