Datasheet ACS37800 (Allegro) - 10

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Isolated, Digital Output, Power Monitoring IC ACS37800 with Zero-Crossing Detection, Overcurrent and Overvoltage Flagging ACS37800KMAC-090B3 PERFORMANCE CHARACTERISTICS:
Valid through the full operating temperature range, TA = –40°C to 125°C, CBYPASS = 0.1 µF, and VCC = 3.3 V, unless otherwise specified
Characteristic Symbol Test Conditions Min. Typ. [1] Max. Unit GENERAL CHARACTERISTICS
Nominal Supply Voltage VCC(typ) – 3.3 – V
NOMINAL PERFORMANCE – CURRENT CHANNEL
Current Sensing Range IPR –90 – 90 A Sensitivity Sens(I) IPR(min) < IP < IPR(max) – 305.6 – LSB/A
NOMINAL PERFORMANCE – INPUT REFERRED FACTORY POWER (POWER SEEN BY THE DEVICE) [2]
Active Power Sensitivity SensPd_act – 1.03 – LSB/mW Imaginary Power Sensitivity SensPd_img – 2.05 – LSB/mVAR Apparent Power Sensitivity SensPd_app – 2.05 – LSB/mVA
TOTAL OUTPUT ERROR COMPONENTS [3] – CURRENT CHANNEL
Measured at I Sensitivity Error E P = IPR(max), TA = 25°C to 125°C – ±1 – % SENS(I) Measured at IP = IPR(max), TA = –40°C to 25°C – ±1.5 – % I Offset Error E P = 0 A, TA = 25°C to 125°C – ±180 – LSB O(I) IP = 0 A, TA = –40°C to 25°C – ±210 – LSB Measured at I Total Output Error E P = 45 A, TA = 25°C to 125°C – ±2 – % TOT(I) Measured at IP = 45 A, TA = –40°C to 25°C – ±2.6 – %
TOTAL OUTPUT ERROR COMPONENTS [3] – VOLTAGE CHANNEL
Measured at ΔVIN = ΔVINR(max), T Sensitivity Error E A = 25°C to 125°C – ±0.75 – % SENS(V) Measured at ΔVIN = ΔVINR(max), TA = –40°C to 25°C – ±0.75 – % ΔV Offset Error E IN = 0 mV, TA = 25°C to 125°C – ±55 – LSB O(V) ΔVIN = 0 mV, TA = –40°C to 25°C – ±55 – LSB Measured at ΔVIN = ΔVINR(max), T Total Output Error E A = 25°C to 125°C – ±1 – % TOT(V) Measured at ΔVIN = ΔVINR(max), TA = –40°C to 25°C – ±1 – %
ACCURACY PERFORMANCE – ACTIVE POWER
IP = 45 A, measured at ΔVIN = ΔVINR(max), T Total Output Error E A = 25°C to 125°C – ±1.3 – % TOT(P) IP = 45 A, measured at ΔVIN = ΔVINR(max), TA = –40°C to 25°C – ±2.1 – % [1] Typical values are mean ±3 sigma. [2] These sensitivity characteristics are referred to the inputs seen by the device, i.e. the voltage channel resistor divider must be accounted to determine the system sensi- tivies. [3] ETOT = ESENS + 100 x VOE/(Sens x IP) 10 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U.S.A. www.allegromicro.com Document Outline Features and Benefits Description Package Typical Application Selection Guide Absolute Maximum Ratings Isolation Characteristics ESD Ratings Thermal Characteristics Functional Block Diagram Pinout Diagram and Terminal List Electrical Characteristics 15B5 Performance Characteristics 30B3 Performance Characteristics 90B3 Performance Characteristics I2C Operating Characteristics SPI Operating Characteristics Theory of Operation Introduction Voltage and Current Measurements Overcurrent Measurement Path Trim Methods Power Calculations Operational Block Diagram Configurable Settings Configuring the DIO Pins (I2C Devices) Configuring the Device for AC Applications Device EEPROM Settings Voltage Measurement Current Measurement Configuring the Device for DC Applications Device EEPROM Settings Voltage Measurement Current Measurement RMS and Power Accuracy vs. Operation Point RMS and Power Output Error vs. Applied Input 15B5 IRMS and Power Error 30B3 IRMS and Power Error 90B3 IRMS and Power Error Digital Communication Communication Interfaces SPI Registers and EEPROM EEPROM Error Checking and Correction (ECC) I2C Slave Adressing EEPROM/Shadow Memory Map Register Details – EEPROM Volatile Memory Map Register Details - Volatile Application Information Thermal Rise vs. Primary Current ASEK37800 Evaluation Board Layout Recommended PCB Layout Package Outline Drawing