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ADE7761BARSZ-RL Datasheet(PDF) 5 Page - Analog Devices |
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ADE7761BARSZ-RL Datasheet(HTML) 5 Page - Analog Devices |
5 / 24 page ADE7761B Rev. 0 | Page 5 of 24 ABSOLUTE MAXIMUM RATINGS TA = 25°C, unless otherwise noted. Table 3. Parameter Rating VDD to AGND −0.3 V to +7 V Analog Input Voltage to AGND V1A, V1B, V1N, V2N, V2P, MISCAL −6 V to +6 V Reference Input Voltage to AGND −0.3 V to VDD + 0.3 V Digital Input Voltage to DGND −0.3 V to VDD + 0.3 V Digital Output Voltage to DGND −0.3 V to VDD + 0.3 V Operating Temperature Range Industrial −40°C to +85°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C 20-Lead SSOP, Power Dissipation 450 mW θJA Thermal Impedance 112°C/W Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 220°C Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. PERFORMANCE ISSUES THAT MAY AFFECT BILLING ACCURACY The ADE7761B provides pulse outputs, CF, F1, and F2, that are intended to be used for the billing of active energy. Pulses are generated at these outputs in two different situations. Case 1 When the analog input V2P − V2N complies with the conditions described in Figure 34, the CF, F1, and F2 frequencies are proportional to active power and can be used to bill active energy. Case 2 When the analog input V2P − V2N does not comply with the conditions described in Figure 34, the ADE7761B does not measure active energy but a quantity proportional to kiloampere- hours (kAh). This quantity is used to generate pulses on the same CF, F1, and F2. This situation is indicated when the FAULT pin is high. Analog Devices, Inc., cautions users of the ADE7761B about the following: • Billing active energy in Case 1 is consistent with the under- standing of the quantity represented by pulses on the CF, F1, and F2 outputs (watthour). • Billing active energy while the ADE7761B is in Case 2 must be decided knowing that the entity measured by the ADE7761B in this case is ampere-hour and not watthour. Users should be aware of this limitation and decide if the ADE7761B is appropriate for their application. ESD CAUTION |
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