A1184_06 ALLEGRO [Allegro MicroSystems], A1184_06 Datasheet
A1184_06
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A1184_06 Summary of contents
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Standard Two-Wire Field-Programmable Chopper-Stabilized Features and Benefits ▪ Chopper stabilization ▫ Low switchpoint drift over operating temperature range ▫ Low sensitivity to stress ▪ Field programmable for optimized switchpoints ▪ On-chip protection ▫ Supply transient protection ▫ Reverse-battery protection ▫ ...
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A1184 Description (continued) of two narrowly-specified ranges. Any output current level outside of these two ranges is a fault condition. The A1184 also features on-chip transient protection, and a Zener clamp to protect against overvoltage conditions on the supply line. ...
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A1184 ELECTRICAL CHARACTERISTICS Characteristic Symbol 1 Supply Voltage Supply Current 2 Supply Zener Clamp Voltage V Supply Zener Clamp Current 3 I Z(supply) Reverse Supply Current Output Slew Rate 4 Chopping Frequency Power-On Time 5 Power-On State 6 ...
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A1184 I versus Ambient Temperature CC(L) at Various Levels of V (A1184 - 100 Ambient Temperature, T Average B Bits versus Ambient Temperature OP (A1184) 700 600 500 400 300 200 100 ...
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A1184 THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information Characteristic Package Thermal Resistance *Additional thermal information available on Allegro Web site. Standard Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall Effect Switch Symbol Test Conditions* Package LH, 1-layer PCB with ...
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A1184 Operation The output the A1184 device switches high after the CC magnetic field at the Hall sensor exceeds the operate point threshold When the magnetic field is reduced to below the OP release point ...
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A1184 Chopper Stabilization Technique A limiting factor for switchpoint accuracy when using Hall effect technology is the small signal voltage developed across the Hall element. This voltage is proportionally small relative to the offset that can be produced at the ...
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A1184 For additional general application information, visit the Allegro MicroSystems Web site at www. allegromicro.com. Typical Application Circuit The A118x family of devices must be protected by an external bypass capacitor connected between the supply, VCC, BYP and ...
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A1184 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 ...
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A1184 Programming Protocol The operate switchpoint can be field-programmed so, a coded series of voltage pulses through the VCC pin is used to set bitfields in onboard registers. The effect on the device output can ...
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A1184 The pulse sequences consist of the following groups of pulses enable sequence bitfield address sequence. 3. When permanently setting the bitfield, a long V ing pulse. (Note: Blown bit fuses cannot be reset.) 4. When ...
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A1184 The first segment of code is a Enabling Addressing Mode. keying sequence used to enable the bitfield addressing mode. As shown in figure 7, this segment consists of one short V one V pulse, and one short V pulse, ...
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A1184 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 Exact case ...
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A1184 .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 ...