Fast response current sensor ALLEGRO ACS37002LMABTR-066B3 with adjustable fault threshold and trimmed measurement accuracy
Product Overview
The ACS37002 is a fully integrated Hall-effect current sensor designed for high-accuracy current monitoring. It features factory trimming for precise measurements across its operating range, eliminating the need for customer programming. Differential sensing effectively cancels out common-mode magnetic fields. The device offers externally configurable functional features, including four adjustable sensitivity levels via two logic gain selection pins. A fast overcurrent fault output provides system protection with a threshold adjustable via an analog input. Available in SOICW-16 packages (MA and LA), the ACS37002 supports operating bandwidths up to 400 kHz and is suitable for applications requiring fast control loops or high-speed current monitoring.
Product Attributes
- Brand: Allegro MicroSystems
- Package Type: SOICW-16
- Certifications: UL 62368-1:2014 (ed. 2) certification (MA package)
- Compliance: RoHS compliant, lead (Pb) free
- Automotive Qualification: AEC-Q100 Grade 0
Technical Specifications
| Model | Current Sensing Range (IPR) | Sensitivity (mV/A) | Nominal VCC (V) | Optimized Temp. Range (TA) | Package |
|---|---|---|---|---|---|
| ACS37002LMABTR-050B5-M | 33, 40, 50, 66 A | 60, 50, 40, 30 mV/A | 5 V | 40 to 150 C | MA |
| ACS37002LMABTR-066B5-M | 66, 80, 100, 133 A | 30, 25, 20, 15 mV/A | 5 V | 40 to 150 C | MA |
| ACS37002LMABTR-050U5-M | 33, 40, 50, 66 A | 120, 100, 80, 60 mV/A | 5 V | 40 to 150 C | MA |
| ACS37002LMABTR-066U5-M | 66, 80, 100, 133 A | 60, 50, 40, 30 mV/A | 5 V | 40 to 150 C | MA |
| ACS37002LMABTR-050B3 | 33, 40, 50, 66 A | 39.6, 33, 26.4, 19.8 mV/A | 3.3 V | 40 to 150 C | MA |
| ACS37002LMABTR-066B3 | 66, 80, 100, 133 A | 19.8, 16.5, 13.2, 9.9 mV/A | 3.3 V | 40 to 150 C | MA |
| ACS37002LMABTR-050U3 | 33, 40, 50, 66 A | 79.2, 66, 52.8, 39.6 mV/A | 3.3 V | 40 to 150 C | MA |
| ACS37002LMABTR-066U3 | 66, 80, 100, 133 A | 39.6, 33, 26.4, 19.8 mV/A | 3.3 V | 40 to 150 C | MA |
| ACS37002KMABTR-050B5-M | 33, 40, 50, 66 A | 60, 50, 40, 30 mV/A | 5 V | 40 to 125 C | MA |
| ACS37002KMABTR-050B3 | 33, 40, 50, 66 A | 39.6, 33, 26.4, 19.8 mV/A | 3.3 V | 40 to 125 C | MA |
| ACS37002LLAATR-015B5 | 10, 12, 15, 20 A | 200, 166.6, 133.3, 100 mV/A | 5 V | 40 to 150 C | LA |
| ACS37002LLAATR-025B5 | 25, 30, 37.5, 50 A | 80, 66.6, 53.3, 40 mV/A | 5 V | 40 to 150 C | LA |
| ACS37002LLAATR-015B3 | 10, 12, 15, 20 A | 132, 110, 88, 66 mV/A | 3.3 V | 40 to 150 C | LA |
| ACS37002LLAATR-025U3 | 25, 30, 37.5, 50 A | 105.6, 88, 70.4, 52.8 mV/A | 3.3 V | 40 to 150 C | LA |
| General Specifications | |||||
| Operating Bandwidth | 400 kHz | ||||
| Response Time (typical) | 1.1 s | ||||
| Sensitivity Error (max, K series) | 1% over temperature | ||||
| Offset Voltage (max over temperature) | 8 mV | ||||
| Conductor Resistance (MA) | 0.85 m | ||||
| Conductor Resistance (LA) | 1 m | ||||
| Dielectric Withstand Voltage (MA) | 3125 VRMS | ||||
| Dielectric Withstand Voltage (LA) | 2250 VRMS | ||||
| Operating Temperature Range | 40C to 150C | ||||
| Supply Voltage (VCC) | 3.15 V to 5.5 V | ||||
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