Datasheet ACS37002 (Allegro) - 2

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400 kHz, High Accuracy Current Sensor ACS37002 with Pin-Selectable Gains and Adjustable Overcurrent Fast Fault in SOICW-16 Package FEATURES AND BENEFITS (continued)
□ 4 adjustable gain levels for increased design flexibility □ Enabling measurement ranges from 10 to 133 A in both unidirectional and bidirectional modes • Low internal primary conductor resistance 0.85 mΩ (MA) and 1 mΩ (LA) for better power efficiency • UL-certified to 60950 standard, highly isolated compact SOICW-16 surface mount package (MA) □ 4.8 kVRMS rated isolation voltage □ 1097 VRMS / 1550 VDC basic isolation voltages □ 565 VRMS / 880 VDC reinforced isolation voltages • Wide operating temperature, –40°C to 150°C • Commercial qualified
SELECTION GUIDE Current Sensing Optimized Part Number Sensitivity [1] Nominal VCC Temp. Range Packing [2] Range, IPR (A) Sens (mV/A) (V) TA (°C) MA Package, 16-Pin SOICW
ACS37002LMACTR-050B5 ±33, ±40, ±50, ±66 60, 50, 40, 30 ACS37002LMACTR-066B5 ±66, ±80 ±100, ±133 30, 25, 20, 15 5 ACS37002LMACTR-050U5 33, 40, 50, 66 120, 100, 80, 60 ACS37002LMACTR-066U5 66, 80, 100, 133 60, 50, 40, 30 –40 to 150 [3] ACS37002LMACTR-050B3 ±33, ±40, ±50, ±66 39.6, 33, 26.4, 19.8 1000 pieces ACS37002LMACTR-066B3 ±66, ±80, ±100, ±133 19.8, 16.5, 13.2, 9.9 per 13-inch reel 3.3 ACS37002LMACTR-050U3 33, 40, 50, 66 79.2, 66, 52.8, 39.6 ACS37002LMACTR-066U3 66, 80, 100, 133 39.6, 33, 26.4, 19.8 ACS37002KMACTR-050B5 ±33, ±40, ±50, ±66 60, 50, 40, 30 5 –40 to 125 [4] ACS37002KMACTR-050B3 ±33, ±40, ±50, ±66 39.6, 33, 26.4, 19.8 3.3
LA Package [3], 16-Pin SOICW
ACS37002LLAATR-015B5 ±10, ±12, ±15, ±20 200,166.6,133.3,100 5 ACS37002LLAATR-025B5 ±25, ±30, ±37.5, ±50 80, 66.6, 53.3, 40 –40 to 150 1000 pieces ACS37002LLAATR-015B3 ±10, ±12, ±15, ±20 132, 110, 88, 66 per 13-inch reel 3.3 ACS37002LLAATR-025U3 +25, +30, +37.5, +50 105.6, 88, 70.4, 52.8 [1] Refer to the part specific performance characteristics sections for Gain_Sel configuration. [2] Contact Allegro for additional options. [3] Advanced information. LA package and LMA variation is not yet released. [4] The device performance is optimized from –40°C to 125°C; however, the device can still operate to an ambient temperature of 150°C. The device shares the same qualifications as the L temperature devices unless otherwise stated. 2 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com Document Outline Features and Benefits Description Packages Selection guide Absolute Maximum Ratings Isolation Characteristics MA Package Specific Performance LA Package Specific Performance Pinout Diagram and Terminal List Functional Block Diagram Common Electrical Characteristics Performance Characteristics Functional Description Power-On Reset Operation Power-On Power-Off Power-On Timing Power-On Reset (POR) Overvoltage and Undervoltage Detection Undervoltage Detection Voltage Thresholds (VUVD(H/L)) Overvoltage Detection Voltage Thresholds (VOVD(H/L)) Overvoltage/Undervoltage Detection Hysteresis (VOVDHys, VUVDHys) Overvoltage and Undervoltage Enable and Disable Time (tOVD(E/D), tUVD(E/D)) Supply Zener Clamp Voltages Absolute Maximum Ratings Forward and Reverse Supply Voltage Forward and Reverse Output Voltage Forward and Reverse Reference/Fault Voltage Output Source and Sink Current Definitions of Operating and PErformance Characteristics Zero Current Voltage Output (VIOUT(Q), QVO) QVO Temperature Drift (VQE) Reference Voltage (VREF) Reference Voltage Temperature Drift (VRE) Offset Voltage (VOE) Output Saturation Voltage (VSAT(HIGH/LOW)) Sensitivity (Sens) Sensitivity Error (Esens) Gain Selection Pins Full Scale (FS) Nonlinearity (ELIN) Total Output Error (ETOT) Power Supply Offset Error (VPS) Offset Power Supply Rejection Ratio (PSRRO) Power Supply Sensitivity Error (EPS) Sensitivity Power Supply Rejection Ratio (PSRRS) Fault Behavior Overcurrent Fault (OCF) Overcurrent Fault Operating Range/Point (IOCF-OR, IOCF-OP) Overcurrent Fault Hysteresis (IOCF-Hyst) Voltage Overcurrent Pin (VOC) OverCurrent Fault Error (EOCF) OverCurrent Fault Response Time (tOCF) OverCurrent Fault Reaction Time (tOCF-R) OverCurrent Fault Mask Time (tOCF-MASK) OverCurrent Fault Hold Time (tOCF-HOLD) OverCurrent Fault Persist OCF Disable Dynamic Response Parameters Propagation Time (tpd) Rise Time (tR) Response Time (tRESPONSE) Overshoot Settling Time Temperature Compensation Temperature Compensation Update Rate Application and Theory Application Circuits Theory and Functionality – VOC and OCF VOC Driven by Non-Inverting Buffered VREF Power Supply Decoupling Capacitor and Output Capacitive Loads Dynamically Change Gain in a System Thermal Performance Thermal Rise vs. Primary Current Evaluation Board Layout Package Outline Drawings MA Package LA Package