Product Overview
The Allegro A139x family of linear Hall effect sensor ICs offers a voltage output proportional to the applied magnetic field. Designed for battery-operated applications, these sensors minimize current consumption to less than 25 A with a user-selectable sleep mode, making them ideal for devices like cellular phones, digital cameras, and portable tools. Key features include a high-impedance output during sleep mode for multi-device connections to a single A-to-D converter, temperature-stable quiescent output voltage and sensitivity, and compatibility with 2.5 to 3.5 V power supplies. The devices are available in a miniature MLP/DFN package and provide solid-state reliability with preset sensitivity and offset at final test.
Product Attributes
- Brand: Allegro MicroSystems, LLC
- Package Type: 6-pin MLP/DFN (suffix EH)
- Lead Plating: 100% matte tin
- Certifications: Pb (lead) free
Technical Specifications
| Characteristic | Model | 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. VREF VCC. Degradation occurs for VREF < 2.5 V. |
| Active Mode Supply Current | A139x | - | 3.2 | - | mA | VSLEEP > VINH, TA = 25C |
| Sleep Mode Supply Current | A139x | - | 0.025 | - | mA | VSLEEP < VINL, TA = 25C |
| Power Consumption (Active Mode) | A139x | - | 10 | - | mW | |
| Operating Ambient Temperature Range | A139x | -20 | - | 85 | C | |
| ESD Protection | A139x | > 3 | - | - | kV | |
| Sensitivity (Typ.) | A1391 | - | 1.25 | - | mV/G | TA = 25C, VCC = VREF = VCCN |
| Sensitivity (Typ.) | A1392 | - | 2.50 | - | mV/G | TA = 25C, VCC = VREF = VCCN |
| Sensitivity (Typ.) | A1393 | - | 5 | - | mV/G | TA = 25C, VCC = VREF = VCCN |
| Sensitivity (Typ.) | A1395 | - | 10 | - | mV/G | TA = 25C, VCC = VREF = VCCN |
| Quiescent Output Voltage | A139x | - | 0.500 VREF | - | V | TA = 25C, B = 0 G |
| Output Bandwidth (-3 dB) | A139x | - | 10 | - | kHz | VOUT = 1 Vpp sinusoidal, VCC = VCCN |
| Power-On Time | A139x | - | 40 | 60 | s | Time until output reaches 90% of value after VSLEEP exceeds VINH |
| Power-Off Time | A139x | - | 1 | - | s | Time from VSLEEP to LOW until ICC < 100 A. Output goes to high-impedance. |
| Package Dimensions | MLP/DFN | 2.00 0.15 | - | 3.00 0.15 | mm | Nominal height 0.75 mm |
2304140030_ALLEGRO-A1393SEHLT-T_C146391.pdf
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