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ACS71240LLCBTR-045B5 Breakout
CURRENT SENSOR HALL 45A 8-SOIC
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Hall effect current sensor IC for AC/DC current measurement up to 45A with integrated copper conductor path and chopper-stabilized Hall front end. Features differential sensing for external magnetic field rejection, integrated overcurrent fault comparator with 1.5µs response, and digital temperature compensation. Suitable for automotive, industrial, and communications applications requiring high accuracy in magnetically noisy environments.
Package: SOIC-8 (3.9×4.9mm) · 8 pins
Why does this need a breakout?
An 8-pin SOIC with 1.27mm pitch is too fine for breadboards and hand-soldering without a microscope. A breakout board routes these pins to standard 0.1" headers, enabling rapid prototyping and reliable connections for op-amps, transceivers, and small power MOSFETs without requiring reflow equipment.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Allegro MicroSystems |
| Part Number | ACS71240LLCBTR-045B5 |
| Package | SOIC-8 (3.9×4.9mm) |
| Pin Count | 8 |
| Current - Supply (Max) | 12mA |
| Frequency | 120kHz |
| Number of Channels | 1 |
| Output | Voltage |
| Sensor Type | Hall Effect, Open Loop |
| Voltage - Supply | 4.5V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x ACS71240LLCBTR-045B5 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