A1148 Allegro MicroSystems, A1148 Datasheet
A1148
Related parts for A1148
A1148 Summary of contents
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... A1147-DS, Rev. 8 Unipolar Hall Effect Switches Description The A1147 and A1148 devices are two-wire, unipolar, Hall effect switches that are factory-programmed at end-of-line to optimize ultrasensitive magnetic switchpoint accuracy. These devices use a patented high frequency chopper-stabilization technique, produced using the Allegro advanced BiCMOS ...
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... Certain variants cited in this footnote are in production but have been determined to be NOT FOR NEW DESIGN. This classification indicates that sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because obsolescence in the near future is probable. Samples are no longer available. Status change: May 1, 2006. These variants include: A1148LUA. 2 Contact Allegro for additional packing options ...
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... Low Current Ultrasensitive Two-Wire over the operating voltage and temperature ranges, unless otherwise specified Test Conditions > B for A1147; B < B for A1148 CCL > B for A1148; B < B for A1147 CCH –18 V RCC RCC mA 25°C ...
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... Various Levels (A1147 and A1148) – 100 150 Ambient Temperature, T (° Various Levels (A1147 and A1148 – 100 150 Ambient Temperature, T (°C) A Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www ...
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... A1147 and A1148 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. Low Current Ultrasensitive Two-Wire Symbol Test Conditions* Package LH, 1-layer PCB with copper limited to solder pads Package LH, 2-layer PCB with 0 ...
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... B– direction indicates decreasing south polarity field strength (including the case of increasing north polarity). Low Current Ultrasensitive Two-Wire Functional Description clean switching of the output even in the presence of external mechanical vibration and electrical noise. The A1148 device switches with opposite polarity for similar B in comparison to the A1147 (see figure 1). I CC(H) ...
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... A1147 and A1148 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 can be produced at the output of the Hall sensor ...
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... A1147 and A1148 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 and the noise generated by the chopper-stabilization func- tion. As shown in figure 3, a 0.01 μ ...
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... A1147 and A1148 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 improving the heat dissipation properties of the application ...
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... A1147 and A1148 Chopper-Stabilized Unipolar Hall Effect Switches EMC (Electromagnetic Compatibility) Requirements Package LH, 3-pin SOT VCC connection 3. GND Low Current Ultrasensitive Two-Wire Device Qualification Program Contact Allegro for information. Contact your local representative for EMC results. Test Name Reference Specification ESD – ...
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... A1147 and A1148 Chopper-Stabilized Unipolar Hall Effect Switches Preliminary dimensions, for reference only Dimensions in millimeters U.S. Customary dimensions (in.) in brackets, for reference only (reference JEDEC TO-236 AB, except case width and terminal tip-to-tip) Dimensions exclusive of mold flash, gate burrs, and dambar protrusions ...
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... A1147 and A1148 Chopper-Stabilized Unipolar Hall Effect Switches .122 .117 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 tions as may be required to permit improvements in the per for mance, reliability, or manufacturability of its products ...