High Accuracy Current Sensor with FAULT or Reference Output in SOIC-6 Package
Product Overview
The ACS37010 and ACS37012 are fully integrated Hall effect-based current sensor ICs designed for accurate current sensing in a compact SOIC LZ package. Featuring a low 0.68 m primary conductor resistance for minimal power dissipation, these devices are factory-trimmed for high accuracy across their operating range, eliminating the need for customer programming. They offer robust isolation with 3500 VRMS withstand voltage and employ differential sensing to reject common-mode magnetic fields. The ACS37010 provides a fast analog output with a VREF pin for noisy environments, while the ACS37012 offers a logic alert FAULT output for overcurrent and short-circuit detection. These sensors are AEC-Q100 Grade 0 automotive qualified, making them suitable for demanding applications requiring precise and reliable current monitoring.
Product Attributes
- Brand: Allegro MicroSystems
- Package Type: Custom 6-Pin SOIC (Suffix LZ)
- Certifications: AEC-Q100 Grade 0, automotive qualified
- Compliance: RoHS-compliant, lead (Pb) free
- Lead Finish: 100% matte-tin-plated leadframes
Technical Specifications
| Feature | Specification | Details | ||||
|---|---|---|---|---|---|---|
| Operating Bandwidth | 450 kHz | -3 dB | ||||
| Response Time | 1.3 s | Typical | ||||
| Internal Conductor Resistance | 0.68 m | Typical | ||||
| Isolation Withstand Voltage | 3500 VRMS | Agency rated for 60 seconds per UL 62368-1 | ||||
| Basic Isolation Voltage | 840 VRMS / 1188 VDC | Maximum approved working voltage | ||||
| Reinforced Isolation Voltage | 420 VRMS / 594 VDC | Maximum approved working voltage | ||||
| Operating Temperature Range | -40C to 150C | Ambient Temperature (TA) | ||||
| Maximum Junction Temperature | 165C | TJ(max) | ||||
| Supply Voltage (VDD) | 3.0 V to 5.5 V | (3.3 V and 5 V variants) | ||||
| Supply Current (IDD) | 14-20 mA | Typical (depending on VDD) | ||||
| Rise Time (tR) | 1-2.5 s | Typical | ||||
| Propagation Delay (tPD) | 0.7-1.5 s | Typical | ||||
| Noise Density (ND) | 150-230 A/Hz | Typical (depending on VDD) | ||||
| Overcurrent Response Time (tOC_RESP) | 1.7-2.7 s | Typical (ACS37012 only) | ||||
| Part Number Suffix | LZ | Custom 6-Pin SOIC | ||||
| Model Variants | Current Sensing Range (IPR) | Sensitivity (mV/A) | VDD (V) | Pin 6 Function | Optimized Temperature Range (C) | Packing |
| ACS37010LLZATR-030B5 | 30 A | 66.7 | 5 | VREF | 40 to 150 | Tape and Reel, 3000 pieces per reel |
| ACS37010LLZATR-030B3 | 30 A | 44 | 3.3 | VREF | 40 to 150 | Tape and Reel |
| ACS37010LLZATR-050B5 | 50 A | 40 | 5 | VREF | 40 to 150 | Tape and Reel |
| ACS37010LLZATR-050B3 | 50 A | 26.4 | 3.3 | VREF | 40 to 150 | Tape and Reel |
| ACS37012LLZATR-030B5 | 30 A | 66.7 | 5 | FAULT | 40 to 150 | Tape and Reel |
| ACS37012LLZATR-030B3 | 30 A | 44 | 3.3 | FAULT | 40 to 150 | Tape and Reel |
| ACS37012LLZATR-050B5 | 50 A | 40 | 5 | FAULT | 40 to 150 | Tape and Reel |
| ACS37012LLZATR-050B3 | 50 A | 26.4 | 3.3 | FAULT | 40 to 150 | Tape and Reel |
2401220953_ALLEGRO-ACS37010LLZATR-050B3_C19761982.pdf
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