topstek current transducer tqh10a .. tqh50a-sp1 - 1 - www.topstek.com tqh-sp1 v080707 7/7/2008 tqh10a~50a-sp1 features highly reliable closed loop hall effect device compact and light weight fast response time excellent linearity of the output voltage over a wide input range excellent frequency response (> 100 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 TQH10A-SP1 tqh12a-sp1 tqh17a-sp1 tqh25a-sp1 tqh50a-sp1 nominal input current i pn a dc 10 12.5 16.667 25 50 linear range i fs a dc 15 19 25 38 75 conversion ratio k n - 5:1000 4:1000 3:1000 2:1000 1:1000 consumption current@ i f =i pn i cc ma 62 62 62 62 62 max sec. resistance@25c r cmax 59 59 59 59 59 max sec. resistance@80c r cmax 61 61 61 61 61 maximum load resistance r mmax 80 80 80 80 80 minimum load resistance r mmin 65 65 65 65 65 nominal output current i on ma 50 50 50 50 50 supply voltage range v cc /v ee v 12v 15v5% offset current i os ma within 0.2 ma @ i p =0, t a =25c hysteresis error i oh ma within 0.2 ma @ i f =i fn 0 linearity % within 0.5% of i fn response time (90%v hn ) t r sec 1.2 sec max. @ d i f / dt = i pn / sec frequency bandwidth (-3db) f bw hz dc to 100khz thermal drift of output - %/c within 0.02 %/c @ i fn thermal drift of zero current offset - ma/c within 0.4ma 0c~80c 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 <14 g
topstek current transducer tqh10a .. tqh50a-sp1 - 2 - www.topstek.com tqh-sp1 v080707 7/7/2008 max max max 3 [ ? ; s secondary pins 4x(0.5x0.25) primary [ g i - -15v i out nc i + pin assignment +15v bottom view 7 4 + $ 6 3 p d [ appearance, dimensions and pin identification all dimensions in mm 0.1, holes C0, +0.2 except otherwise noted. nominal primary current 3--4a 5--7a 7.5--12a 12.5--25a 30--37.5a 40--50a d (mm) 0.6 0.8 1.0 1.3 1.4 1.6
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