LV25-P/SP10,LV 25-P/SP10

‌LV25-P/SP10 Product Description: A High-Reliability Solution for Medium-Low Voltage Sensing

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LV25-P/SP10 ‌Key Features‌
Closed-loop Hall magnetic flux balance technology employs dynamic zero-flux feedback between primary and secondary currents to achieve complete electrical isolation, eliminating common-mode interference and drift for pristine, stable output signals;
High-precision linear measurement maintains total error within ±0.8% across full temperature range, with linearity better than 0.8%, accurately reconstructing DC, AC, and slow-varying pulse voltage waveforms in the 10V–500V range to meet stringent industrial control fidelity requirements;
User-configurable range design allows flexible voltage scaling from 10V to 500V via an external sense resistor R1—no sensor replacement needed, significantly reducing design redundancy and inventory complexity;
Compact PCB surface-mount architecture features a dual-pin Φ1mm primary connection and standard 3-pin secondary interface, enabling direct soldering onto control boards, optimizing thermal stress distribution, and enhancing vibration resistance and long-term reliability;
Industrial-grade safety certification with UL94-V0 flame-retardant housing and operational temperature range of -25℃ to +70℃, ensuring continuous stable performance in harsh environments with high humidity, dust, and electromagnetic interference.

LV25-P/SP10 ‌Technical Specifications‌

‌Rated primary current‌: 10 mA RMS (for 10–500 V range, set by external R1 resistor)

‌Rated secondary current‌: 25 mA RMS

‌Supply voltage range‌: ±12 V to ±15 V DC (bipolar supply)

‌Bandwidth‌: DC to 10 kHz

‌Isolation voltage‌: 2.5 kV AC (compliant with EN50178 industrial safety standard)

‌Temperature drift‌: ±0.35 mA (full range: -25℃ to +70℃)

‌Operating temperature range‌: -25℃ to +70℃

‌Response time‌: <40 μs

‌Linearity error‌: <0.8%

‌Zero offset current‌: ±0.15 mA (@25℃)

‌Package type‌: PCB surface-mount, primary: dual-pin Φ1mm terminals, secondary: 3-pin plug-in interface

‌Conversion ratio‌: 2500:1000 (primary current : secondary current)

‌Flame rating‌: UL94-V0 engineering plastic housing, meeting fire safety requirements for high-risk equipment

LV25-P/SP10 ‌Applications‌
Optimized for medium-low voltage, medium-low frequency power electronics systems, widely deployed in closed-loop control applications demanding long-term stability and reliability:

‌Medium-power photovoltaic inverters‌: Enables closed-loop DC bus voltage sampling to enhance MPPT tracking accuracy and improve energy harvest under partial shading and irradiance fluctuations;

‌Battery Management Systems (BMS)‌: Supports precise single-cell or pack voltage monitoring in 48V–400V battery configurations, enabling high-accuracy cell balancing and overvoltage protection to extend cycle life;

‌Industrial automation control modules‌: Delivers stable feedback signals to PLCs, servo drives, and DC/DC converters, improving loop dynamics and system disturbance rejection;

‌Uninterruptible Power Supplies (UPS)‌: Provides high-accuracy closed-loop input/output voltage feedback for intelligent bypass switching and battery charge/discharge management, enhancing system availability;

‌Power tools and light-duty electric vehicle controllers‌: Delivers compact, high-precision voltage sensing in space-constrained designs, ensuring operational safety and energy efficiency optimization.

‌Why Choose LV25-P/SP10 This Model‌
As a global benchmark in industrial sensing, LEM has infused over four decades of closed-loop Hall technology expertise into the LV25-P/SP10, making it the preferred solution for applications demanding a balanced blend of precision, stability, and cost-efficiency;
Compared to open-loop alternatives, this model delivers three core advantages: zero long-term drift, factory-calibrated out-of-box, and zero maintenance requirements—significantly reducing total cost of ownership over the system lifecycle;