Topstek Current Transducer TK3A .. TK50A TK 3A~50A Applications Features iHighly reliable Hall Effect device iCompact and light weight iFast response time iExcellent linearity of the output voltage over a wide input range iExcellent frequency response (> 50 kHz) iLow power consumption (12 mA nominal) iCapable of measuring both DC and AC, both pulsed and mixed iHigh isolation voltage between the measuring circuit and the current-carrying conductor (AC2.5KV) iExtended operating temperature range iFlame-Retardant plastic case and silicone encapsulate, using UL classified materials, ensures protection against environmental contaminants and vibration over a wide temperature and humidity range iUPS systems iIndustrial robots iNC tooling machines iElevator controllers iProcess control devices iAC and DC servo systems iMotor speed controller iElectrical vehicle controllers iInverter-controlled welding machines iGeneral and special purpose inverters iPower supply for laser processing machines iController for traction equipment e.g. electric trains iOther automatic control systems Specifications Parameter Symbol Unit TK3A .. TK50A Nominal Input Current Ifn A DC 3 .. 50 Linear Range Ifs A DC ±9 .. ±150 = 3x Ifn Nominal Output Voltage Vhn V 4 V±1% at If=Ifn ( RL=10k) Offset Voltage Vos mV Within ±40 mV @ If=0, Ta=25°C Output Resistance ROUT <100 Hysteresis Error Voh mV Within ±15 mV @ If=Ifn0 Supply Voltage VCC/VEE V ±15V ±5% Linearity % Within ±1% of Ifn Consumption Current ICC mA ±12 mA nominal, ±16 mA max Response Time (90%Vhn) Tr Psec Frequency bandwidth (-3dB) fBW Hz DC to 50kHz Thermal Drift of Output - %/°C Within ±0.1 %/°C @ Ifn Thermal Drift of Zero Current Offset - mV/°C Dielectric Strength - V AC2.5KV X 60 sec Isolation Resistance @ 1000 VDC RIS M >1000 M Operating Temperature Ta °C -15°C to 80°C Storage Temperature Ts °C -20°C to 85°C Mass W g 10 g 5 Psec max. Within - 62 www.topstek.com @ d If /dt = Ifn / Psec ±1.5 mV/°C @ Ifn TK V080201 7/1/2008 Topstek Current Transducer TK3A .. TK50A Appearance, dimensions and pin identification for TK3A .. TK20A models All dimensions in mm ±0.2, holes –0, +0.2 except otherwise noted. max max 7.$ Primary[ G [ [3 [ʻ; Secondary pins 4x(0.5x0.3) s max [3 Pin Assignment [ H Bottom View -15V 0V +15V Vout I+ I- Part Number 3A to 20A PCB mounting hole layout TK3A TK4A TK5A TK6A TK7.5A TK10A TK12.5A TK15A TK18.5A TK20A d(mm) 0.6 0.8 0.8 0.8 1.0 1.2 1.2 1.4 1.4 1.6 e(mm) 1.2 1.2 1.2 1.2 1.6 1.8 1.8 2.2 2.2 2.4 - 63 www.topstek.com TK V080201 7/1/2008 Topstek Current Transducer TK3A .. TK50A Appearance, dimensions and pin identification for TK25A .. TK50A models All dimensions in mm ±0.2, holes –0, +0.2 except otherwise noted. Positive current flow direction max max 7.$ [3 Pin Assignment [ H Bottom View Primary[ G [ [3 [; Secondary pins 4x(0.5x0.3) s max 25A to 50A PCB mounting hole layout Part Number TK25A TK30A TK37.5A TK50A d(mm) 1x2 1x2 1x2.8 1x2.8 e(mm) 1.6x2.8 1.6x2.8 1.6x3.2 1.6x3.2 - 64 www.topstek.com TK -15V 0V +15V Vout I+ I- V080201 7/1/2008