CAS 25-NP LEM USA Inc, CAS 25-NP Datasheet

SENSOR CURRENT 25A 5V MOD

CAS 25-NP

Manufacturer Part Number
CAS 25-NP
Description
SENSOR CURRENT 25A 5V MOD
Manufacturer
LEM USA Inc
Series
CASr
Datasheet

Specifications of CAS 25-NP

Featured Product
CAS Series
Current - Sensing
25A
Accuracy
±0.8%
Sensitivity
25mV/A
Current - Supply
-
Sensor Type
Flux Gate
Voltage - Supply
4.75 V ~ 5.25 V
Output
0 ~ 5 VDC
Frequency
300kHz
Response Time
300ns
Polarization
Bidirectional
Operating Temperature
-40°C ~ 85°C
Package / Case
Module
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
398-1089-5
100526/5
For the electronic measurement of current: DC, AC, pulsed..., with galvanic isolation
between the primary (high power) and the secondary circuit (electronic circuit).
Features
Advantages
Current Transducer CAS series
Ref: CAS 6-NP, CAS 15-NP, CAS 25-NP, CAS 50-NP
Closed loop (compensated) multi-range
current transducer
Voltage output
Single supply
Isolated plastic case material recognized
according to UL 94-V0
Compact design for PCB mounting.
Very low temperature coefficient of offset
Very good dv/dt immunity
LTS compatible footprint
Reduced height.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
Applications
Standards
Application Domain
AC variable speed 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.
EN 50178
UL 508
IEC 61010-1 (safety).
Industrial.
I
PN
= 6, 15, 25, 50 A
www.lem.com
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Related parts for CAS 25-NP

CAS 25-NP Summary of contents

Page 1

... Current Transducer CAS series Ref: CAS 6-NP, CAS 15-NP, CAS 25-NP, CAS 50-NP For the electronic measurement of current: DC, AC, pulsed..., with galvanic isolation between the primary (high power) and the secondary circuit (electronic circuit). Features ● Closed loop (compensated) multi-range current transducer ● ...

Page 2

... Absolute maximum ratings Parameter Supply voltage Primary conductor temperature Non repetitive primary current pulse (20 µs), in powered or unpowered state ESD rating, Human Body Model (HBM) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum ratings for extended periods may degrade reliability. ...

Page 3

... Temperature coefficient of V OUT @ Theoretical sensitivity Sensitivity error Temperature coefficient of G Linearity error Magnetic offset current ( referred to primary Output current noise (spectral density) rms 100 .. 100 kHz referred to primary Peak-peak output ripple at oscillator frequency f = 450 kHz (typ.) Reaction time @ ...

Page 4

... Temperature coefficient of V OUT @ Theoretical sensitivity Sensitivity error Temperature coefficient of G Linearity error Magnetic offset current ( referred to primary Output current noise (spectral density) rms 100 Hz .. 100 kHz referred to primary Peak-peak output ripple at oscillator frequency f = 450 kHz (typ.) Reaction time @ ...

Page 5

... Electrical data CAS 25- 25° turn Parameter Primary nominal current rms Primary current, measuring range Number of primary turns Supply voltage Current consumption Output voltage Output voltage @ Electrical offset voltage Electrical offset current referred to primary Temperature coefficient of V OUT @ Theoretical sensitivity Sensitivity error ...

Page 6

... Temperature coefficient of V OUT @ Theoretical sensitivity Sensitivity error Temperature coefficient of G Linearity error Magnetic offset current ( referred to primary Output current noise (spectral density) rms 100 Hz .. 100 kHz referred to primary Peak-peak output ripple at oscillator frequency f = 450 kHz (typ.) Reaction time @ ...

Page 7

Typical performance characteristics CAS 6-NP 0.1 0.05 0 -0.05 -0 (A) P Figure 1: Linearity error -0.5 0 0.5 t (µs) Figure 3: Step response 10000 1000 100 ...

Page 8

Typical performance characteristics CAS 15-NP 0.1 0.05 0 -0.05 -0.1 - (A) P Figure 7: Linearity error 17.5 15 12.5 10 7.5 5 2.5 0 -2.5 -0.5 0 0.5 t (µs) Figure 9: Step response 10000 1000 100 ...

Page 9

... Typical performance characteristics CAS 25-NP 0.1 0.05 0 -0.05 -0.1 - (A) P Figure 13: Linearity error 29.2 25.0 20.8 16.7 12.5 8.3 4.2 0.0 -4.2 -0.5 0 0.5 t (µs) Figure 15: Step response 10000 1000 100 10 1 1.E+1 1.E+2 1.E+3 1.E+4 1.E+5 1.E+6 1.E+7 Frequency (Hz) ...

Page 10

Typical performance characteristics CAS 50-NP 0.1 0.05 0 -0.05 -0.1 - (A) P Figure 19: Linearity error 58.3 50.0 41.7 33.3 25.0 16.7 8.3 0.0 -8.3 -0.5 0 0.5 t (µs) Figure 21: Step response 10000 1000 100 ...

Page 11

... CAS 25- (°C) A Figure 27 for CAS 25- The maximum continuous DC primary current plot shows the boundary of the area for which all the following conditions are true: I < Junction temperature Tj < 125 °C - Primary conductor temperature < 110 °C - Resistor power dissipation < 0.5 x rated power ...

Page 12

... Caution: As most applications will use the transducer with only one single primary turn (N = 1), much of this datasheet P is written in terms of primary current instead of current linkages. However, the ampere-turns (A-t) unit is used to emphasis that current linkages are intended and applicable. Transducer simplified model ...

Page 13

... Filtering and decoupling Supply voltage V C The fluxgate oscillator draws current pulses rate of ca. 900 kHz. Significant 900 kHz voltage ripple on V can indicate a power supply with high impedance these frequencies the power supply rejection ratio is low, and the ripple may appear on the transducer output V reference V ...

Page 14

CAS Series, PCB footprint Assembly on PCB ● Recommended PCB hole diameter 1.3 mm for primary pin ● Maximum PCB thickness ● Wave soldering profile No clean process only. Safety This transducer must be used in limited-energy secondary circuits according ...

Page 15

Dimensions CAS Series (in mm. General linear tolerance ± 0.25 mm) Connection 100526/5 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. CAS series Page 15/15 www.lem.com ...

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