LAS50-TP Datasheet, PDF (1/3 Pages) LEM – Current Transducer

Current Transducer LAS 50-TP
For the electronic measurement of currents : DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit (high power)
and the secondary circuit (electronic circuit).
I_PN = 50 A
Electrical data
I
PN
I_P
V
OUT
Primary nominal r.m.s. current
Primary current, measuring range
Analog output voltage @
R
L
R_OUT
V _REF
C_L
V_C
I_C
Output load resistance
Output internal resistance
Internal reference voltage
V _REF load resistance
V _REF internal resistance
V _REF external voltage range
Max. output capacitive load
Supply voltage (± 5 %)
Current consumption @ V_C = 5 V
16069
I
P
I_P = 0
typ
50
A
0 .. ± 150
A
V
REF
±
(0.625·I /I )
P PN
V
V _REF ± 0.025
V
≥2
kΩ
< 20
Ω
2.5 ± 0.025
V
≥1
MΩ
200
Ω
2.0 .. 2.8
V
1
nF
5
V
18
mA
Accuracy - Dynamic performance data
X
Accuracy ¹⁾ @ I , T = 25°C
ε_L
PN A
Linearity error 0 .. I_PN ²⁾
TCV Thermal drift of V @ I = 0
OUT
OUT
P
ε ^{TCVOUT / VREF Thermal drift of VOUT / VREF @ IP = 0}
TC Thermal drift of the gain
G
- 40°C.. + 85°C
- 40°C.. + 85°C
- 10°C.. + 85°C
- 40°C.. - 10°C
<±1
%
< 0.7
%
Typ Max
80 120
50 80
150 300
400 700
ppm/K
ppm/K
ppm/K
ppm/K
V_OM
t_ra
t_r
di/dt
f
Residual voltage @ I_P = 0, after an overload of 2 x I_{PN DC} ± 5
Reaction time @ 10 % of I_PN
< 200
Response time @ 90 % of I_PN
< 500
di/dt accurately followed
> 100
Output noise without external filter
< 10
Frequency bandwidth (- 1 dB)
DC .. 100
mV
ns
ns
A/µs
mVpp
kHz
General data
T_A
Ambient operating temperature
T
Ambient storage temperature
S
m
Mass
Standards
- 40 .. + 85
°C
- 40 .. + 100 °C
20
g
EN 50178 : 1997
Features
• Current transducer using
Eta-technology
• Unipolar voltage supply
• Insulated plastic case recognized
according to UL 94-V0
• Compact design for PCB mounting
• Extended measuring range.
Advantages
• 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.
All Data are given with a R_L = 10 kΩ
Notes : ¹⁾ Excluding electrical, magnetic offsets and linearity
2) _{Including magnetic offset.}
Copyright protected.
LEM
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
060504/14
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