A3230 ALLEGRO [Allegro MicroSystems], A3230 Datasheet
A3230
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A3230 Summary of contents
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... The A3230 Hall-effect bipolar switch turns south polarity magnetic fi eld of suffi cient strength and switches off in a north polarity magnetic fi eld of suffi cient strength. Because the output state is not defi ...
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... A3230ELHLT-T Yes A3230EUA – Bulk, 500 pieces/bag A3230EUA-T Yes A3230LLHLT – 7-in. reel, 3000 pieces/reel A3230LLHLT-T Yes A3230LUA – Bulk, 500 pieces/bag A3230LUA-T Yes *Contact Allegro for additional packing options. VCC Terminal List Name VCC Connects power supply to chip VOUT Output from circuit ...
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... This so-called algebraic convention supports arithmetic comparison of north and south polarity values, where the relative strength of the fi eld is indicated by the absolute value of B, and the sign indicates the polarity of the fi eld (for example, a –100 G fi eld and a 100 G fi eld have equivalent strength, but opposite polarity). EMC (Electromagnetic Compatibility) REQUIREMENTS A3230-DS A3230 Test Conditions V Operating, T < 165°C ...
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... Supply Current (Off) versus Ambient Temperature 5.0 4.0 3.0 2.0 1.0 0 – (°C) A Output Voltage (On) versus Ambient Temperature 500 450 400 350 300 250 200 150 100 50 0 – (°C) A A3230-DS A3230 Electrical Characteristic Data 5.0 4.0 V (V) CC 3.0 24 3.6 2.0 1.0 0 100 150 0 5.0 4.0 V (V) CC 3.0 24 3.6 2.0 1.0 0 100 150 0 500 450 ...
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... Release Point versus Ambient Temperature -10 -15 -20 -25 – (°C) (° Hysteresis versus Ambient Temperature – (°C) A A3230-DS A3230 Magnetic Characteristic Data ( 3 -10 100 150 ( -10 3.8 -15 -20 -25 ...
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... Chopper-Stabilized Hall Effect Bipolar Switch THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information Characteristic Package Thermal Resistance A3230-DS A3230 Symbol Package LH, minimum-K PCB (single-sided with copper limited to solder pads) Package LH, low-K PCB (double-sided with R θJA 0.926 in 2 copper area) ...
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... B B band is more positive than B = 0), and panel C shows negative switch behavior (the B HYS such as the A3230, can operate in any of the three modes. A3230-DS A3230 Functional Description fi eld of the opposite polarity and of suffi cient strength causes it to switch. The hysteresis of latch mode behavior is shown in panel A of fi ...
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... OP back to the low state. The A3230 is designed to attain a small hysteresis, and thereby provide more sensitive switching. Although this means that true latching behavior cannot be guaranteed in all cases, proper switching can be ensured by use of both south and north mag- netic fi ...
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... Hall Element Figure 2. Chopper Stabilization Circuit (Dynamic Quadrature Offset Cancellation) A3230-DS A3230 The chopper stabilization technique uses a 200 kHz high-fre- quency clock. For demodulation process, a sample and hold technique is used, where the sampling is performed at twice the chopper frequency (400 kHz). This high-frequency operation allows a greater sampling rate, which results in higher accuracy and faster signal-processing capability ...
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... I ), without exceeding T CC(max) CC(max selected R and T . θJA A A3230-DS A3230 Example: Reliability for V low-K PCB. Observe the worst-case ratings for the device, specifi cally: R θJA I CC(max) Calculate the maximum allowable power level, P invert equation 3: ∆ fi gure of merit sum- This provides the allowable increase to T power dissipation ...
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... Chopper-Stabilized Hall Effect Bipolar Switch A3230-DS A3230 Package LH, 3-Pin (SOT-23W) Package UA, 3-Pin 11 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com ...
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... Chopper-Stabilized Hall Effect Bipolar Switch A3230-DS A3230 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; 5,917,320; and other patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such de par tures from the detail spec i fi ...