TOPSTEK TW125A

Topstek Current Transducers TW25A .. TW300A
TW 25A~300A
Features
Applications
iHighly reliable Hall Effect device
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)
iLow power consumption (22 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
TW
TW
TW
25A 37.5A 50A
37.5
50
TW
75A
TW
TW
TW
TW
TW
TW
TW
100A 125A 150A 175A 200A 250A 300A
75
100
Nominal Input Current
Ifn
A DC
25
Linear Range
Ifs
A DC
±75 ±112.5 ±150 ±225 ±300 ±375 ±450 ±525 ±600 ±750 ±750
Nominal Output Voltage
Vhn
V
4 V±1% @ If=Ifn ( RL=10k)
Offset Voltage
Vos
mV
Within ±35 mV @ If=0, Ta=25°C
Output Resistance
ROUT
<100(50nominal)
Hysteresis Error
Voh
mV
Within ±30 mV @ If=Ifn0
Supply Voltage
VCC/VEE
V
±15V ±5%
Linearity
%
Within ±1% of Ifn
Consumption Current
ICC
mA
±22 mA nominal, ±30 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
150 g
5 Psec max.
125
@
150
200
250
300
d If /dt = Ifn / Psec
< ±3 mV/°C < ±1.5 mV/°C
- 98 www.topstek.com
175
< ±1 mV/°C
TW
V080201
7/1/2008
Topstek Current Transducers TW25A .. TW300A
Appearance, dimensions and pin identification
All dimensions in mm ±0.1, holes –0, +0.2 except otherwise noted.
Positive current flow direction
Pin Assignment
0V
B output
A output
-15V
+15V
3
5
Offset A Gain A
Gain B Offset B
- 99 www.topstek.com
TW
V080201
7/1/2008