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CKSR6-NP Datasheet(PDF) 7 Page - LEM |
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CKSR6-NP Datasheet(HTML) 7 Page - LEM |
7 / 19 page Page 7/19 22March 2013/version 9 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com CKSR series Electrical data CKSR 50-NP At T A = 25 °C, UC = + 5 V, NP = 1 turn, RL = 10 kΩ internal reference unless otherwise noted (see Min, Max, typ. definition paragraph in page 13). Parameter Symbol Unit Min Typ Max Comment Primary nominal rms current I PN A 50 Apply derating according to fig. 28 Primary current, measuring range I PM A -150 150 Number of primary turns N P 1,2,3,4 Supply voltage U C V 4.75 5 5.25 Current consumption I C mA ) ( N mA I S p 15 + ) ( N mA I S p 20 + N S = 966 turns Reference voltage @ I P = 0 A V ref V 2.495 2.5 2.505 Internal reference External reference voltage V ref V 0 4 Output voltage V out V 0.375 4.625 Output voltage @ I P = 0 A V out V V ref Electrical offset voltage V OE mV -0.725 0.725 100% tested V out - Vref Electrical offset current referred to primary I OE mA -58 58 100% tested Temperature coefficient of V REF TCV REF ppm/K ±5 ±50 Internal reference Temperature coefficient of V out @ I P = 0 A TCV out ppm/K ±0.7 ±3 ppm/K of 2.5 V -40 °C .. 105 °C (at ± 6 Sigma) Theoretical sensitivity G th mV/A 12.5 625 mV/ I PN Sensitivity error ε G % -0.7 0.7 100% tested Temperature coefficient of G TCG ppm/K ±40 -40 °C .. 105 °C Linearity error ε L % of I PN -0.1 0.1 Magnetic offset current (10 × I PN) referred to primary I OM A -0.1 0.1 Output rms current noise (spectral density) 100 Hz .. 100 kHz referred to primary I no µA/Hz½ 20 R L = 1 kΩ Peak-peak output ripple at oscillator frequency f = 450 kHz (typ.) - mV 5 20 R L = 1 kΩ Reaction time @ 10 % of I PN t ra µs 0.3 R L = 1 kΩ, di/dt = 100 A/µs Step response time to 90 % of I PN t r µs 0.3 R L = 1 kΩ, di/dt = 100 A/µs Frequency bandwidth (± 1 dB) BW kHz 200 R L = 1 kΩ Frequency bandwidth (± 3 dB) BW kHz 300 R L = 1 kΩ Overall accuracy X G % of I PN 0.9 Overall accuracy @ T A = 85 °C (105 °C) X G % of I PN 1.2 (1.3) Accuracy X % of I PN 0.8 Accuracy @ T A = 85 °C (105 °C) X % of I PN 1.1 (1.3) |
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