LTSR 6-NP【PDF 1/3 页】SENSOR CURRENT 6A 5V TH

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Sheet目录470

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Current Transducer LTSR 6-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).

16073

I PN

= 6 At

Electrical data

I PN Primary nominal current rms

I PM Primary current, measuring range

? 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

Accuracy - Dynamic performance data

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 k W

500 pF

208.33 W

< 50 ppm/K

5 V

28+ I S 5) +( V OUT R / L ) mA

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

Notes : Only in ref OUT mode or with external REF less than 2.525 V and greater than

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 mV

5 x I PN ± 8 mV

10 x I PN ± 10 mV

TCV REF Temperature coefficient of internal V REF

@ I P = 0 - 10°C .. + 85°C 50 ppm/K

- 40°C .. - 10°C 100 ppm/K

t ra Reaction time @ 10 % of I PN < 100 ns

t r Response time to 90 % of I PN step < 400 ns

di/dt di/dt accurately followed > 15 A/μs

BW Frequency bandwidth (0 .. - 0.5 dB) DC .. 100 kHz

(- 0.5 .. 1 dB) DC .. 200 kHz

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 k W . 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

www.lem.com

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