Product Overview
The ACS37010 and ACS37012 are fully integrated, high-accuracy current sensor ICs housed in a compact SOIC LZ package. These devices feature a very low 0.68 m primary conductor resistance, minimizing power dissipation and ideal for low-power applications. Factory-trimmed for high accuracy across the entire operating range, they eliminate the need for customer programming. The internal design provides high isolation and excellent magnetic coupling, with differential sensing to reject common-mode magnetic fields. The ACS37010 offers a fast 1.3 s response time analog output with a VREF pin for noisy environments, while the ACS37012 provides a fast logic alert FAULT output for overcurrent or short-circuit detection and system protection. Both devices offer 3500 VRMS of isolation and are AEC-Q100 Grade 0 automotive qualified. They are suitable for applications requiring precise current monitoring with high bandwidth (450 kHz) and fast response times.
Product Attributes
- Brand: Allegro MicroSystems
- Package Type: SOIC LZ (Custom 6-Pin)
- Certifications: AEC-Q100 Grade 0, automotive qualified
- Compliance: RoHS-compliant, lead (Pb) free
- Lead Finish: 100% matte-tin-plated leadframes
Technical Specifications
| Model | Current Sensing Range (IPR) | Sensitivity (mV/A) | Supply Voltage (VDD) | Quiescent Voltage Output (VQVO) | Bandwidth | Response Time | Isolation Withstand Voltage | Operating Temperature | Internal Conductor Resistance |
|---|---|---|---|---|---|---|---|---|---|
| ACS37010LLZATR-030B5 | 30 A | 66.7 mV/A | 5 V | 2.5 V | 450 kHz | 1.3 s | 3500 VRMS | 40C to 150C | 0.68 m |
| ACS37010LLZATR-030B3 | 30 A | 44 mV/A | 3.3 V | 1.65 V | 450 kHz | 1.3 s | 3500 VRMS | 40C to 150C | 0.68 m |
| ACS37010LLZATR-050B5 | 50 A | 40 mV/A | 5 V | 2.5 V | 450 kHz | 1.3 s | 3500 VRMS | 40C to 150C | 0.68 m |
| ACS37010LLZATR-050B3 | 50 A | 26.4 mV/A | 3.3 V | 1.65 V | 450 kHz | 1.3 s | 3500 VRMS | 40C to 150C | 0.68 m |
| ACS37012LLZATR-030B5 | 30 A | 66.7 mV/A | 5 V | 2.5 V | 450 kHz | 1.3 s | 3500 VRMS | 40C to 150C | 0.68 m |
| ACS37012LLZATR-030U5 | 30 A | 133.3 mV/A | 5 V | 0.5 V | 450 kHz | 1.3 s | 3500 VRMS | 40C to 150C | 0.68 m |
| ACS37012LLZATR-030B3 | 30 A | 44 mV/A | 3.3 V | 1.65 V | 450 kHz | 1.3 s | 3500 VRMS | 40C to 150C | 0.68 m |
| ACS37012LLZATR-050B5 | 50 A | 40 mV/A | 5 V | 2.5 V | 450 kHz | 1.3 s | 3500 VRMS | 40C to 150C | 0.68 m |
| ACS37012LLZATR-050B3 | 50 A | 26.4 mV/A | 3.3 V | 1.65 V | 450 kHz | 1.3 s | 3500 VRMS | 40C to 150C | 0.68 m |
| General | N/A | N/A | 4.5 V to 5.5 V (5V variant) 3 V to 3.6 V (3.3V variant) | N/A | 450 kHz | 1.3 s (Response Time) | 3500 VRMS (Withstand Strength) | 40C to 150C (Operating Ambient Temperature) | 0.68 m (Internal Conductor Resistance) |
2510091532_ALLEGRO-ACS37012LLZATR-030B3_C26551783.pdf
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