Base De Datos

A3141, A3142, A3143, and A3144
Sensitive Hall Effect Switches for High-Temperature Operation

Discontinued Product
These parts are no longer in production The device should not be purchased fornew design applications. Samples are no longer available.

Date of status change: October 31, 2005

Recommended Substitutions:
For new customers and applications: • for the A3141, refer to theA1101 • for the A3142, refer to the A1102 • for the A3143, refer to the A1103 • for the A3144, refer to the A1104

NOTE: For detailed information on purchasing options, contact your local Allegro fieldapplications engineer or sales representative.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, revisions to the anticipated product life cycle plan for a product toaccommodate 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 responsibility for its use; nor for any infringements of patents or other rights of third parties which may result from its use.

3141 THRU 3144

SENSITIVE HALL-EFFECT SWITCHES FORHIGH-TEMPERATURE OPERATION
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 temperature and supply voltage changes. The unipolar switching characteristic makes these devices ideal for use with a simple bar or rod magnet. The four basic devices(3141, 3142, 3143, and 3144) are identical except for magnetic switch points. Each device includes a voltage regulator for operation with supply voltages of 4.5 to 24 volts, reverse battery protectiondiode, quadratic Hall-voltage generator, temperature compensation circuitry, smallsignal amplifier, Schmitt trigger, and an open-collector output to sink up to 25 mA. With suitable output pull up,...