Product Overview
The ACS37002 is a fully integrated Hall-effect current sensor designed for high-accuracy current measurement across its operating range without the need for customer programming. It features differential sensing to reject common-mode magnetic fields and offers robust, externally configurable functional features. With a high operating bandwidth of 400 kHz and a fast response time, it is suitable for fast control loops and high-speed current monitoring. The sensor is available in SOICW-16 packages (MA and LA) with varying isolation and noise optimization. It includes pin-selectable gain settings for flexible current range configuration and a fast overcurrent fault output for system protection. The device is RoHS compliant and lead-free.
Product Attributes
- Brand: Allegro MicroSystems
- Package Type: SOICW-16
- Certifications: UL 62368-1:2014 (ed. 2) (MA package)
- AEC-Q100 Grade 0, automotive qualified
- Compliance: RoHS compliant, lead (Pb) free
Technical Specifications
| Model | Current Sensing Range (IPR) | Sensitivity (mV/A) | Nominal VCC (V) | Optimized Temp. Range (TA) | Package | Dielectric Withstand Voltage (VRMS) | Conductor Resistance (m) | Bandwidth | Response Time (typical) |
|---|---|---|---|---|---|---|---|---|---|
| ACS37002LMABTR-050B5-M | 33, 40, 50, 66 A | 60, 50, 40, 30 mV/A | 5 V | 40 to 150 C | MA | 3125 | 0.85 | 400 kHz | 1.1 s |
| ACS37002LMABTR-066B5-M | 66, 80, 100, 133 A | 30, 25, 20, 15 mV/A | 5 V | 40 to 150 C | MA | 3125 | 0.85 | 400 kHz | 1.1 s |
| ACS37002LMABTR-050U5-M | 33, 40, 50, 66 A | 120, 100, 80, 60 mV/A | 5 V | 40 to 150 C | MA | 3125 | 0.85 | 400 kHz | 1.1 s |
| ACS37002LMABTR-066U5-M | 66, 80, 100, 133 A | 60, 50, 40, 30 mV/A | 5 V | 40 to 150 C | MA | 3125 | 0.85 | 400 kHz | 1.1 s |
| ACS37002LMABTR-050B3 | 33, 40, 50, 66 A | 39.6, 33, 26.4, 19.8 mV/A | 3.3 V | 40 to 150 C | MA | 3125 | 0.85 | 400 kHz | 1.1 s |
| 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 | 3125 | 0.85 | 400 kHz | 1.1 s |
| ACS37002LMABTR-050U3 | 33, 40, 50, 66 A | 79.2, 66, 52.8, 39.6 mV/A | 3.3 V | 40 to 150 C | MA | 3125 | 0.85 | 400 kHz | 1.1 s |
| ACS37002LMABTR-066U3 | 66, 80, 100, 133 A | 39.6, 33, 26.4, 19.8 mV/A | 3.3 V | 40 to 150 C | MA | 3125 | 0.85 | 400 kHz | 1.1 s |
| ACS37002KMABTR-050B5-M | 33, 40, 50, 66 A | 60, 50, 40, 30 mV/A | 5 V | 40 to 125 C | MA | 3125 | 0.85 | 400 kHz | 1.1 s |
| ACS37002KMABTR-050B3 | 33, 40, 50, 66 A | 39.6, 33, 26.4, 19.8 mV/A | 3.3 V | 40 to 125 C | MA | 3125 | 0.85 | 400 kHz | 1.1 s |
| ACS37002LLAATR-015B5 | 10, 12, 15, 20 A | 200, 166.6, 133.3, 100 mV/A | 5 V | 40 to 150 C | LA | 2250 | 1.0 | 400 kHz | 1.1 s |
| ACS37002LLAATR-025B5 | 25, 30, 37.5, 50 A | 80, 66.6, 53.3, 40 mV/A | 5 V | 40 to 150 C | LA | 2250 | 1.0 | 400 kHz | 1.1 s |
| ACS37002LLAATR-015B3 | 10, 12, 15, 20 A | 132, 110, 88, 66 mV/A | 3.3 V | 40 to 150 C | LA | 2250 | 1.0 | 400 kHz | 1.1 s |
| 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 | 2250 | 1.0 | 400 kHz | 1.1 s |
| Common Electrical Characteristics | |||||||||
| Supply Voltage (VCC) | 5 V or 3.3 V | ||||||||
| Supply Current (ICC) | 13-18 mA (5V), 12-15 mA (3.3V) | ||||||||
| Primary Conductor Resistance (RIP) | 0.85 m (MA), 1 m (LA) | ||||||||
| Operating Ambient Temperature (TA) | 40 to 150 C | ||||||||
| Storage Temperature (Tstg) | 65 to 165 C | ||||||||
| Maximum Junction Temperature (TJ(max)) | 165 C | ||||||||
| Bandwidth (BW) | 400 kHz | ||||||||
| Response Time (tRESPONSE) | 1.1 s (typical) | ||||||||
| Overcurrent Fault Response Time (tOCF) | 1 s (typical) | ||||||||
| Isolation (MA Package) | 3125 VRMS Dielectric Withstand Voltage | ||||||||
| Isolation (LA Package) | 2250 VRMS Dielectric Withstand Voltage | ||||||||
2412111218_ALLEGRO-ACS37002LMABTR-050U5_C3684286.pdf
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