Approximate Scale 1:1 Application 1. The ACS713 outputs an analog signal, VOUT . that varies linearly with the unidirectional DC primary sensed current, IP , within the range specified. CF is recommended for noise management, with values that depend on the application. ACS713 Description The Allegro ACS713 provides economical and precise solutions for DC current sensing in industrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection. The device consists of a precise, low-offset, linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer. A precise, proportional voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy after packaging. The output of the device has a positive slope (VIOUT(Q) when an increasing current flows through the primary copper conduction path (from pins 1 and 2, to pins 3 and 4), which is the path used for current sensing. The internal resistance of this conductive path is 1.2 m typical, providing low power loss. The thickness of the copper conductor allows survival ACS713-DS, Rev. 4 Fully Integrated, Hall Effect-Based Linear Current Sensor with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor Continued on the next page Package: 8 Lead SOIC (suffix LC) IP+ IP+ IP IP5 GND 2 4 1 3 ACS713 7 8 VIOUT 6 FILTER VCC IP +5 V VOUT CF CBYP 0.1 F Features and Benefits Low-noise analog signal path Device bandwidth is set via the new FILTER pin 5 s output rise time in response to step input current 80 kHz bandwidth Total output error 1.5% at TA = 25C Small footprint, low-profile SOIC8 package 1.2 m internal conductor resistance 2.1 kVRMS minimum isolation voltage from pins 1-4 to pins 5-8 5.0 V, single supply operation 133 to 185 mV/A output sensitivity Output voltage proportional to DC currents Factory-trimmed for accuracy Extremely stable output offset voltage Nearly zero magnetic hysteresis Ratiometric output from supply voltage Typical Application TV America Certificate Number: U8V 06 05 54214 010 Fully Integrated, Hall Effect-Based Linear Current Sensor with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor ACS713 2 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com Absolute Maximum Ratings CharacteristicSymbolNotesRatingUnits Supply Voltage VCC8V Reverse Supply VoltageVRCC0.1V Output VoltageVIOUT8V Reverse Output VoltageVRIOUT0.1V Reinforced Isolation VoltageVISO Pins 1-4 and 5-8; 60 Hz, 1 minute, TA=25C2100V Voltage applied to leadframe (Ip+ pins), based on IEC 60950 184Vpeak Basic Isolation VoltageVISO(bsc) Pins 1-4 and 5-8; 60 Hz, 1 minute, TA=25C1500V Voltage applied to leadframe (Ip+ pins), based on IEC 60950 354Vpeak Output Current Source IOUT(Source) 3mA Output Current Sink IOUT(Sink)10mA Overcurrent Transient ToleranceIP1 pulse, 100 ms100A Nominal Operating Ambient TemperatureTARange E40 to 85C Maximum Junction TemperatureTJ(max)165C Storage TemperatureTstg65 to 170C Selection Guide Part NumberPacking* TA (C) Optimized Range, IP (A) Sensitivity, Sens (Typ) (mV/A) ACS713ELCTR-20A-TTape and reel, 3000 pieces/reel40 to 850 to 20185 ACS713ELCTR-30A-TTape and reel, 3000 pieces/reel40 to 850 to 30133 *Contact Allegro for additional packing options. of the device at up to 5 overcurrent conditions. The terminals of the conductive path are electrically isolated from the sensor leads (pins 5 through 8). This allows the ACS713 current sensor to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques. The ACS713 is provided in a small, surface mount SOIC8 package. The leadframe is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes. Internally, the device is Pb-free, except for flip-chip high-temperature Pb-based solder balls, currently exempt from RoHS. The device is fully calibrated prior to shipment from the factory. Description (continued) ParameterSpecification Fire and Electric Shock CAN/CSA-C22.2 No. 60950-1-03 UL 60950-1:2003 EN 60950-1:2001 Fully Integrated, Hall Effect-Based Linear Current Sensor with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor ACS713 3 Allegro MicroSystems, Inc. 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com VCC (Pin 8) (Pin 7) VIOU T GND (Pin 5) F