Datasheet ACS37002 (Allegro) - 4

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400 kHz, High Accuracy Current Sensor ACS37002 with Pin-Selectable Gains and Adjustable Overcurrent Fast Fault in SOICW-16 Package ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Notes Rating Unit
Forward Supply Voltage VCC 6.5 V Reverse Supply Voltage VRCC –0.5 V Forward Output Voltage VOUT Applies to VIOUT, VOCF, and VREF (VCC + 0.7) ≤ 6.5 V Reverse Output Voltage VROUT Applies to VIOUT, VOCF, and VREF –0.5 V Forward Input Voltage VOI Applies to GAIN_SEL0, GAIN_SEL1, and VOC (VCC + 0.7) ≤ 6.5 V Reverse Input Voltage VRI Applies to GAIN_SEL0, GAIN_SEL1, and VOC –0.5 V Operating Ambient Temperature TA –40 to 150 °C Storage Temperature Tstg –65 to 165 °C Maximum Junction Temperature TJ(max) 165 °C
ISOLATION CHARACTERISTICS Characteristic Symbol Notes Rating Unit
Surge Voltage VSURGE 1.2/50 µs to IEC 61000-4-5 10 kV Surge Current [1] ISURGE 8/20 µs to IEC 61000-4-5 13 kA Comparative Track Index CTI Material Group II 400 to 599 V
MA PACKAGE SPECIFIC PERFORMANCE Characteristic Symbol Notes Rating Unit
Distance Through Insulation DTI Minimum internal distance through insulation 90 µm Agency type-tested for 60 seconds per UL 60950-1 (edition 2). Dielectric Strength Test Voltage VISO Production tested at 3000 VRMS for 1 second in accordance with 4800 VRMS UL 60950-1. 1550 V Working Voltage for Basic Isolation [1] V Maximum approved working voltage for basic (single) isolation PK or VDC WVBI according to UL 60950-1 (edition 2) 1097 VRMS Working Voltage for Reinforced Maximum approved working voltage for reinforced isolation 800 VPK or VDC Isolation [1] VWVRI according to UL 60950-1 (edition 2) 565 VRMS Clearance [1] Dcl Minimum distance through air from IP leads to signal leads 7.5 mm Creepage [1] Dcr Minimum distance along package body from IP leads to signal leads 7.9 mm
LA PACKAGE SPECIFIC PERFORMANCE Characteristic Symbol Notes Rating Unit
Distance Through Insulation DTI Minimum internal distance through insulation 45 µm Agency type-tested for 60 seconds per UL 60950-1 (edition 2). Dielectric Strength Test Voltage VISO Production tested at 3000 VRMS for 1 second in accordance with 3600 VRMS UL 60950-1. 870 V Working Voltage for Basic Isolation [1] V Maximum approved working voltage for basic (single) isolation PK or VDC WVBI according to UL 60950-1 (edition 2) 616 VRMS Clearance [1] Dcl Minimum distance through air from IP leads to signal leads 7.5 mm Creepage [1] Dcr Minimum distance along package body from IP leads to signal leads 7.5 mm [1] Certification pending. 4 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