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Specifications
Operating Current:
4mA
Operating Temperature:
-40℃~+150℃
Voltage - Supply:
3V~24V
Magnetic Field Range:
±9mT
Mfr. Part #:
A1221LLHLT-T
Package:
SOT-23
Key Attributes
Model Number:
A1221LLHLT-T
Product Description
Product Overview
The A1220, A1221, A1222, and A1223 are highly temperature-stable and stress-resistant Hall-effect sensor ICs designed for operation up to 150C. Featuring dynamic offset cancellation for superior high-temperature performance, these devices integrate a voltage regulator, Hall-voltage generator, amplifier, chopper stabilization, Schmitt trigger, and a short-circuit protected open-drain output. They operate from supply voltages of 3 to 24 V and are activated by a sufficient south pole strength, deactivated by a sufficient north pole strength. Available in SOT23W and SIP packages, they offer solid-state reliability and are AEC-Q100 automotive qualified.
Product Attributes
- Brand: Allegro MicroSystems
- Certifications: AEC-Q100 automotive qualified, Quality Managed (QM)
- Material: Silicon chip, Lead (Pb) free, 100% matte-tin-plated leadframes
- Origin: U.S.A.
Technical Specifications
| Part Number | Package | Ambient Temperature Range | BRP (Min) | BOP (Max) | Packing |
| A1220ELHLX-T | 3-pin SOT23W surface mount | 40C to 85C | 40 G | 40 G | 13-in. reel, 10000 pieces/reel |
| A1220ELHLT-T | 3-pin SOT23W surface mount | 40C to 85C | 40 G | 40 G | 7-in. reel, 3000 pieces/reel |
| A1220EUA-T | 3-pin SIP through hole | 40C to 85C | 40 G | 40 G | Bulk, 500 pieces/bag |
| A1220LLHLX-T | 3-pin SOT23W surface mount | 40C to 150C | 40 G | 40 G | 13-in. reel, 10000 pieces/reel |
| A1220LLHLT-T | 3-pin SOT23W surface mount | 40C to 150C | 40 G | 40 G | 7-in. reel, 3000 pieces/reel |
| A1220LUA-T | 3-pin SIP through hole | 40C to 150C | 40 G | 40 G | Bulk, 500 pieces/bag |
| A1221ELHLX-T | 3-pin SOT23W surface mount | 40C to 85C | 90 G | 90 G | 13-in. reel, 10000 pieces/reel |
| A1221ELHLT-T | 3-pin SOT23W surface mount | 40C to 85C | 90 G | 90 G | 7-in. reel, 3000 pieces/reel |
| A1221EUA-T | 3-pin SIP through hole | 40C to 85C | 90 G | 90 G | Bulk, 500 pieces/bag |
| A1221LLHLX-T | 3-pin SOT23W surface mount | 40C to 150C | 90 G | 90 G | 13-in. reel, 10000 pieces/reel |
| A1221LLHLT-T | 3-pin SOT23W surface mount | 40C to 150C | 90 G | 90 G | 7-in. reel, 3000 pieces/reel |
| A1221LUA-T | 3-pin SIP through hole | 40C to 150C | 90 G | 90 G | Bulk, 500 pieces/bag |
| A1222ELHLT-T | 3-pin SOT23W surface mount | 40C to 85C | 150 G | 150 G | 7-in. reel, 3000 pieces/reel |
| A1222ELHLX-T | 3-pin SOT23W surface mount | 40C to 85C | 150 G | 150 G | 13-in. reel, 10000 pieces/reel |
| A1222EUA-T | 3-pin SIP through hole | 40C to 85C | 150 G | 150 G | Bulk, 500 pieces/bag |
| A1222LLHLT-T | 3-pin SOT23W surface mount | 40C to 150C | 150 G | 150 G | 7-in. reel, 3000 pieces/reel |
| A1222LLHLX-T | 3-pin SOT23W surface mount | 40C to 150C | 150 G | 150 G | 13-in. reel, 10000 pieces/reel |
| A1222LUA-T | 3-pin SIP through hole | 40C to 150C | 150 G | 150 G | Bulk, 500 pieces/bag |
| A1223ELHLT-T | 3-pin SOT23W surface mount | 40C to 85C | 180 G | 180 G | 7-in. reel, 3000 pieces/reel |
| A1223ELHLX-T | 3-pin SOT23W surface mount | 40C to 85C | 180 G | 180 G | 13-in. reel, 10000 pieces/reel |
| A1223EUA-T | 3-pin SIP through hole | 40C to 85C | 180 G | 180 G | Bulk, 500 pieces/bag |
| A1223LLHLT-T | 3-pin SOT23W surface mount | 40C to 150C | 180 G | 180 G | 7-in. reel, 3000 pieces/reel |
| A1223LLHLX-T | 3-pin SOT23W surface mount | 40C to 150C | 180 G | 180 G | 13-in. reel, 10000 pieces/reel |
| A1223LUA-T | 3-pin SIP through hole | 40C to 150C | 180 G | 180 G | Bulk, 500 pieces/bag |
Electrical Characteristics
| Characteristic | Symbol | Test Conditions | Min. | Typ. | Max. | Unit |
| Forward Supply Voltage | VCC | Operating, TJ < 165C | 3 | 24 | V | |
| Output Leakage Current | IOUTOFF | VOUT = 24 V, B < BRP | 10 | A | ||
| Output Saturation Voltage | VOUT(SAT) | IOUT = 20 mA, B > BOP | 185 | 500 | mV | |
| Output Current Limit | IOM | B > BOP | 30 | 60 | mA | |
| Power-On Time | tPO | VCC > 3.0 V, B < BRP(min) 10 G, B > BOP(max) + 10 G | 25 | s | ||
| Output Rise Time | tr | RL = 820 , CL = 20 pF | 0.2 | 2 | s | |
| Output Fall Time | tf | RL = 820 , CL = 20 pF | 0.1 | 2 | s | |
| Supply Current (On) | ICC(ON) | B > BOP, VCC = 12 V | 4 | mA | ||
| Supply Current (Off) | ICC(OFF) | B < BRP, VCC = 12 V | 4 | mA | ||
| Reverse Supply Current | IRCC | VRCC = 20 V | 5 | mA | ||
| Supply Zener Clamp Voltage | VZ | ICC = 5 mA; TA = 25C | 28 | V | ||
| Zener Impedance | IZ | ICC = 5 mA; TA = 25C | 50 |
Magnetic Characteristics
| Characteristic | Part Number | Min. | Typ. | Max. | Unit |
| Operate Point | A1220 | 5 | 22 | 40 | G |
| Operate Point | A1221 | 15 | 50 | 90 | G |
| Operate Point | A1222 | 70 | 110 | 150 | G |
| Operate Point | A1223 | 100 | 150 | 180 | G |
| Release Point | A1220 | 40 | 23 | 5 | G |
| Release Point | A1221 | 90 | 50 | 15 | G |
| Release Point | A1222 | 150 | 110 | 70 | G |
| Release Point | A1223 | 180 | 150 | 100 | G |
| Hysteresis | A1220 | 10 | 45 | 80 | G |
| Hysteresis | A1221 | 30 | 100 | 180 | G |
| Hysteresis | A1222 | 140 | 220 | 300 | G |
| Hysteresis | A1223 | 200 | 300 | 360 | G |
2410010131_ALLEGRO-A1221LLHLT-T_C696107.pdf
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