HAL1002UT Programmable Hall Effect Switch IC

HAL1002UT (often marked as HAL1002UT‑A)Brand: TDK‑Micronas (Germany)Full Name: Programmable Hall SwitchPackage: TO‑92UT (3‑pin Through-hole)

2. Core Function

It is a high-precision, programmable Hall effect switch IC, adopted for non-contact detection of magnetic field and magnet position, with digital switching signal output (high/low level).

✅ Dual programmable switching points: BON (Operate point) and BOFF (Release point) are customizable, range: -150 mT ~ +150 mT

✅ Configurable operating modes: Unipolar / Latch, N-pole / S-pole sensitivity, normal/inverted output

✅ Programmable temperature compensation: Compatible with various magnet materials, stable switching point from -40℃ to +150℃

✅ Push-pull output: Directly drives MCU and LED without pull-up resistor

3. Application Scope

1) Automotive Electronics (Main Application, AEC‑Q100 Qualified)

Window & door position detection (limit positioning)Gear shift mechanism, brake / clutch pedal position detectionMotor commutation and speed detection (BLDC motor)Fuel tank liquid level and gearbox gear position monitoring

2) Industrial Control

Equipment limit switch & origin detection (replaces mechanical switches with longer service life)Valve position and cylinder stroke detectionCurrent monitoring (electronic fuse)Encoder, speed and counting module

3) Home Appliances & Consumer Electronics

Magnetic detection for smart locks and cabinetsSpeed & position detection of sports equipment (treadmills, exercise bikes)Flip/slide cover detection for small home appliances (rice cookers, sweeping robots)

4. Electrical Parameters

Operating Voltage: 4.5 V ~ 8.5 V (Typical 5 V)Operating Current: ≈7 mATemperature Range: -40℃ ~ +150℃ (Automotive Grade)Output Type: Push-pull, Max 1.2 mAESD Protection: >7 kV (High anti-static performance)

5. Selection Summary

The HAL1002UT is an automotive-grade programmable Hall switch with high stability and wide temperature resistance.It is widely used in automotive, industrial and high-end home appliance scenarios that require high precision, high temperature resistance and long service life for non-contact switching.It can perfectly replace traditional mechanical switches and ordinary Hall sensors (e.g. A3144), effectively solving poor consistency, temperature drift and short service life issues.