3275 Datasheet | Allegro MicroSystems

feature dual plementary outputs. The latches are typically used to sense matched magnetic flux densities of alternating polarity from multipole ring magnets. Data Sheet 27632.2 Each sensor IC includes a Hall voltage generator, operational amplifier, Schmitt trigger, voltage regulator, and dual bipolar output transistors. The regulator allows use of the integrated circuit with supply voltages of 4.5 V to 24 V. If the Hall cell is exposed to a magnetic flux density greater than the operate threshold (BOP), OUTPUT goes low (turns on) and OUTPUT goes high (turns off). The outputs will hold (latch) this state until magnetic field reversal exposes the Hall cell to a magnetic flux density below the release threshold (BRP) when OUTPUT will go high (off) and OUTPUT will go low (on). This state is also latched. Under any condition one output is on while the other is off. Because the operating state switches only with magnetic field reversal, and not merely with a change in the strength, these integrated circuits qualify as true Hall-effect latches. These plementary-output Hall-effect latches are supplied in a four-pin plastic SIP, 0.200" (5.08 mm) wide, 0.130" (3.3 mm) high, and 0.060" (1.54 mm) thick. Dwg. PH-002 Pinning is shown viewed from branded side. GROUND OUTPUT SUPPLY OUTPUT FEATURES s s s s s s s Operable with Multipole Ring Magnets High Reliability Small Size Output patible with All Digital Logic Families 4.5 V to 24 V Operation High Hysteresis Level Minimizes Stray-Field Problems plementary Outputs ABSOLUTE MAXIMUM RATINGS Power Supply, VCC - - - . 25 V Magnetic Flux Density, B - . Unlimited Output OFF Voltage, VOUT - - 25 V Output ON Current, IOUT - - 50 m A Operating Temperature Range, TA - - - . . -20°C to +85°C Storage Temperature Range, TS - - - . -65°C to +150°C Always order by plete part number: UGN3275K...