Topstek Current Transducer TQDV25A .. TQDV200A
Closed Loop Current Transducers
TQDV25A ~150A
Features
Applications
ꢀHighly reliable Closed Loop Hall Effect device
ꢀOpen Loop CT voltage output format: 4V out at nominal input
ꢀCompact and light weight
ꢀUPS systems
ꢀIndustrial robots
ꢀNC tooling machines
ꢀFast response time
ꢀElevator controllers
ꢀExcellent linearity of the output voltage over a wide input range
ꢀExcellent frequency response (> 150 kHz)
ꢀProcess control devices
ꢀAC and DC servo systems
ꢀMotor speed controller
ꢀ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)
ꢀ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
ꢀ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
Specifications
TQDV
25A
TQDV
37.5A
TQDV
50A
TQDV
75A
TQDV
100A
TQDV
125A
Parameter
Symbol Unit
Nominal Input Current
Linear Range
Ifn
Ifs
A DC
A DC
A
±25
±ꢀ±.5
±50
±±5
±100
±250
If /2000
ꢁ0
±125
±ꢁꢀ
±ꢂ4
±125
±1ꢃꢃ
±ꢀ1ꢀ
Secondary Coil Current
Consumption Current@ If=Ifn
Nominal Output Voltage
Supply Voltage Range
Offset Voltage
IS
If /1000
50
ICC
mA
V
ꢀ5
ꢁ0
4ꢃ
±2
Vhn
VCC/VEE
Vos
ROUT
Voh
ꢆ
±4 V±1% at If=Ifn ( RL=10kꢄ) , Ta=25°C
±15V ±5%
V
mV
ꢄ
Within ±40 mV @ If=0, Ta=25°C
<100ꢄ(50ꢄnominal)
Output Resistance
Hysteresis Error
mV
%
Within ±ꢀ5 mV @ If=Ifnꢅ0
Within ±0.2% of Ifn
Linearity
Response Time (ꢂ0%Vhn)
Frequency Bandwidth (-ꢀdB)
Thermal Drift of Output
Thermal Drift of
Zero Current Offset
Dielectric Strength
Isolation Resistance
@ 1000 VDC
Tr
ꢁsec
Hz
ꢀ ꢁsec max.
@
d If /dt = Ipn / ꢁsec
fBW
-
DC to 150kHz
%/°C
Within ±0.02 %/°C @ Ifn
Within ±1.5 mV/°C @ Ifn
AC2.5KV X ꢁ0 sec
>1000 Mꢄ
-
-
mV/°C
V
RIS
Mꢄ
Operating Temperature
Storage Temperature
Mass
Ta
Ts
W
°C
°C
g
-40°C to ꢃ0°C
-40°C to ꢃ5°C
2ꢃ g
- 100 -
www.topstek.com
TQDV V080201 7/1/2008