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Specifications
working temperature:
-40℃~+85℃
Current Range:
16.7A;25A;33.3A;50A;100A
Voltage - Supply:
-11.4V~15.75V
Response Time (tr):
100ns
Sensitivity:
0.5mA/A
Bidirectional Current Detection:
Support
Mfr. Part #:
LAX 100-NP
Key Attributes
Model Number:
LAX 100-NP
Product Description
Product Overview
The LEM LAX SERIES is a closed-loop (compensated) current transducer utilizing Hall effect technology for the electronic measurement of DC, AC, and pulsed currents. It provides galvanic isolation between the primary and secondary circuits, featuring a low-profile design for simplified integration with power modules. The transducer offers multirange capability with a single device and is suitable for industrial applications.
Product Attributes
- Brand: LEM
- Certifications: UL508 - UR marking, EN 50178, IEC 61010-1
- Application Domain: Industrial
- Material: Isolated plastic case recognized according to UL 94-V0
Technical Specifications
| Parameter | Symbol | Unit | Mini | Typ | Maxi | Conditions |
| General Data | ||||||
| Primary nominal current rms | IPN | A | 16 | - | 100 | At 100 Apply derating according to fig. 2 and 3 |
| Primary current, measuring range | IPM | A | - | - | ±160 | * VC = ± 15 V ± 5% |
| Secondary nominal current rms | ISN | mA | - | 50 at 100 | - | At 100 |
| Supply voltage | VC | V | ±11.4 | ±15 | ±15.75 | - |
| Current consumption | IC | mA | - | 10 + IS | 12 + IS | - |
| Primary turns | NP | - | 1 | - | 3 | - |
| Measuring resistance | RM | Ω | - | 50 | - | Unless otherwise noted |
| Accuracy Data (at TA = 25°C, VC = ± 15 V, RM = 50 Ω, NP = 1 turn, high speed PCB design, unless otherwise noted) | ||||||
| Electrical offset current | IOE | µA | -150 | 0 | 150 | VC = full range |
| Electrical offset current | IOE | µA | -330 | - | 330 | - 25°C .. + 85°C, VC = full range |
| Electrical offset current | IOE | µA | -500 | - | 500 | * - 40°C .. + 85°C, VC = full range |
| Sensitivity | G | mA/A | - | 0.5 | - | - |
| Sensitivity error | εG | % | -0.47 | 0 | 0.47 | ± 100 A range |
| Sensitivity error | εG | % | 0.1 | 0.28 | - | ± 50 A range |
| Sensitivity error | εG | % | 0.11 | 0.32 | - | ± 100 A range, low speed 1 turn PCB design |
| Overall accuracy | XG | % | -0.91 | - | 0.91 | = IOE + εG + εL |
| Reaction time to 90% | tr | µs | - | 0.17 | - | dIP/dt = 100 A/µs, high and low speed PCB designs |
| Frequency bandwidth (typical) | BW | kHz | - | > 300 | - | IP = 25 A, -1 dB, 1 turn |
| Frequency bandwidth (typical) | BW | kHz | - | > 300 | - | IP = 12.5 A, -1 dB, 2 turns |
| Frequency bandwidth (typical) | BW | kHz | - | > 300 | - | IP = 8.3 A, -1 dB, 3 turns |
| Absolute Maximum Ratings | ||||||
| Primary AC current rms (3 primary jumpers in parallel) | IPN | A | - | - | 70 | up to 2 kHz (See figure 3) |
| Primary continuous direct current (3 primary jumpers in parallel) | IPN DC | A | - | - | 100 | up to TA = 50°C. Linear derating to 50 A at 85°C. (See figure 2) |
| Maximum supply voltage | VC | V | - | - | ± 20 | (not operating) |
| Maximum busbar temperature (jumper) | - | °C | - | - | 100 | - |
| Ambient operating temperature | TA | °C | -40 | - | 85 | - |
| Ambient storage temperature | TS | °C | -40 | - | 90 | - |
| Isolation Characteristics | ||||||
| Rms voltage for AC isolation test, 50 Hz, 1 min, between primary and secondary | Vd | kV | - | 3.5 | - | - |
| Impulse withstand voltage 1.2/50 µs | Vw | kV | - | 8 | - | - |
| Partial discharge extinction voltage rms @ 10pC | Ve | kV | > 1.3 | - | - | - |
| Creepage distance | dCp | mm | - | 8 | - | - |
| Clearance distance | dCI | mm | - | 8 | - | - |
| Comparative Tracking Index | CTI | V | - | 600 | - | - |
2410311225_LEM-LAX-100-NP_C3684269.pdf
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