A1220LLHLT-T Allegro Digital Hall Effect Latch Sensor IC (Open Drain Output, SOT 23 3, 1 Qty)

The A1220LLHLT-T is a digital Hall Effect magnetic sensor IC from Allegro MicroSystems, designed for magnetic field detection, position sensing, speed measurement and motor control applications. It features a latching digital output that changes state according to the polarity of the applied magnetic field, making it suitable for applications requiring reliable magnetic switching.

The A1220LLHLT-T features an open drain output and a compact SOT 23 3 surface mount package for space constrained PCB designs. Its magnetic latch operation makes it suitable for brushless DC motor commutation, rotary position detection, speed sensing and industrial automation systems. The device is designed for reliable operation in automotive and industrial environments.

Key Features -

• Allegro A1220LLHLT-T digital Hall Effect latch sensor

• Magnetic polarity sensitive latching operation

• Digital open drain output for external circuit interfacing

• Contactless magnetic field and position detection

• Compact SOT 23 3 surface mount package

• Suitable for brushless DC motor commutation

• Designed for industrial and automotive sensing applications

• Wide operating temperature range for demanding environments

Specifications -

• Brand: Allegro MicroSystems

• Part Number: A1220LLHLT-T

• Product Type: Digital Hall Effect Magnetic Sensor IC

• Sensor Technology: Hall Effect

• Switching Function: Magnetic Latch

• Output Type: Digital Open Drain

• Magnetic Detection: Bipolar Magnetic Field

• Operating Voltage: 3V to 24V DC

• Output Switching Frequency: Up to 800kHz

• Operating Temperature: Negative 40C to Positive 150C

• Number of Pins: 3

• Package Type: SOT 23 3

• Mounting Type: Surface Mount (SMD)

• Pack Quantity: 1 Qty (1 Piece)

Applications -

• Brushless DC motor commutation

• Motor speed sensing systems

• Rotary encoder and position detection circuits

• Contactless proximity sensing

• Industrial automation equipment

• Automotive electronic systems

• Consumer electronics and embedded control systems