Product Overview
The Allegro A1101-A1104 and A1106 Hall-effect switches are advanced BiCMOS technology devices designed as successors to the 312x and 314x series. They offer fast power-on times, low-noise operation, and high switchpoint accuracy due to post-packaging programming. These switches integrate a voltage regulator, Hall-voltage generator, amplifier, Schmitt trigger, and NMOS output transistor on a single silicon chip, enabling operation from 3.8 to 24 V with 30 V absolute maximum voltage rating for robust automotive and industrial motor commutation applications. Their compact BiCMOS process allows for ultra-small package options, including SOT23W (LH) and SIP (UA), both lead-free with matte-tin plating.
Product Attributes
- Brand: Allegro
- Technology: BiCMOS
- Certifications: AEC-Q100 automotive qualified
- Package Styles: SOT23W (LH), SIP (UA)
- Lead Finish: 100% matte-tin-plated leadframes
- Environmental: Lead (Pb) free
Technical Specifications
| Part Number | Mounting | Ambient Temperature (TA) | BRP (Min) | BOP (Max) | VCC Operating | BOP (Typ) | BRP (Typ) | BHYS (Typ) |
| A1101ELHLT-T | 3-pin SOT23W surface mount | 40C to 85C | 10 G | 175 G | 3.8 to 24 V | 100 G | 45 G | 55 G |
| A1101LLHLT-T | 3-pin SOT23W surface mount | 40C to 150C | 10 G | 175 G | 3.8 to 24 V | 100 G | 45 G | 55 G |
| A1101EUA-T | 3-pin SIP through hole | 40C to 85C | 10 G | 175 G | 3.8 to 24 V | 100 G | 45 G | 55 G |
| A1101LUA-T | 3-pin SIP through hole | 40C to 150C | 10 G | 175 G | 3.8 to 24 V | 100 G | 45 G | 55 G |
| A1102ELHLT-T | 3-pin SOT23W surface mount | 40C to 85C | 60 G | 245 G | 3.8 to 24 V | 180 G | 125 G | 55 G |
| A1102LLHLT-T | 3-pin SOT23W surface mount | 40C to 150C | 60 G | 245 G | 3.8 to 24 V | 180 G | 125 G | 55 G |
| A1102EUA-T | 3-pin SIP through hole | 40C to 85C | 60 G | 245 G | 3.8 to 24 V | 180 G | 125 G | 55 G |
| A1102LUA-T | 3-pin SIP through hole | 40C to 150C | 60 G | 245 G | 3.8 to 24 V | 180 G | 125 G | 55 G |
| A1103ELHLT-T | 3-pin SOT23W surface mount | 40C to 85C | 150 G | 355 G | 3.8 to 24 V | 280 G | 225 G | 55 G |
| A1103LLHLT-T | 3-pin SOT23W surface mount | 40C to 150C | 150 G | 355 G | 3.8 to 24 V | 280 G | 225 G | 55 G |
| A1103LUA-T | 3-pin SIP through hole | 40C to 150C | 150 G | 355 G | 3.8 to 24 V | 280 G | 225 G | 55 G |
| A1104EUA-T | 3-pin SIP through hole | 40C to 85C | 25 G | 450 G | 3.8 to 24 V | G | G | 55 G |
| A1104LLHLT-T | 3-pin SOT23W surface mount | 40C to 150C | 25 G | 450 G | 3.8 to 24 V | G | G | 55 G |
| A1104LUA-T | 3-pin SIP through hole | 40C to 150C | 25 G | 450 G | 3.8 to 24 V | G | G | 55 G |
| A1106EUA-T | 3-pin SIP through hole | 40C to 85C | 160 G | 430 G | 3.8 to 24 V | 340 G | 240 G | 105 G |
| A1106LLHLT-T | 3-pin SOT23W surface mount | 40C to 150C | 160 G | 430 G | 3.8 to 24 V | 340 G | 240 G | 105 G |
| A1106LUA-T | 3-pin SIP through hole | 40C to 150C | 160 G | 430 G | 3.8 to 24 V | 340 G | 240 G | 105 G |
2401241355_ALLEGRO-A1104LUA-T_C3716161.pdf
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