Current Transducer LAS 50-TP IPN = 50 A For the electronic measurement of currents : DC, AC, pulsed, mixed, with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). Electrical data IPN IP VOUT V REF RL ROUT CL VC IC Vd Ve Vw Primary nominal r.m.s. current Primary current, measuring range Analog output voltage @ 50 A 0 .. 150 A IP V REF (0.625 *IP/IPN) V IP = 0 V REF 0.025 V Reference voltage - Output 2.5 0.025 V V REF Load impedance 1 M Output load resistance 2 k Output internal resistance < 20 Max. output capacitive load 1 nF Supply voltage ( 5 %) 5 V Current consumption @ VC = 5 V typ 17 mA R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn 5 kV R.m.s. voltage for partial discharge extinction @ 10 pC 2 kV Impulse withstand voltage 1.2/50 s 8 kV Accuracy - Dynamic performance data Accuracy 1) @ IPN , TA = 25C Linearity error 0 .. IPN 2) X L TCVOUT Thermal drift of VOUT @ IP = 0 - 40C .. + 85C TCVOUT / VREF Thermal drift of VOUT / VREF @ IP = 0 - 40C .. + 85C TC G Thermal drift of the gain - 40C .. + 85C VOM Residual voltage @ IP = 0, after an overload of 2 x IPN DC t ra Reaction time @ 10 % of IPN tr Response time @ 90 % of IPN di/dt di/dt accurately followed Output noise without external filter f Frequency bandwidth (- 1 dB) <1 < 0.7 Typ Max 80 120 50 80 150 300 5 < 200 < 500 > 100 < 10 DC .. 100 % % ppm/K ppm/K ppm/K mV ns ns A/s mVpp kHz General data TA TS Ambient operating temperature Ambient storage temperature - 40 .. + 85 - 40 .. + 100 m Mass Insulating material group Standards 20 g I EN 50178 (97.10.01) All Data are given with a R L = 10 k Notes : 1) 2) C C Features * Current transducer using Eta-technology * Unipolar voltage supply * Insulated plastic case recognized according to UL 94-V0 * Compact design for PCB mounting * Extended measuring range. Advantages * * * * * * * Excellent accuracy Very good linearity Very low temperature drift Optimized response time Wide frequency bandwidth No insertion losses High immunity to external interference * Current overload capability. Applications * AC variable speed drives and servo * * * * * motor drives Static converters for DC motor drives Battery supplied applications Uninterruptible Power Supplies (UPS) Switched Mode Power Supplies (SMPS) Power supplies for welding applications. Copyright protected. Excluding electrical, magnetic offsets and linearity Including magnetic offset. 040402/10 LEM Components w w w.lem.com Dimensions LAS 50-TP (in mm. 1 mm = 0.0394 inch) Connection Bottom view Front view Left view Number of Nominal output voltage Primary current primary turns Nominal IP N 1 [A] Maximal IP 50 [A] 150 V OUT [V] V REF 0 . 6 2 5 Mechanical characteristics * General tolerance * Fastening & connection of primary Recommended PCB hole * Fastening & connection of secondary Recommended PCB hole Primary resistance [m] RP 0.12 Primary insertion inductance LP [H] 0.008 Output Voltage - Primary Current 0.2 mm 6 pins 1.4 x 1 mm 2 mm 4 pins 0.7 x 0.6 mm 1.2 mm VOUT [ V ] 5 4.375 3.125 2.5 Remarks 1.875 * VOUT is positive when IP flows from terminals "IN" to 0.625 terminals "OUT". * This is a standard model. For different versions please contact us * Temperature of the primary conductor should not exceed 100C. - IPmax - IPN 0 IPN IPmax IP [ A ] LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.