Topstek Current Transducers TW25A .. TW300A
Features
TW 25A~300A
Applications
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
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
Specifications
Parameter
Nominal Input Current
Linear Range
Nominal Output Voltage
Offset Voltage
Output Resistance
Hysteresis Error
Supply Voltage
Linearity
Consumption Current
Response Time (90%V
hn
)
Frequency bandwidth (-3dB)
Thermal Drift of Output
Thermal Drift of
Zero Current Offset
Dielectric Strength
Isolation Resistance
@ 1000 VDC
Operating Temperature
Storage Temperature
Mass
I
CC
T
r
f
BW
-
-
-
R
IS
T
a
T
s
W
Symbol Unit
I
fn
I
fs
V
hn
V
os
R
OUT
V
oh
V
CC
/V
EE
mV
V
%
mA
Psec
Hz
%/擄C
mV/擄C
V
M
擄C
擄C
g
< 鹵3 mV/擄C < 鹵1.5 mV/擄C
AC2.5KV X 60 sec
>1000 M
-15擄C to 80擄C
-20擄C to 85擄C
150 g
A DC
A DC
V
mV
TW
TW
TW
25A 37.5A 50A
25
37.5
50
TW
75A
75
TW
TW
TW
TW
TW
TW
TW
100A 125A 150A 175A 200A 250A 300A
100
125
150
175
200
250
300
鹵75 鹵112.5 鹵150 鹵225 鹵300 鹵375 鹵450 鹵525 鹵600 鹵750 鹵750
4 V鹵1% @ If=I
fn
( R
L
=10k )
Within 鹵35 mV @ I
f
=0, T
a
=25擄C
<100 (50 nominal)
Within 鹵30 mV @ I
f
=I
fn
0
鹵15V 鹵5%
Within 鹵1% of I
fn
鹵22 mA nominal, 鹵30 mA max
5
Psec
max.
@
d
I
f
/dt = I
fn
/
Psec
DC to 50kHz
Within 鹵0.1 %/擄C @ I
fn
< 鹵1 mV/擄C
- 98 -
www.topstek.com
TW
V080201
7/1/2008
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