ACS709LLFTR-35BB-T Allegro Microsystems Inc, ACS709LLFTR-35BB-T Datasheet
ACS709LLFTR-35BB-T
Specifications of ACS709LLFTR-35BB-T
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ACS709LLFTR-35BB-T Summary of contents
Page 1
... IC linearly tracks the magnetic field generated by the applied current. The accuracy of the ACS709 is maximized with this patented packaging configuration because the Hall element is situated in extremely close proximity to the current to be measured. High level immunity to current conductor dV/dt and stray electric fields, offered by Allegro proprietary integrated shield technology, guarantees low output ripple and low offset drift in high-side applications ...
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... The internal resistance of the copper path used for current sensing is typically 1.1 mΩ, for low power loss. Also, the current conduction path is electrically isolated from the low voltage device inputs and Selection Guide I P(LIN) Part Number (A) ACS709LLFTR-35BB-T 75 ACS709LLFTR-20BB-T 37.5 *Contact Allegro for packing options. Absolute Maximum Ratings Characteristic Supply Voltage ...
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... VCC Supply voltage. Overcurrent Input pin. Analog input voltage on this pin sets the overcurrent fault 21 VOC threshold. FAULT_EN Enables overcurrent faulting when high. Resets ¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ when low Thermally Enhanced Package D Q CLK R POR ...
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... FILTER pin NCOMP Switchpoint in V safe operating area assumes NCOMP sink current at ¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ pin ¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ FEI In Thermally Enhanced Package = 5 V, unless otherwise specified CC Min. Typ. 3 – ...
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... Fault Enable Delay is designed to avoid false tripping of an Overcurrent (OC) fault at power-up μs (typical) delay will always be needed, every time FAULT_EN is raised from low to high, before the device is ready for responding to any overcurrent event. High Bandwidth, Fast Fault Response Current Sensor IC (continued) Valid – ...
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... See Characteristic Performance Data graphs for parameter distribution over ambient temperature range. 3 This parameter can drift by as much as 1.75% over lifetime of the product. 4 This parameter can drift by as much as 2.5% over lifetime of the product. High Bandwidth, Fast Fault Response Current Sensor Range L, valid – 40°C to 150° ...
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... Please refer to product FAQs R θJA page on Allegro web site for detailed information on ACS709 demo board. Tested with current and based on ACS709 demo board in 1 cu. ft. of still air. Please refer to product FAQs R TθJA page on Allegro web site for detailed information on ACS709 demo board ...
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... Capacitance (nF) High Bandwidth, Fast Fault Response Current Sensor IC Characteristic Performance Capacitor connected between FILTER pin and GND 0 Capacitance (nF) ACS709 Noise versus External Capacitor Value, C Capacitor connected between FILTER pin and GND = 5 V 900 800 ...
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... T A High Bandwidth, Fast Fault Response Current Sensor IC Characteristic Performance Data Data taken using the ACS709-20BB, V Accuracy Data 58.0 57.5 57.0 56.5 56.0 55.5 55.0 75 100 125 150 –50 (°C) 100.8 100 ...
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... T A Nonlinearity versus Ambient Temperature 0.30 0.20 0.10 0 -0.10 -0.20 -0.30 –50 - High Bandwidth, Fast Fault Response Current Sensor IC Characteristic Performance Data Data taken using the ACS709-35BB, V Accuracy Data 29.0 28.8 28.6 28.4 28.2 28.0 27.8 27.6 27.4 75 100 125 150 – ...
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... CC 0 – 0. Sens CC – 0 Sens CC Example: For ACS709LLFTR-35BB-T, if required overcurrent fault switchpoint and V required V can be calculated as follows: OC High Bandwidth, Fast Fault Response Current Sensor IC Setting Overcurrent Fault Switchpoint | Ioc | is the overcurrent fault switchpoint for a bi- directional (AC) current, which means a bi-directional device will have two symmetrical overcurrent fault ...
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... This figure shows different fault set/reset scenarios and how they relate to the voltages on the ¯ F ¯ ¯ A ¯ ¯ U ¯ ¯ L ¯ ¯ T ¯ pin, FAULT_EN pin, and the internal Overcurrent (OC) Fault node, which is invisible to the customer. ...
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... Allegro patented a Chopper Stabiliza- tion technique that nearly eliminates Hall IC output drift induced by temperature or package stress effects. This offset reduction Hall Element High Bandwidth, Fast Fault Response Current Sensor IC technique is based on a signal modulation-demodulation process. OC Modulation is used to separate the undesired dc offset signal from the magnetically induced signal in the frequency domain ...
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... Allegro. High Bandwidth, Fast Fault Response Current Sensor IC Accuracy is divided into four areas: 25°C. Accuracy of sensing zero current flow at 25°C, without the effects of temperature. over Δ temperature. Accuracy of sensing zero current flow including temperature effects. ...
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... The time interval between a) when the device r reaches 10% of its full scale value, and b) when it reaches 90% of its full scale value. The rise time to a step response is used to derive the bandwidth of the current sensor IC, in which ƒ(–3 dB Both t and t ...
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... The in for ma tion in clud ed herein is believed rate and reliable. How ev er, Allegro MicroSystems, Inc. assumes no re spon si bil i ty for its use; nor for any in fringe ment of patents or other rights of third parties which may result from its use. High Bandwidth, Fast Fault Response Current Sensor IC Package LF, 24-pin QSOP 3.91 ± ...