Electronic Components Datasheet Search |
|
A3197LLT Datasheet(PDF) 5 Page - Allegro MicroSystems |
|
A3197LLT Datasheet(HTML) 5 Page - Allegro MicroSystems |
5 / 12 page 3197 PROTECTED, HIGH-TEMP., OPEN-COLLECTOR HALL-EFFECT LATCH www.allegromicro.com 26 V MAX 0+B 0 FLUX DENSITY Dwg. GH-034-2A -B RP B VOUT(SAT) BB V OP B OPERATION In operation, the output transistor is OFF until the strength of the magnetic field perpendicular to the surface of the chip exceeds the threshold or operate point (BOP). When the field strength exceeds BOP, the output transistor switches ON (a logic low) and is capable of sinking 35 mA of current. The output transistor switches OFF (a logic high) when magnetic field reversal results in a magnetic flux density below the OFF threshold (BRP). This is illustrated in the transfer characteristics graph. Note that the device latches; that is, a south pole of sufficient strength will turn the device ON. Removal of the south pole will leave the device ON. The presence of a north pole of sufficient strength is required to turn the device OFF. The switch points increase in sensitivity with increasing temperature to compensate for the typical ferrite magnet temperature characteristic. The simplest form of magnet that will operate these devices is a ring magnet. Other methods of operation are possible. TEST CIRCUIT AND TYPICAL APPLICATION TO µP 3 X Dwg. EH-006A VCC(UV) TO 26 V WITH TRANSIENTS L R L C REGULATED < 26 V VBB VCC BYPASS C 2 1 |
Similar Part No. - A3197LLT |
|
Similar Description - A3197LLT |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
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 |
Family Site : ic2ic.com |
icmetro.com |