Current Transducer LTS 25-NP
For the electronic measurement of currents: DC, AC, pulsed,
mixed with galvanic isolation between the primary circuit (high power)
and the secondary circuit (electronic circuit).
IPN = 25 At
16054
Electrical data
IPN
IPM
VOUT
G
N S
R L
R IM
TCR IM
VC
IC
Features
Primary nominal current rms
Primary current, measuring range
Output voltage (Analog) @ IP
0
IP =
Sensitivity
Number of secondary turns (± 0.1 %)
Load resistance
Internal measuring resistance (± 0.5 %)
Temperature coefficient of R IM
Supply voltage (± 5 %)
Current consumption @ VC = 5 V
Typ
25
At
0 .. ± 80
At
2.5 ± (0.625·IP/IPN)
V
2.5 1) V
25
mV/A
2000
≥ 2
kW
50
W
< 50
ppm/K
5
V
28+IS2)+(VOUT/RL) mA
Advantages
Accuracy - Dynamic performance data
X
ε
L
Accuracy @ IPN, TA = 25°C
Accuracy with RIM @ IPN, TA = 25°C
Linearity error
± 0.2
± 0.7
< 0.1
Typ
TCVOUT Temperature coefficient of VOUT @ IP= 0 - 10°C .. + 85°C 50
- 40°C .. - 10°C
TCG
Temperature coefficient of G - 40°C .. + 85°C
VOM
Magnetic offset voltage @ IP = 0,
after an overload of 3 x IPN
5 x IPN
10 x IPN
tra
Reaction time @ 10 % of IPN
t r
Response time to 90 % of IPN step
di/dt
di/dt accurately followed
BW
Frequency bandwidth (0 .. - 0.5 dB)
(- 0.5.. 1 dB)
%
%
%
Max
100 ppm/K
150 ppm/K
50 3) ppm/K
± 0.5 mV
± 2.0 mV
± 2.0 mV
< 100
< 400
> 60
DC .. 100
DC .. 200
ns
ns
A/µs
kHz
kHz
General data
TA
Ambient operating temperature
TS
Ambient storage temperature
m
Mass
Standards
Notes: 1) Absolute value @ TA = 25°C, 2.475 < VOUT < 2.525
2)
IS = IP/NS
3)
Only due to TCRIM.
110209/22
●● Closed loop (compensated) multirange current transducer using
the Hall effect
●● Unipolar voltage supply
●● Isolated plastic case recognized
according to UL 94-V0
●● Compact design for PCB
mounting
●● Incorporated measuring
resistance
●● Extended measuring range.
°C
°C
10
g
EN 50178: 1997
IEC 60950-1: 2001
- 40 .. + 85
- 40.. + 100
●●
●●
●●
●●
●●
●●
●●
Excellent accuracy
Very good linearity
Very low temperature drift
Optimized response time
Wide frequency bandwidth
No insertion losses
High immunity to external
interference
●● Current overload capability.
Applications
●● AC variable speed drives and
servo motor drives
●● Static converters for DC motor
drives
●● Battery supplied applications
●● Uninterruptible Power Supplies
(UPS)
●● Switched Mode Power Supplies
(SMPS)
●● Power supplies for welding
applications.
Application domain
●● Industrial.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
Page 1/3
www.lem.com
