topstek current transducer tqh5a .. tqh50a - 106 - www.topstek.com tqh v080201 7/1/2008 tqh5a~50a 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 tqh5a tqh7.5a tqh10a tqh15a tqh25a tqh37.5a tqh50a nominal input current i fn a dc 5 7.5 10 15 25 37.5 50 linear range i fs a dc 15 22.5 30 45 75 113 140 conversion ratio k n - 6:1300 4:1300 3:1300 2: 1300 1:1300 1:1300 1:1600 consumption current@ i f =i fn i cc ma 35 35 35 35 31 41 43 sec. resistance@25c r cmax 53 53 53 53 53 53 80 sec. resistance@80c r cmax 55 55 55 55 55 55 83 maximum load resistance r mmax 118 118 118 118 153 84 57 minimum load resistance r mmin 45 45 45 45 45 45 20 nominal output current v hn ma 23.08 23.08 23.08 2 3.08 19.23 28.85 31.25 supply voltage range v cc /v ee v 15v 5% 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 3 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 tqh5a .. tqh50a - 107 - www.topstek.com tqh v080201 7/1/2008 max max max 3 [ ? ; s secondary pins 4x(0.5x0.25) primary [ g i - -15v i out 0v i + pin assignment +15v bottom view 7 4 + $ 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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