ACS714 Allegro MicroSystems, Inc., ACS714 Datasheet
ACS714
Available stocks
Related parts for ACS714
ACS714 Summary of contents
Page 1
... FILTER IP– IP– GND Application 1. The ACS714 outputs an analog signal, V that varies linearly with the uni- or bi-directional primary sensed current within the range specified recommended for noise management, with values that depend on the application. ACS714 ® ...
Page 2
... The terminals of the conductive path are electrically isolated from the sensor leads (pins 5 through 8). This allows the ACS714 current sensor to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques. ...
Page 3
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor VCC (Pin 8) Hall Current Drive IP+ Sense Temperature (Pin 1) IP+ (Pin 2) IP− (Pin 3) IP− (Pin 4) Terminal List Table Number 1 and 2 3 and 4 ...
Page 4
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor COMMON OPERATING CHARACTERISTICS Characteristic Symbol ELECTRICAL CHARACTERISTICS Supply Voltage V CC Supply Current I CC Output Capacitance Load C LOAD Output Resistive Load R LOAD Primary Conductor Resistance ...
Page 5
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor x05B PERFORMANCE CHARACTERISTICS over Range E: T Characteristic Symbol Optimized Accuracy Range I P Sensitivity Sens Noise V NOISE(PP) ∆I Zero Current Output Slope OUT(Q) ∆Sens ...
Page 6
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor x20A PERFORMANCE CHARACTERISTICS over Range E: T Characteristic Symbol Optimized Accuracy Range I P Sensitivity Sens Noise V NOISE(PP) ∆I Zero Current Output Slope OUT(Q) ∆Sens ...
Page 7
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor x30A PERFORMANCE CHARACTERISTICS over Range E: T Characteristic Symbol Optimized Accuracy Range I P Sensitivity Sens Noise V NOISE(PP) ∆I Zero Current Output Slope OUT(Q) ∆Sens ...
Page 8
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 Mean Supply Current versus Ambient Temperature 10.30 10.25 10.20 10.15 10. 10.05 CC 10.00 9.95 9.90 9.85 9.80 9.75 -50 - (°C) A Magnetic Offset versus Ambient Temperature 0 –0.5 –1.0 –1.5 –2 –2.5 After excursion –3.0 –3.5 – ...
Page 9
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor Mean Supply Current versus Ambient Temperature 9.7 9.6 9 9.4 CC 9.3 9.2 9.1 -50 - (°C) A Magnetic Offset versus Ambient Temperature 0 –0.5 –1.0 –1.5 –2.0 –2 ...
Page 10
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor Mean Supply Current versus Ambient Temperature 9.6 9.5 9 9.3 CC 9.2 9.1 9.0 8.9 -50 - (°C) A Magnetic Offset versus Ambient Temperature 0 –0.5 –1.0 –1.5 –2.0 –2 ...
Page 11
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor Definitions of Accuracy Characteristics Sensitivity (Sens). The change in sensor output in response change through the primary conductor. The sensitivity is the product of the magnetic circuit sensitivity ( and the linear IC amplifier gain (mV/G) ...
Page 12
... Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor ACS714 with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor Definitions of Dynamic Response Characteristics Power-On Time (t ). When the supply is ramped to its operat- PO ing voltage, the device requires a finite time to power its internal components before responding to an input magnetic field. ...
Page 13
... D1 I LT1178 P 1N914 0.1 μF Application 3. This configuration increases gain to 610 mV/A (tested using the ACS714ELC-05A). D1 1N4448W A-to-D Converter C1 Application Overcurrent Fault Latch. Fault threshold set by R1 and R2. This circuit latches an overcurrent fault and holds it until the 5 V rail is powered down. Regulator ...
Page 14
... With this circuit architecture, users can implement a simple (see F RC filter via the addition of a capacitor, C from the FILTER pin to ground. The buffer amplifier inside of the ACS714 (located after the internal resistor and FILTER pin ⎞ connection) eliminates the attenuation caused by the resistive . ⎟ ...
Page 15
... SEATING PLANE 1.75 MAX 1.27 0. ACS714T RLCPPP L...L YYWW For the latest version of this document, visit our website: www.allegromicro.com 4º 0.21 0.84 0.25 SEATING PLANE GAUGE PLANE All dimensions nominal, not for tooling use (reference JEDEC MS-012 AA) Dimensions in millimeters A Terminal #1 mark area ...