Allegro MicroSystems A3046EU
The A3046EU/LU, A3056EU/LU, and A3058EU/LU Hall effect gear-tooth sensor ICs are monolithic integrated circuits that switch in response to differential magnetic fields created by ferrous targets. These devices are ideal for use in gear-tooth-based speed, position, and timing applications and operate down to zero rpm over a wide range of air gaps and temperatures. When combined with a backbiasing magnet and proper assembly techniques, devices can be configured to give 50% duty cycle or to switch on either leading, trailing, or both edges of a passing gear tooth or slot.
| Part No. |
A3046EU |
| Datasheet |
A3046EU
Download
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| Manufacturer |
 Allegro MicroSystems |
| Description |
HALL EFFECT GEAR-TOOTH SENSOR |
| Buy |
Stock & Price
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ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC . . . . . . . . . . . . . . 28 V Reverse Battery Voltage, VRCC . . . . . . . . . . . . . . . . . . . . . . -30 V Magnetic Flux Density, B . . . . . Unlimited Output OFF Voltage, VOUT . . . . . . . . . 28 V Reverse Output Voltage, VOUT . . . . . -0.5 V Output Current, IOUT . . . . . . . . . . . . 25 mA Package Power Dissipation, PD . . 500 mW Operating Temperature Range, TA Suffix “EU” . . . . . . . . . -40°C to +85°C Suffix “LU” . . . . . . . . -40°C to +150°C Storage Temperature Range, TS . . . . . . . . . . . . . . . -65°C to +170°C The six devices differ only in their magnetic switching values and operating temperature ranges. The low hysteresis of the A3046/56EU and A3046/56LU makes them perfectly suited for ABS (anti-lock brake system) or speed sensing applications where maintaining large air gaps is important. The A3046EU/LU features improved switch point stability with temperature over the A3056EU/LU. The high hysteresis of the A3058E...
