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ACS750SCA-100 Dataheets PDF



Part Number ACS750SCA-100
Manufacturers Allegro MicroSystems
Logo Allegro MicroSystems
Description Current Sensor
Datasheet ACS750SCA-100 DatasheetACS750SCA-100 Datasheet (PDF)

Current Sensor: ACS750xCA-100 The Allegro ACS75x 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, power supplies, and overcurrent fault protection. The device consists of a precision, low-offset linear Hall sensor circuit with a copper conduction path .

  ACS750SCA-100   ACS750SCA-100


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Current Sensor: ACS750xCA-100 The Allegro ACS75x 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, 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 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, chopperstabilized 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 terminal 4 to terminal 5), which is the path used for current sensing. The internal resistance of this conductive path is typically 130 µΩ, 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 1 through 3). This allows the ACS75x family of sensors to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques. The device is fully calibrated prior to shipment from the factory. The ACS75x family is lead-free. All leads are coated with 100% matte tin, and there is no lead inside the package. The heavy gauge leadframe is made of oxygen-free copper. www.DataSheet4U.com 4 5 1 2 3 Pin 1: VCC Pin 2: Gnd Pin 3: Output Terminal 4: Ip+ Terminal 5: Ip- ABSOLUTE MAXIMUM RATINGS Operating Temperature S ..................................................... –20 to +85ºC E ..................................................... –40 to +85ºC Supply Voltage, Vcc........................................... 16 V Reverse Supply Voltage, VRCC ........................ –16 V Output Voltage ................................................... 16 V Reverse Output Voltage, VROUT...................... –0.1 V Output Current Source ..................................... 3 mA Output Current Sink........................................10 mA Maximum Storage Temperature........... –65 to 170°C Maximum Junction Temperature .................... 165°C Features and Benefits • • • • • • • • • • • Monolithic Hall IC for high reliability Single +5 V supply 3 kVRMS isolation voltage between terminals 4/5 and pins 1/2/3 Lead-free Automotive temperature range available End-of-line factory-trimmed for gain and offset Ultra-low power loss: 130 µΩ internal conductor resistance Ratiometric output from supply voltage Extremely stable output offset voltage Small package size, with easy mounting capability Output proportional to ac and dc currents Always order by complete part number: ACS750SCA-100 ACS750ECA-100 Applications TÜV America Certificate Number: U8V 04 11 54214 002 • • • • • Industrial systems Motor control Power conversion Battery monitors Automotive systems ACS750100-DS Rev. 7 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Current Sensor: ACS750xCA-100 Functional Block Diagram +5 V IP– Terminal 5 VCC Pin 1 Voltage Regulator To all subcircuits Dynamic Offset Cancellation Amp Filter Out VOUT Pin 3 0.1 µF Gain Temperature Coefficient Trim Control Offset IP+ Terminal 4 GND Pin 2 2 ACS750100-DS Rev. 7 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Current Sensor: ACS750xCA-100 ELECTRICAL CHARACTERISTICS, over temperature unless otherwise stated Characteristic Symbol Test Conditions Min. Primary Sensed Current IP –100 Supply Voltage VCC 4.5 Supply Current ICC VCC = 5.0 V, output open – IOUT = 1.2 mA – Output Resistance ROUT VOUT to GND – Output Capacitance Load CLOAD Output Resistive Load RLOAD VOUT to GND 4.7 IP = ±100A, TA = +25°C – Primary Conductor Resistance RPRIMARY Pins 1-3 and 4-5, 60 Hz, 1 minute 3.0 Isolation Voltage VISO PERFORMANCE CHARACTERISTICS, -20°C to +85°C, VCC = 5 V unless otherwise specified Propagation time tPROP IP = ±50 A, TA = +25°C – – Response time tRESPONSE IP = ±50 A, TA = +25°C Rise time Frequency Bandwidth tr f IP = ±50 A, TA = +25°C – –3 dB, TA = 25°C – Over full range of IP , TA = 25°C 18.75 Sensitivity Sens Over full range of IP 17.5 Peak-to-peak, TA = 25°C – Noise VNOISE External filter BW = 24 kHz Nonlinearity ELIN Over full range of IP – Symmetry ESYM Over full range of IP 97 Zero Current Output Voltage VOUT(Q) I = 0 A, TA = 25°C – I = 0 A, TA = 25°C –40 Electrical Offset Voltage VOE (Magnetic error not included) I=0A –50 Magnetic.


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