TW25A Datasheet, PDF (1/2 Pages) Topstek Inc. – Topstek Current Transducers

Topstek Current Transducers TW25A .. TW300A
TW 25A~300A
Features
iHighly reliable Hall Effect device
Applications
iCompact and light weight. Two sensors in one package
iFast response time
iExcellent linearity of the output voltage over a wide input range
iExcellent frequency response (> 50 kHz)
i Low power consumption (22 mA nominal)
i Capable 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
Nominal Input Current
Symbol Unit
TW TW TW TW TW TW TW TW TW TW TW
25A 37.5A 50A 75A 100A 125A 150A 175A 200A 250A 300A
I_fn A DC 25 37.5 50 75 100 125 150 175 200 250 300
Linear Range
I_fs A DC ±75 ±112.5 ±150 ±225 ±300 ±375 ±450 ±525 ±600 ±750 ±750
Nominal Output Voltage
V_hn
V
4 V±1% @ If=I_fn ( R_L=10kȍ)
Offset Voltage
V_os mV
Within ±35 mV @ I_f=0, T_a=25°C
Output Resistance
R_OUT
ȍ
<100ȍ(50ȍnominal)
Hysteresis Error
V_oh mV
Within ±30 mV @ I_f=I_fnĺ0
Supply Voltage
V_CC/V_EE V
±15V ±5%
Linearity
È¡
%
Within ±1% of I_fn
Consumption Current
I_CC
mA
±22 mA nominal, ±30 mA max
Response Time (90%V_hn)
T_r Psec
Frequency bandwidth (-3dB) f_BW Hz
5 Psec max. @ d I_f /dt = I_fn / Psec
DC to 50kHz
Thermal Drift of Output
Thermal Drift of
Zero Current Offset
Dielectric Strength
Isolation Resistance
@ 1000 VDC
Operating Temperature
- %/°C
Within ±0.1 %/°C @ I_fn
- mV/°C < ±3 mV/°C < ±1.5 mV/°C
< ±1 mV/°C
-
V
AC2.5KV X 60 sec
R_IS Mȍ
>1000 Mȍ
T_a
°C
-15°C to 80°C
Storage Temperature
T_s
°C
-20°C to 85°C
Mass
W
g
150 g
- 98 -
www.topstek.com
TW V080201 7/1/2008