Product Overview
The ACS37010 and ACS37012 are fully integrated current sensor ICs designed for precise current measurement in a compact SOIC LZ package. Featuring a low 0.68 m internal conductor resistance for minimal power dissipation, these sensors 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 with two Hall plates to reject common-mode magnetic fields. The ACS37010 provides a fast 1.3 s response time analog output with a VREF pin for noisy environments, while the ACS37012 includes a fast logic alert fault output for overcurrent and short-circuit detection. These AEC-Q100 Grade 0 automotive-qualified devices are ideal for applications demanding high accuracy, fast response, and reliable isolation.
Product Attributes
- Brand: Allegro MicroSystems
- Package Type: Custom 6-Pin SOIC (Suffix LZ)
- Compliance: RoHS-compliant, lead (Pb) free without the use of RoHS exemptions
- Lead Finish: 100% matte-tin-plated leadframes
- Automotive Qualification: AEC-Q100 Grade 0
Technical Specifications
| Model | Current Sensing Range (IPR) | Sensitivity (mV/A) | Supply Voltage (VDD) | VQVO (V) | Pin 6 Function | Optimized Temperature Range (TA) | Bandwidth | Response Time | Isolation Withstand Voltage | Internal Conductor Resistance (RIC) |
|---|---|---|---|---|---|---|---|---|---|---|
| ACS37010LLZATR-030B5 | 30 A | 66.7 | 5 V | 2.5 | VREF | 40C to 150C | 450 kHz | 1.3 s | 3500 VRMS | 0.68 m |
| ACS37010LLZATR-030B3 | 30 A | 44 | 3.3 V | 1.65 | VREF | 40C to 150C | 450 kHz | 1.3 s | 3500 VRMS | 0.68 m |
| ACS37010LLZATR-050B5 | 50 A | 40 | 5 V | 2.5 | VREF | 40C to 150C | 450 kHz | 1.3 s | 3500 VRMS | 0.68 m |
| ACS37010LLZATR-050B3 | 50 A | 26.4 | 3.3 V | 1.65 | VREF | 40C to 150C | 450 kHz | 1.3 s | 3500 VRMS | 0.68 m |
| ACS37012LLZATR-030B5 | 30 A | 66.7 | 5 V | 2.5 | FAULT | 40C to 150C | 450 kHz | 1.3 s | 3500 VRMS | 0.68 m |
| ACS37012LLZATR-030B3 | 30 A | 44 | 3.3 V | 1.65 | FAULT | 40C to 150C | 450 kHz | 1.3 s | 3500 VRMS | 0.68 m |
| ACS37012LLZATR-050B5 | 50 A | 40 | 5 V | 2.5 | FAULT | 40C to 150C | 450 kHz | 1.3 s | 3500 VRMS | 0.68 m |
| ACS37012LLZATR-050B3 | 50 A | 26.4 | 3.3 V | 1.65 | FAULT | 40C to 150C | 450 kHz | 1.3 s | 3500 VRMS | 0.68 m |
| General Electrical Characteristics: | ||||||||||
| Supply Voltage (VDD) | 5 V variant: 4.5 to 5.5 V; 3.3 V variant: 3 to 3.6 V | |||||||||
| Supply Current (IDD) | 5 V variant: 16-20 mA; 3.3 V variant: 14-18 mA | |||||||||
| Operating Temperature Range (TA) | 40C to 150C | |||||||||
| Storage Temperature (TSTG) | 65C to 165C | |||||||||
| Maximum Junction Temperature (TJ(max)) | 165C | |||||||||
| Isolation Basic Working Voltage | 840 VRMS / 1188 VDC | |||||||||
| Isolation Reinforced Working Voltage | 420 VRMS / 594 VDC | |||||||||
2401220953_ALLEGRO-ACS37010LLZATR-050B5_C19761983.pdf
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