Product Overview
The Allegro A1101-A1104 and A1106 Hall-effect switches are advanced BiCMOS technology devices designed as replacements for older Allegro 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. They are suitable for automotive and industrial motor commutation applications, providing robust protection with a 30 V absolute maximum voltage rating without external components. The family offers various magnetic switchpoint levels and is available in ultrasmall, lead-free packages with matte-tin plating.
Product Attributes
- Brand: Allegro
- Technology: BiCMOS
- Certifications: AEC-Q100 automotive qualified
- Package Types: SOT23W (LH), 3-pin SIP (UA)
- Lead Finish: 100% matte-tin-plated leadframes
- Environmental: Lead (Pb) free
Technical Specifications
| Part Number | Mounting | Ambient Temp. (TA) | BRP (Min) (G) | BOP (Max) (G) | VCC (V) | Output Leakage (A) | Output On Voltage (mV) | Power-On Time (s) | Output Rise Time (ns) | Output Fall Time (ns) | Supply Current (mA) | Reverse Battery Current (mA) |
| A1101ELHLT-T | SOT23W surface mount | 40C to 85C | 10 | 175 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1101LLHLT-T | SOT23W surface mount | 40C to 150C | 10 | 175 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1101EUA-T | SIP through hole | 40C to 85C | 10 | 175 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1101LUA-T | SIP through hole | 40C to 150C | 10 | 175 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1102ELHLT-T | SOT23W surface mount | 40C to 85C | 60 | 245 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1102LLHLT-T | SOT23W surface mount | 40C to 150C | 60 | 245 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1102EUA-T | SIP through hole | 40C to 85C | 60 | 245 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1102LUA-T | SIP through hole | 40C to 150C | 60 | 245 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1103ELHLT-T | SOT23W surface mount | 40C to 85C | 150 | 355 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1103LLHLT-T | SOT23W surface mount | 40C to 150C | 150 | 355 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1103LUA-T | SIP through hole | 40C to 150C | 150 | 355 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1104EUA-T | SIP through hole | 40C to 85C | 25 | 450 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1104LLHLT-T | SOT23W surface mount | 40C to 150C | 25 | 450 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1104LUA-T | SIP through hole | 40C to 150C | 25 | 450 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1106EUA-T | SIP through hole | 40C to 85C | 160 | 430 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1106LLHLT-T | SOT23W surface mount | 40C to 150C | 160 | 430 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 | |
| A1106LUA-T | SIP through hole | 40C to 150C | 160 | 430 | 3.8 - 24 | 215 400 | 4 | 400 | 400 | 4.1 - 7.5 (ON), 3.8 - 7.5 (OFF) | 10 |
2304140030_ALLEGRO-A1103LLHLT-T_C2655025.pdf
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