Allegro MicroSystems A1220/A1221/A1222/A1223 Hall-Effect Sensor ICs
Allegro MicroSystems A1220/A1221/A1222/A1223 Hall-Effect Sensor ICs are stress-resistant and temperature-stable devices designed for operation over extended temperature ranges up to 150°C. These sensor ICs feature superior high-temperature performance achieved by dynamic offset cancellation that reduces the residual offset voltage caused by device overmolding, temperature dependencies, and thermal stress. The Hall-effect sensor ICs come with an onboard regulator that allows operation with supply voltages of 3V to 24V. Operating down to 3V enables the device to be used in 3V applications or with additional external resistance in series with the supply pin for more excellent protection against high-voltage transient events. Typical applications include power closures/actuators, electronic power steering, BLDC motors, and fan motors.
Features
- AEC-Q100 automotive qualified
- Quality Managed (QM)
- Symmetrical latch switch points
- Resistant to physical stress
- Superior temperature stability
- Output short-circuit protection
- Operation from unregulated supply down to 3V
- Reverse-battery protection
- Solid-state reliability
- Small package sizes
Specifications
- Absolute maximum ratings:
- 26.5V forward supply voltage (VCC)
- –30V reverse supply voltage (VRCC)
- 26V output off voltage (VOUT)
- 25mA continuous output current (IOUT)
- –65°C to 170°C storage temperature range (Tstg)
- Operating ambient temperature range (TA):
- –40°C to 85°C (Range E)
- –40°C to 150°C (Range L)
- 800kHz chopping frequency (fc)
- Supply current:
- ICC(ON):
- 4mA maximum at B>BOP, VCC=12V
- ICC(OFF):
- 4mA maximum at B<BRP, VCC=12V
- ICC(ON):
Applications
- Automotive:
- Power closures/actuators
- Electronic power steering
- Seat/windows/sunroof motors
- Trunk/door/liftgate motors
- Industrial motor/encoders
- Commutation/index sensing
- BLDC motors
- Fan motors
Functional Block Diagram
Related Products
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Additional Resources
- Allegro-Selection-Guide
- AN27701-Hall-Effect-IC-Application-Guide
- AN277031-Guidelines-For-Designing-Subassemblies-Using-Hall-Effect-Devices
- AN295047-Chemical-Exposure-of-Devices-Application-Note
- AN296061-Ring-Magnet-Speed-Sensing-For-Electronic-Power-Steering
- AN296065-Allegro-Hall-Effect-Sensor-ICs
- AN296067-Latching-Switch-Hall-Effect-IC-Basics
- AN296126-Semiconductor-Handling-Storage-Shelf-Life
View Results ( 22 ) Page
| Part Number | Operating Point Min/Max | Release Point Min/Max (Brp) | Operating Supply Voltage | Operating Supply Current | Maximum Output Current | Mounting Style |
|---|---|---|---|---|---|---|
| A1220ELHLT-T | 5 G to 40 G | - 40 G to - 5 G | 3 V to 24 V | 4 mA | 25 mA | SMD/SMT |
| A1221LLHLT-T | 15 G to 90 G | - 90 G to - 15 G | 3 V to 24 V | 4 mA | 25 mA | SMD/SMT |
| A1221LLHLX-T | 15 G to 90 G | - 90 G to - 15 G | 3.8 V to 24 V | 4 mA | 25 mA | SMD/SMT |
| A1220LLHLX-T | 5 G to 40 G | - 40 G to - 5 G | 3.8 V to 24 V | 4 mA | 25 mA | SMD/SMT |
| A1222LUA-T | 70 G to 150 G | - 150 G to - 70 G | 3 V to 24 V | 4 mA | 25 mA | Through Hole |
| A1221LUA-T | 15 G to 90 G | - 90 G to - 15 G | 3 V to 24 V | 4 mA | 25 mA | Through Hole |
| A1220LLHLT-T | 5 G to 40 G | - 40 G to - 5 G | 3 V to 24 V | 4 mA | 25 mA | SMD/SMT |
| A1223ELHLT-T | ||||||
| A1220EUA-T | 5 G to 40 G | - 40 G to - 5 G | 3 V to 24 V | 4 mA | 25 mA | Through Hole |
| A1221ELHLT-T | 15 G to 90 G | - 90 G to - 15 G | 3 V to 24 V | 4 mA | 25 mA | SMD/SMT |
Published: 2023-04-12
| Updated: 2023-05-19