topstek current transducer TQDV25A .. tqdv200a - 100 - www.topstek.com tqdv v080201 7/1/2008 closed loop current transducers TQDV25A ~150a features highly reliable closed loop hall effect device open loop ct voltage output format: 4v out at nominal input compact and light weight fast response time excellent linearity of the output voltage over a wide input range excellent frequency response (> 150 khz) low power consumption at quiescent state (10 ma nominal) capable of measuring both dc and ac, both pulsed and mixed high isolation voltage between the measuring circuit and the current-carrying conductor (ac2.5kv) extended operating temperature range flame-retardant plastic case and silicone encapsulant, using ul classified materials, ensures protection against environmental contaminants and vibration over a wide temperature and humidity range applications ups systems industrial robots nc tooling machines elevator controllers process control devices ac and dc servo systems motor speed controller electrical vehicle controllers inverter-controlled welding machines general and special purpose inverters power supply for laser processing machines controller for traction equipment eg. electric trains other automatic control systems specifications parameter symbol unit tqdv 25a tqdv 37.5a tqdv 50a tqdv 75a tqdv 100a tqdv 125a nominal input current i fn a dc 25 37.5 50 75 100 125 linear range i fs a dc 63 94 125 188 250 313 secondary coil current i s a i f /1000 i f /2000 consumption current@ i f =i fn i cc ma 35 50 60 48 60 72 nominal output voltage v hn v 4 v1% at if=i fn ( r l =10k) , t a =25c supply voltage range v cc /v ee v 15v 5% offset voltage v os mv within 40 mv @ i f =0, t a =25c output resistance r out <100(50nominal) hysteresis error v oh mv within 35 mv @ i f =i fn 0 linearity % within 0.2% of i fn response time (90%v hn ) t r sec 3 sec max. @ d i f / dt = i pn / sec frequency bandwidth (-3db) f bw hz dc to 150khz thermal drift of output - %/c within 0.02 %/c @ i fn thermal drift of zero current offset - mv/c within 1.5 mv/c @ i fn dielectric strength - v ac2.5kv x 60 sec isolation resistance @ 1000 vdc r is m >1000 m operating temperature t a c -40c to 80c storage temperature t s c -40c to 85c mass w g 28 g
topstek current transducer TQDV25A .. tqdv200a - 101 - www.topstek.com tqdv v080201 7/1/2008 +15v -15v v out 0v pin assignment s s [ [ mounting post appearance, dimensions and pin identification all dimensions in mm 0.1, holes C0, +0.2 except otherwise noted.
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