Product Overview
The A1262 is a two-channel, latching Hall-effect sensor IC featuring both vertical and planar Hall elements. Its 2D architecture provides quadrature output signals with 90 phase separation, enabling the determination of speed and direction of rotating ring magnets. The sensor offers flexibility in magnetic design with two sensing options for vertical Hall plate orientation (X or Y), alongside a planar Hall plate sensitive to magnetic fields perpendicular to the package face (Z). It is suitable for applications requiring high sensitivity, output short-circuit protection, reverse-battery protection, and superior temperature stability.
Product Attributes
- Brand: Allegro MicroSystems
- Certifications: AEC-Q100 qualified (automotive grade)
- Package Options: 5-pin SOT23W (LH), 4-pin SIP (K)
- RoHS Compliant: Yes
- Lead Finish: 100% matte-tin
Technical Specifications
| Part Number | Package | Temperature Range (C) | Outputs | Description |
| A1262ELHLT-T | 5-pin SOT-23W | 40 to 85 | Y and Z | 7-in. reel, 3000 pieces/reel |
| A1262ELHLX-T | 5-pin SOT-23W | 40 to 85 | Y and Z | 13-in. reel, 10000 pieces/reel |
| A1262LK-Y-T | 4-pin SIP | 40 to 150 | Y and Z | Bulk bag, 500 pieces/bag |
| A1262LLHLT-T | 5-pin SOT-23W | 40 to 150 | Y and Z | 7-in. reel, 3000 pieces/reel |
| A1262LLHLX-T | 5-pin SOT-23W | 40 to 150 | Y and Z | 13-in. reel, 10000 pieces/reel |
| A1262ELHLT-X-T | 5-pin SOT-23W | 40 to 85 | X and Z | 7-in. reel, 3000 pieces/reel |
| A1262ELHLX-X-T | 5-pin SOT-23W | 40 to 85 | X and Z | 13-in. reel, 10000 pieces/reel |
| A1262LK-X-T | 4-pin SIP | 40 to 150 | X and Z | Bulk bag, 500 pieces/bag |
| A1262LLHLT-X-T | 5-pin SOT-23W | 40 to 150 | X and Z | 7-in. reel, 3000 pieces/reel |
| A1262LLHLX-X-T | 5-pin SOT-23W | 40 to 150 | X and Z | 13-in. reel, 10000 pieces/reel |
Electrical Characteristics
| Characteristic | Symbol | Test Conditions | Min. | Typ. [1] | Max. | Unit |
| Forward Supply Voltage | VDD | Operating, TJ < 165C | 4 | 24 | V | |
| Output Leakage Current | IOUTOFF | B < BRP | 10 | A | ||
| Output On Voltage | VOUT(SAT) | IOUT = 20 mA, B > BOP | 180 | 500 | mV | |
| Supply Current | IDD | 2 | 3 | 4.5 | mA | |
| Reverse-Battery Current | IRDD | VRDD = 16 V | 5 | mA | ||
| Supply Zener Clamp Voltage | VZ | ICC = 5 mA; TA = 25C | 28 | 34 | V | |
| Output Current | IOUT | 20 | mA | |||
| Output Short-Circuit Current Limit | IOUT(SINK)LIM | TJ < TJ(max), VOUT = 12 V | 30 | 60 | mA | |
| Output Sink Current, Peak | IOUT(SINK)PK | t < 3 seconds | 110 | mA | ||
| Chopping Frequency | fC | 800 | kHz | |||
| Output Rise Time | tr | RL = 820 , CS = 20 pF | 0.2 | s | ||
| Output Fall Time | tf | RL = 820 , CS = 20 pF | 0.1 | s | ||
| Power-On Time | tON | Both channels, VDD > VDD(MIN) | 32 | 48 | s | |
| Power-On State | POS | VDD > VDD(MIN), t< tON | Low |
Magnetic Characteristics
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
| Operate Point | BOP [4][5] | 1 | 17 | 40 | G | |
| Release Point | BRP [5] | 40 | 17 | 1 | G | |
| Hysteresis | BHYS | BOP BRP | 15 | 34 | 68 | G |
| Symmetry: Channel A, Channel B | BSYM(A), BSYM(B) | BOP(A) + BRP(A), BOP(B) + BRP(B) | 35 | 35 | G | |
| Operate Symmetry: BOP(A) BOP(B) | BSYM(AB,OP) | 25 | 25 | G | ||
| Release Symmetry: BRP(A) BRP(B) | BSYM(AB,RP) | 25 | 25 | G |
2504101957_ALLEGRO-A1262ELHLX-X-T_C17442232.pdf
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