HSW - Battery Management System Sensors
The HSW Series excels in accurately measuring DC and AC currents in high-power, high-voltage automotive environments, featuring robust galvanic isolation between the primary (high power) and secondary (electronic) circuits.
With the HSW current transducers, you have the flexibility to select various current measuring ranges within the same housing, ranging from ±50 to ±400 A, or opt for dual output for redundancy in measurement.
HSW sensors designed for battery management systems (BMS) boast compact dimensions and outstanding performance.
Compared to competitors, HSW sensors represent the pinnacle of LEM Hall ASIC design, offering exceptional precision, minimal offset, and non-invasive (isolated and lossless) measurement capabilities. They are easy to install on busbars using clipping fixations and are automotive qualified, ensuring reliability and durability in automotive applications.
HSW sensors operate as open-loop transducers, leveraging a Hall effect integrated circuit tailored for demanding high-power, high-voltage automotive environments.
HSW – Features and benefits
Features
- Single / Dual Hall Effect open loop sensor with single core
- Independent dual range: High Range channel up to: +/- 1000A
- High compactness with sensor
- Low voltage application
- Unipolar +5 V DC power supply
- Primary current measuring range up to ±200 A
- Operating temperature range: −40 °C < T < +85 °C
- Output voltage: full ratio-metric (in sensitivity and offset)
- Over / Under Current detection
- Reverse supply voltage protection
- Ground open circuit
Benefits
- Very high accuracy < 0,9A error up to 100A range over T°C
- Guarantee for low range measurements
- Good linearity
- Very low magnetic offset < 70mA
- Low thermal offset drift
- Low thermal sensitivity drift
Typical applications
The HSW sensor series is ideally suited for a range of automotive applications, including:
- Battery Management Systems (BMS)
- Redundant measurement with 2 independent channels
- Battery pack monitoring
- Hybrid vehicles
- EV and utility vehicles
LEM HSW – Download & Technical Characteristic
HSW Sensors – ASK FOR SAMPLES / QUOTATIONS
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