Product Overview
The Allegro ACS37010 and ACS37012 are fully integrated Hall effect-based current sensor ICs designed for accurate AC and DC current measurements. Housed in a compact 6-pin SOIC LZ package, these devices feature a low 0.68 m primary conductor resistance, minimizing power dissipation. They are factory-trimmed for high accuracy across their operating range, eliminating the need for customer programming. The sensors utilize differential sensing with two Hall plates to reject common-mode magnetic fields, ensuring robust performance. The ACS37010 offers a fast 1.3 s response time with an analog output and VREF pin for noisy environments, while the ACS37012 provides a fast logic alert fault output for overcurrent and short-circuit detection. Both devices offer 3500 VRMS of isolation and are AEC-Q100 Grade 0 automotive qualified.
Product Attributes
- Brand: Allegro MicroSystems
- Package Type: 6-pin SOIC LZ (Custom)
- Certifications: AEC-Q100 Grade 0, automotive qualified
- Compliance: RoHS-compliant and lead (Pb) free without the use of RoHS exemptions
- 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 Voltage (VRMS) | Operating Temperature | Internal Conductor Resistance (RIC) |
|---|---|---|---|---|---|---|---|---|---|
| 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 (Unidirectional) | 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 Characteristics | |||||||||
| Package Thermal Resistance (Junction to Ambient) | 19 C/W (on evaluation board) | ||||||||
| Withstand Strength (VISO) | 3500 VRMS | ||||||||
| Working Voltage for Basic Isolation (VWVBI) | 905 VRMS / 1280 VDC | ||||||||
| Working Voltage for Reinforced Isolation (VWVRI) | 507 VRMS / 717 VDC | ||||||||
| Clearance (DCL) | 4.1 mm | ||||||||
| Creepage (DCR) | 4.1 mm | ||||||||
| Distance Through Insulation (DTI) | 54 m | ||||||||
2510091532_ALLEGRO-ACS37012LLZATR-050B3_C25820812.pdf
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