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ACS706ELC-05C Datasheet(PDF) 2 Page - Allegro MicroSystems |
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ACS706ELC-05C Datasheet(HTML) 2 Page - Allegro MicroSystems |
2 / 20 page ACS706ELC-05C 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 www.allegromicro.com ACS706ELC05C-DS, Rev. 1 Features and Benefits • Small footprint, low-profile SOIC8 package • 1.5 mΩ internal conductor resistance • Excellent replacement for sense resistors • 1600 VRMS minimum isolation voltage between pins 1-4 and 5-8 • 4.5 to 5.5 V, single supply operation • 50 kHz bandwidth • 133 mV/A output sensitivity and 15 A dynamic range • Output voltage proportional to ac and dc currents • Factory-trimmed for accuracy • Extremely stable output offset voltage • Near-zero magnetic hysteresis • Ratiometric output from supply voltage The Allegro ACS706 family of current sensors provides economical and precise solutions for current sensing in industrial, automotive, 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 precision, 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 at the factory. The output of the device has a positive slope (>VCC/2) 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 typically 1.5 mΩ, providing low power loss. The thickness of the copper conductor allows survival 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 ACS706 family of sensors to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques. The ACS706 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 flip-chip uses high- temperature Pb-based solder balls, currently exempt from RoHS. The device is fully calibrated prior to shipment from the factory. Use the following complete part number when ordering: Part Number Package ACS706ELC-05C SOIC8 surface mount TÜV America Certificate Number: U8V 04 12 54214 005 ABSOLUTE MAXIMUM RATINGS Supply Voltage, VCC ..........................................16 V Reverse Supply Voltage, VRCC ........................–16 V Output Voltage, VOUT ........................................16 V Reverse Output Voltage, VROUT......................–0.1 V Output Current Source, IOUT(Source) ................. 3 mA Output Current Sink, IOUT(Sink).......................10 mA Maximum Transient Sensed Current*, IR(max) ... 100 A Operating Temperature, Maximum Junction, TJ(max)....................... 165°C Storage Temperature, TS ......................–65 to 170°C *Junction Temperature, TJ < TJ(max). *100 total pulses, 250 ms duration each, applied at a rate of 1 pulse every 100 seconds. Nominal Operating Temperature, TA Range E............................................ –40 to 85ºC Overcurrent Transient Tolerance*, IP ................ 60 A Bidirectional 1.5 mΩ Hall Effect Based Linear Current Sensor with Voltage Isolation and 15 A Dynamic Range Package LC Pin 1: IP+ Pin 2: IP+ Pin 3: IP– Pin 4: IP– Pin 8: VCC Pin 7: VOUT Pin 6: N.C. Pin 5: GND Pins 6 and 7 are internally connected in shipping product. For compatibility with future devices, leave pin 6 floating. |
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