LTSR6-NP_11 Datasheet, PDF (1/3 Pages) LEM – Current Transducer

Current Transducer LTSR 6-NP
I_PN
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).
= 6 At
16073
Electrical data
I_PN
Primary nominal current rms
I_PM Primary current, measuring range
Î_P
Overload capability
V_OUT Output voltage (Analog) @ I_P
I_P = 0
V_REF Reference voltage (internal reference), Ref_OUT mode
Reference voltage (external reference), Ref_IN mode
G
Sensitivity
N _S Number of secondary turns (± 0.1 %)
R _L Load resistance
C _{L max} Maximum capacitive loading
R _IM Internal measuring resistance (± 0.5 %)
TCR _IM Temperature coefficient of R _IM
V_C
Supply voltage (± 5 %)
I_C
Current consumption @ V_C = 5 V Typ
6
At
0 .. ± 19.2 ¹⁾
At
250
At
2.5 ± (0.625·I_P/I_PN) V
2.5 ²⁾
V
2.5 ³⁾
V
1.9 .. 2.7 ⁴⁾
V
104.16
mV/A
2000
≥2
kW
500
pF
208.33
W
< 50
ppm/K
5
V
28+I_S⁵⁾+(V_OUTR/_L) mA
Accuracy - Dynamic performance data
Features
●● 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
●● Access to the internal voltage
reference
●● Possibility to feed the transducer
reference from external supply.
Advantages
X
Accuracy @ I_PN , T_A = 25°C ± 0.2
%
Accuracy with R _IM @ I_PN , T_A = 25°C ± 0.7
%
e_L
Linearity error < 0.1
%
Max
TCV_OUT Temperature coefficient of V_OUT /V_REF @ I_P = 0
- 40°C .. + 85°C 150
ppm/K
TCG Temperature coefficient of G - 40°C .. + 85°C
50 ⁶⁾
ppm/K
V_OM Magnetic offset voltage @ I_P = 0,
after an overload of 3 x I_PN ± 7

5 x I_PN ± 8

10 x I_PN ± 10
TCV_REF Temperature coefficient of internal V_REF
@ I_P = 0 - 10°C .. + 85°C 50
- 40°C .. - 10°C 100
mV
mV
mV
ppm/K
ppm/K
t_ra
t_r
di/dt
Reaction time @ 10 % of I_PN < 100
Response time to 90 % of I_PN step < 400
di/dt accurately followed > 15
ns
ns
A/µs
BW Frequency bandwidth (0 .. - 0.5 dB) DC .. 100
kHz
(- 0.5 .. 1 dB) DC .. 200
kHz
Notes: ¹⁾ Only in ref_OUT mode or with external REF less than 2.525 V and greater than
2.475 V. For external REF out of these limits see leaflet. ²⁾ V_OUT is linked to V_REF, by
conception the difference between these two nodes for I_P = 0 is maximum ± 25 mV,
2.475 V < V_OUT < 2.525 V. ³⁾ In Ref_OUT mode at T_A = 25°C, 2.475 V< V_REF
^{< 2.525 V. The minimal impedance loading the ref pin should be > 220 kW. Internal}
impedance = 600 W. For most applications you need to buffer this output to feed it
into an ADC for example. ⁴⁾ To overdrive the REF (1.9 V .. 2.7 V) max ± 1 mA is
needed. ⁵⁾ I_S = I_P/N_S. ⁶⁾ Only due to TCR _IM.
●● 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.
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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
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