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Product Attributes
| TYPE | DESCRIPTION |
| Category | Sensors, Transducers |
| Magnetic Sensors - Switches (Solid State) | |
| Mfr | Allegro MicroSystems |
| Series | Automotive, AEC-Q100 |
| Package | Bulk |
| Part Status | Active |
| Function | Latch |
| Technology | Hall Effect |
| Polarization | South Pole |
| Sensing Range | 4mT Trip, -4mT Release |
| Test Condition | ·-40℃~150℃ |
| Voltage - Supply | 3V ~ 24V |
| Current - Supply (Max) | 4mA |
| Current - Output (Max) | 25mA |
| Output Type | Open Drain |
| Features | - |
| Operating Temperature | ·-40℃~150℃ |
| Mounting Type | Through Hole |
| Supplier Device Package | 3-SIP |
| Package / Case | 3-SSIP |
Chopper-Stabilized Precision Hall-Effect Latches
FEATURES AND BENEFITS：
• 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 3 V
• Reverse-battery protection
• Solid-state reliability
• Small package sizes
DESCRIPTION
The A1220, A1221, A1222, and A1223 Hall-effect sensor ICs are extremely temperature-stable and stress-resistant devices especially suited for operation over extended temperature ranges to 150°C. Superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress. Each device includes on a single silicon chip a voltage regulator, Hallvoltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, and a short-circuit protected open-drain output to sink up to 25 mA. A south pole of sufficient strength turns the output on. A north pole of sufficient strength is necessary to turn the output off. An onboard regulator permits operation with supply voltages of 3 to 24 V. The advantage of operating down to 3 V is that the device can be used in 3 V applications or with additional
TYPICAL APPLICATIONS
Continued on next page...
• 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
Product Attributes
| TYPE | DESCRIPTION |
| Category | Sensors, Transducers |
| Magnetic Sensors - Switches (Solid State) | |
| Mfr | Allegro MicroSystems |
| Series | Automotive, AEC-Q100 |
| Package | Bulk |
| Part Status | Active |
| Function | Latch |
| Technology | Hall Effect |
| Polarization | South Pole |
| Sensing Range | 4mT Trip, -4mT Release |
| Test Condition | ·-40℃~150℃ |
| Voltage - Supply | 3V ~ 24V |
| Current - Supply (Max) | 4mA |
| Current - Output (Max) | 25mA |
| Output Type | Open Drain |
| Features | - |
| Operating Temperature | ·-40℃~150℃ |
| Mounting Type | Through Hole |
| Supplier Device Package | 3-SIP |
| Package / Case | 3-SSIP |
Chopper-Stabilized Precision Hall-Effect Latches
FEATURES AND BENEFITS：
• 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 3 V
• Reverse-battery protection
• Solid-state reliability
• Small package sizes
DESCRIPTION
The A1220, A1221, A1222, and A1223 Hall-effect sensor ICs are extremely temperature-stable and stress-resistant devices especially suited for operation over extended temperature ranges to 150°C. Superior high-temperature performance is made possible through dynamic offset cancellation, which reduces the residual offset voltage normally caused by device overmolding, temperature dependencies, and thermal stress. Each device includes on a single silicon chip a voltage regulator, Hallvoltage generator, small-signal amplifier, chopper stabilization, Schmitt trigger, and a short-circuit protected open-drain output to sink up to 25 mA. A south pole of sufficient strength turns the output on. A north pole of sufficient strength is necessary to turn the output off. An onboard regulator permits operation with supply voltages of 3 to 24 V. The advantage of operating down to 3 V is that the device can be used in 3 V applications or with additional
TYPICAL APPLICATIONS
Continued on next page...
• 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
