LTS 15-NP LEM Integrated Circuit (Other) In Stock
LEM LTS 15-NP is a closed-loop Hall-effect current sensor measuring 0 to ±48 A with high accuracy, galvanic isolation, and fast response, designed for motor drives, inverters, and power conversion systems requiring precise current measurement.
- Manufacturer
- LEM
- Package
- Other
- Pin Count
- 9
- Lifecycle
- ACTIVE
- Datasheet
- LTS 15-NP Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTS 15-NP?
- Closed-loop Hall-effect technology measuring 0 to ±48 A with high linearity
- Galvanic isolation between primary current path and signal output for safety
- Fast response time enabling real-time overcurrent protection and control loops
- Compact PCB-mount package suitable for space-constrained power electronics designs
What is LTS 15-NP used for?
The LTS 15-NP closed-loop current sensor is designed for precision current monitoring in variable-speed motor drives, solar inverters, and UPS systems handling up to ±48 A. Its galvanic isolation and fast dynamic response make it ideal for feedback control in servo amplifiers, power factor correction circuits, and battery management systems where accurate real-time current measurement is critical for both performance and safety.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
What are equivalent replacements for LTS 15-NP?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LTS 15-NP's closed-loop topology improve measurement accuracy compared to open-loop sensors at ±48 A?
The LTS 15-NP uses closed-loop compensation to null the core flux, achieving typical accuracy better than 0.5% of the ±48 A nominal range. This approach eliminates offset drift and provides linearity error below 0.1%, making it far more accurate than open-loop sensors for servo drives and precision power conversion requiring stable current feedback over temperature.
Which motor drive or inverter topologies benefit most from integrating the LTS 15-NP at the ±48 A range?
Three-phase BLDC motor drives, H-bridge servo amplifiers, and grid-tied solar inverters rated up to 48 A phase current gain the most from the LTS 15-NP. Galvanic isolation protects low-voltage control circuits from high-voltage bus rails, while the sensor's bandwidth of several kHz supports PWM switching frequencies above 10 kHz without measurement lag.
What power supply voltage does the LTS 15-NP require and how does it affect system integration?
The LTS 15-NP typically operates from a ±15 V dual supply, which is standard in industrial motor drive and inverter platforms. This allows direct integration alongside op-amp circuits and DSP analog inputs without additional level shifting, simplifying PCB design for ±48 A current sensing in industrial control systems.
How does the LTS 15-NP compare to shunt-based current sensing for overcurrent protection in battery systems?
Unlike a shunt resistor that dissipates I²R power (e.g., 0.23 W at 48 A through a 0.1 mΩ shunt), the LTS 15-NP provides galvanic isolation and introduces virtually no resistive loss in the primary conductor. For battery management systems requiring both isolation and accurate ±48 A bidirectional current measurement, the LTS 15-NP eliminates common-mode voltage issues present in shunt-based designs.
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