A1145EUATI ALLEGRO [Allegro MicroSystems], A1145EUATI Datasheet
A1145EUATI
Related parts for A1145EUATI
A1145EUATI Summary of contents
Page 1
Package LH, 3-pin SOT Package UA, 3-pin SIP AB SO LUTE MAX I MUM RAT INGS Supply Voltage, V ...........................................28V CC Reverse-Supply Voltage, V ........................ –18 V RCC Magnetic Flux Density, B .........................Unlimited Power Dissipation, P ............................ Graph ...
Page 2
... Tape and Reel, 3000 pieces/reel A1145ELHLT-T Yes A1145EUA – Bulk Bag, 500 pieces/bag A1145EUA-T Yes A1145EUATI – Tape and Reel, 2000 pieces/reel A1145EUATI-T Yes A1145LLHLT – Tape and Reel, 3000 pieces/reel A1145LLHLT-T Yes A1145LUA – Bulk Bag, 500 pieces/bag A1145LUA-T Yes A1145LUATI – ...
Page 3
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches V+ VCC 0.01 uF Package LH, 3-pin SOT VCC connection 3. GND A1145-DS, Rev. 6 A1145 and A1146 Functional Block Diagram Regulator Clock/Logic Low-Pass Filter Amp 2 ...
Page 4
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches ELECTRICAL CHARACTERISTICS Characteristic Symbol Supply Voltage 1 2 Supply Current Reverse Supply Current Supply Zener Clamp Voltage V Supply Zener Clamp Current 3 I ZSUPPLY Output Slew Rate 4 Chopping Frequency Power-On Time ...
Page 5
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches Supply Current (Low) versus Ambient Temperature at Various Levels of V (A1145 and A1146 – 100 Ambient Temperature, T Operate Point versus Ambient Temperature at ...
Page 6
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information Characteristic Package Thermal Resistance *Additional thermal information available on Allegro Web site. A1145-DS, Rev. 6 A1145 and A1146 Symbol Package LH, 1-layer ...
Page 7
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches Operation The output the A1145 device switches low after the mag- CC netic field at the Hall sensor exceeds the operate point threshold When the magnetic field is ...
Page 8
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches Chopper Stabilization Technique When using Hall-effect technology, a limiting factor for switchpoint accuracy is the small signal voltage developed across the Hall element. This voltage is disproportionally small relative to the offset that ...
Page 9
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches Typical Application Circuit The A114x family of devices must be protected by an external bypass capacitor connected between the supply, VCC, BYP and the ground, GND, of the device. C noise ...
Page 10
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches Power Derating The device must be operated below the maximum junction temperature of the device Under certain combinations of J(max) peak conditions, reliable operation may require derating sup- plied power or ...
Page 11
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches EMC (Electromagnetic Compatibility) Requirements A1145-DS, Rev. 6 A1145 and A1146 Device Qualification Program Contact Allegro for information. Contact your local representative for EMC results. Test Name Reference Specification ESD – Human Body Model ...
Page 12
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches 3.10 .122 2.90 .114 3 0.96 .038 NOM 2.10 .083 1.85 .073 3.00 .118 2.70 .106 1 0.50 .020 0.30 .012 0.55 .022 REF .122 .117 A1145-DS, Rev. 6 A1145 and A1146 Package ...
Page 13
Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches A1145-DS, Rev. 6 A1145 and A1146 The products described herein are manufactured under one or more of the following U.S. patents: 5,045,920; 5,264,783; 5,442,283; 5,389,889; 5,581,179; 5,517,112; 5,619,137; 5,621,319; 5,650,719; 5,686,894; 5,694,038; 5,729,130; ...