AH3144 Hall Sensor SENSITIVE HALL-EFFECT SWITCH INTEGRATED CIRCUITS x100pcs
AH3144 AH3144L Hall Sensor SENSITIVE HALL-EFFECT SWITCH INTEGRATED CIRCUITS 100pcs/Lot SENSITIVE Hall-effect Switch Integrated Circuits 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 SENSITIVE Hall-effect Switch Integrated Circuits 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. Each device includes a voltage regulator for operation with supply voltages of 4.5 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. Absolute maximum rating Parameter Symbol Value Unit Supply Voltage VCC 24 V Magnetic Flux Density B Unlimited mT Output OFF Voltage Vce 28 V Continuous Output Current IOL 50 mA Operating Temperature Range TA AH31XXE -25~85 ℃ AH31XXL -40~150 ℃ Storage Temperature Range TS -55~150 ℃ Electrical Characteristics TA=25℃ Parameter Symbol Test condition Type and Value Unit min typ max Supply Voltage VCC 4.5 - 24 V Output Saturation Voltage VOL Iout=20mA B>BOP - 200 400 mV Output Leakage Current IOH Vout=24V B<BRP - 0.1 10 μA Supply Current ICC VCC=Output Open - - 10 mA Output Rise Time tr RL=820Ω CL=20PF - 0.12 - μS Output Fall Time tf RL=820Ω CL=20PF - 0.18 - μS Magnet characteristics VCC=4.5～24V Parameter Symbol AH3142 AH3144 AH3145 Unit min typ max min typ max min typ max Operate Point BOP - - 21 - - 26 - - 28 mT Release Point BRP 2 - - 3 - - 3 - - mT Hysteresis BH 2.5 - - 4 - - 4 - - mT NOTE: 1mT=10GS