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A1220LLHLT-T Breakout
HALL EFFECT LATCH SWITCH SOT23W 3-24V
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Design a Custom BoardAbout This Component
Chopper-stabilized Hall-effect sensor IC that functions as a magnetic switch latch, outputting on with south pole and off with north pole. Features integrated voltage regulator (3-24V), 25mA open-drain output with short-circuit protection, and dynamic offset cancellation for superior temperature stability to 150°C. Automotive-qualified (AEC-Q100) for motor commutation, position sensing, and power actuation applications.
Package: SOT-23W · 3 pins
Why does this need a breakout?
SC-59's 0.95mm pin pitch and three-lead configuration make hand-soldering impractical and breadboard prototyping impossible. A breakout board converts these tiny SMD pads to standard headers, enabling quick integration of analog switches, hall-effect sensors, and low-voltage logic gates into development circuits without specialized soldering equipment.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Allegro MicroSystems |
| Part Number | A1220LLHLT-T |
| Package | SOT-23W |
| Pin Count | 3 |
| Current - Output (Max) | 25mA |
| Current - Supply (Max) | 4mA |
| Output Type | Open Drain |
| Voltage - Supply | 3V ~ 24V |
What's Included
BILL OF MATERIALS
- 1x A1220LLHLT-T soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS
WIDTH
< 0.9" (straddles breadboard)
PITCH
2.54mm standard
SOLDER
Lead-free, reflow assembled
FINISH
FR4, lead-free HASL