Product Overview
The A139x family of linear Hall effect sensor ICs offers a voltage output proportional to the applied magnetic field. Designed for ultra-low power consumption, these sensors draw less than 25 A in sleep mode, making them ideal for battery-operated devices like cellular phones, digital cameras, and portable tools. They feature a user-selectable sleep mode controlled via a dedicated pin, a high-impedance output during sleep mode for multi-device connectivity, and a ratiometric output that scales with the reference supply voltage. The devices are manufactured with BiCMOS monolithic circuits, incorporating Hall elements, temperature-compensating circuitry, a high-gain amplifier, and dynamic offset cancellation for high accuracy and stability.
Product Attributes
- Brand: Allegro MicroSystems, LLC
- Package Type: 6-pin MLP/DFN (suffix EH)
- Lead-Free: Yes (Pb-free)
- Leadframe Plating: 100% matte tin
Technical Specifications
| Characteristic | Model(s) | Min. | Typ. | Max. | Unit | Notes |
|---|---|---|---|---|---|---|
| Supply Voltage | A139x | 2.5 | - | 3.5 | V | |
| Nominal Supply Voltage | A139x | - | 3.0 | - | V | |
| Ratiometric Reference Voltage | A139x | - | - | VCC | V | VREF pin |
| Power Consumption (Active Mode) | A139x | - | 10 | - | mW | |
| Power Consumption (Sleep Mode) | A139x | - | 0.025 | - | mA | (typically) |
| Supply Current (Active Mode) | A139x | - | 3.2 | - | mA | |
| Supply Current (Sleep Mode) | A139x | - | 0.025 | - | mA | |
| Operating Ambient Temperature Range | A139x | -20 | - | 85 | C | |
| ESD Protection | A139x | >3 | - | - | kV | |
| Sensitivity | A1391 | - | 1.25 | - | mV/G | Typ. at 25C |
| Sensitivity | A1392 | - | 2.50 | - | mV/G | Typ. at 25C |
| Sensitivity | A1393 | - | 5 | - | mV/G | Typ. at 25C |
| Sensitivity | A1395 | - | 10 | - | mV/G | Typ. at 25C |
| Package Dimensions | MLP/DFN | 2.00 | - | 3.00 | mm | Nominal height 0.75 mm |
| Output Bandwidth (-3 dB point) | A139x | - | 10 | - | kHz | |
| Power-On Time | A139x | - | 40 | 60 | s | |
| Power-Off Time | A139x | - | 1 | - | s |
2304140030_ALLEGRO-A1392SEHLT-T_C146406.pdf
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