LEM LTSR6-NP

Current Transducer LTSR 6-NP
IPN = 6 At
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).
16073
Electrical data
IPN
IPM
Primary nominal current rms
Primary current, measuring range
6
0 .. ± 19.2 1)
ÎP
VOUT
Overload capability
Output voltage (Analog) @ IP
IP = 0
Reference voltage (internal reference), refout mode
Reference voltage (external reference), refin mode
Sensitivity
Number of secondary turns (± 0.1 %)
Load resistance
Maximun capacitive loading
Internal measuring resistance (± 0.5 %)
Temperature coefficient of R IM
Supply voltage (± 5 %)
Current consumption @ VC = 5 V
Typ
250
At
2.5 ± (0.625·IP/IPN) V
2.5 2)
V
2.5 3)
V
1.9 .. 2.7 4)
V
104.16
mV/A
2000
≥2
kΩ
500
pF
208.33
Ω
< 50
ppm/K
5
V
28 + IS5)+ (VOUT/RL) mA
VREF
G
NS
RL
C Lmaxi
R IM
TCR IM
VC
IC
At
At
ε
L
Accuracy @ IPN , TA = 25°C
Accuracy with R IM @ IPN , TA = 25°C
Linearity error
TCVOUT Temperature coefficient of VOUT /VREF @ IP = 0
- 40°C .. + 85°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
TCVREF Temperature coefficient of internal VREF
@ IP = 0 - 10°C .. + 85°C
- 40°C .. - 10°C
tra
Reaction time @ 10 % of IPN
tr
Response time to 90 % of IPN step
di/dt di/dt accurately followed
BW
Frequency bandwidth (0 .. - 0.5 dB)
(- 0.5 .. 1 dB)
Notes:
1)
± 0.2
± 0.7
< 0.1
Maxi
%
%
%
150
50 6)
ppm/K
ppm/K
± 0.5
± 2.0
± 2.0
mV
mV
mV
50
100
< 100
< 400
> 15
DC .. 100
DC .. 200
ppm/K
ppm/K
ns
ns
A/µs
kHz
kHz
Only in refout 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) VOUT is linked to VREF,
by conception the difference between these two nodes for IP = 0 is maximum
± 25 mV, 2.475 V < VOUT < 2.525 V. 3) In Refout mode at TA = 25°C, 2.475 V< VREF
< 2.525 V. The minimal impedance loading the ref pin should be > 220 kΩ. Internal
impedance = 600 Ω. 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) maxi ± 1 mA is needed.
5)
IS= IP/N S. 6) Only due to TCR IM.
070307/10
• Closed loop (compensated) multi•
•
•
•
•
•
•
range 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
Accuracy - Dynamic performance data
X
Features
•
•
•
•
•
•
•
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.
Copyright protected
page 1/3
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Current Transducer LTSR 6-NP
General data
TA
TS
Ambient operating temperature
Ambient storage temperature
Insulating material group
Mass
Standards 7)
m
- 40 .. + 85
- 40 .. + 100
III a
10
°C
°C
g
EN 50178: 1997
IEC 60950-1: 2001
Isolation characteristics
Vd
VW
Rms voltage for AC isolation test, 50/60 Hz, 1 min
Impulse withstand voltage 1.2/50 µs
3
>8
kV
kV
Ve
Rms voltage for partial discharge extinction @ 10pC
Mini
> 1.5
kV
dCp
dCl
CTI
Creepage distance 8)
Clearance distance 9)
Comparative Tracking Index (Group III a)
Mini
15.35
6.2
175
mm
mm
Application examples
According to EN 50178 and IEC 61010-1 standards and following conditions:
• Over voltage category OV 3
• Pollution degree PD2
• Non-uniform field
EN 50178
IEC 61010-1
Rated isolation voltage
Nominal voltage
Single isolation
600 V
600 V
Reinforced isolation
300 V
300 V
dCp, dCI, V W
Notes:
7)
8)
9)
Specification according to IEC 1000-4-8 not adhered to in DC, error
according to two axes 1.5% instead of 1%.
On housing.
On PCB with soldering pattern UTEC93-703.
Safety
This transducer must be used in electric/electronic equipment with respect to
applicable standards and safety requirements in accordance with the manufacturer's
operating instructions.
Caution, risk of electrical shock
When operating the transducer, certain parts of the module can carry hazardous
voltage (eg. primary busbar, power supply).
Ignoring this warning can lead to injury and/or cause serious damage.
This transducer is a built-in device, whose conducting parts must be inaccessible
after installation.
A protective housing or additional shield could be used.
Main supply must be able to be disconnected.
page 2/3
070307/10
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
w w w .lem.com
Dimensions LTSR 6-NP
(in mm. 1 mm = 0.0394 inch)
Operation principle
Model + N° SP
Date code
Bottom view
Front view
Right view
Back view
Number
of primary
turns
1
Primary nominal
current rms
IPN [ A ]
Nominal 10)
output voltage
VOUT [ V ]
±6
2.5 ± 0.625
Primary
resistance
R P [ mΩ ]
0.18
Primary
insertion inductance
L P [ µH ]
Recommended
connections
±3
2.5 ± 0.625
0.81
±2
2.5 ± 0.625
1.62
• General tolerance
• Fastening & connection of primary
Recommended PCB hole
• Fastening & connection of secondary
Recommended PCB hole
• Additional primary through-hole
2
5
3
4
OUT
1
6
2
5
3
4
OUT
1
2
3
VOUT [ V ]
5
4.5
3.125
2.5
1.875
• VOUT is positive when IP flows from terminals 1, 2, 3 to terminals
6, 5, 4
• For the EMC, the acceptance criteria are available on request
• Temperature of the primary jumper should not exceed 100 [°C].
10)
1
6
Output Voltage - Primary Current
± 0.2 mm
6 pins 0.8 x 0.8 mm
1.3 mm
4 pins 0.5 x 0.35 mm
0.8 mm
∅ 3.2 mm
Remarks
Note:
OUT
0.12
IN
Mechanical characteristics
4
0.05
IN
3
5
0.013
IN
2
6
0.5
- IPmaxi
- IPN 0
IPN
IPmaxi
IP [ At ]
Output voltage when LTSR 6-NP is used with internal reference.
page 3/3
070307/10
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
w w w .lem.com