LPSR Series
Advanced closed‑loop Hall sensing that brings Fluxgate‑like accuracy in a simpler, more economical solution.
LPSR - Current Sensors
The LPSR Series current sensors are tailored for small‑current measurement with integrated protection functionality. Designed for DC, AC, and pulsed current sensing up to 50A, LPSR parts rely on closed‑loop Hall‑effect technology with an integrated primary conductor and reference voltage access.
A key differentiator of the LPSR Series is its overcurrent detection output, allowing direct monitoring of abnormal current conditions at system level. The 4‑pin primary footprint increases creepage and clearance distances to 9.9 mm, supporting high insulation requirements. These features make the LPSR Series especially suitable for industrial power and control applications where both measurement and protection are critical.
LPSR – Features and benefits
Main characteristics
- Closed loop multi-range current transducer
- Voltage output
- Unipolar supply voltage
- Compact design for PCB mounting
- Overcurrent detect at 4.1 × I P N.
- Cost attractive
- PCB mounting in various footprints (3 or 4 primary pins with various layouts)
- With integrated primary conductors
- Compact design
- High overall accuracy at +105°C up to 2%
Benefits
- Very low offset drift
- Very good dv/dt immunity
- Fast response time <0.4 µs
- Reference pin with two modes: Ref IN and Ref OUT
- Extended measuring range for unipolar measurement
Typical applications
LPSR products are engineered for industrial use, fulfilling a range of functions across various applications:
- 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
- Solar inverters
LEM LPSR – Download & Technical Characteristic
| Product | Check stock | Document | Nominal value | Secondary Nominal Signal Value | Op. Temperature |
|---|---|---|---|---|---|
| LPSR 6-NP | Datasheet 3D | 6 A | 2.5 +/- 0.625 V | -40 to 105 °C | |
| LPSR 15-NP | Datasheet 3D | 15 A | 2.5 +/- 0.625 V | -40 to 105 °C | |
| LPSR 25-NP | Datasheet 3D | 25 A | 2.5 +/- 0.625 V | -40 to 105 °C | |
| LPSR 50-NP | Datasheet 3D | 50 A | 2.5 +/- 0.625 V | -40 to 105 °C | |
| LPSR 50-NP/SP2 | Datasheet 3D | 50 A | 2.5 +/- 0.625 V | -40 to 105 °C |
LPSR Sensors – ASK FOR SAMPLES / QUOTATIONS
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