
HSNBV-D03 Open-Loop Hall Effect Current Sensor — Precision Current Sensing for Intelligent Electric Vehicles
The HSNBV-D03 is an open-loop Hall effect current sensor developed by LEM, a global leader in electrical measurement, specifically for high-power automotive systems including Battery Management Systems (BMS), electric motor inverters, and DC-DC converters. Designed for dual-range operation (700 A / 200 A), it delivers isolated, proportional voltage output under a single +5 V supply. With its compact PCB-mountable design, extended operating temperature range (-40°C to +125°C), and ultra-low non-linearity, the HSNBV-D03 ensures reliable, high-fidelity current measurement in the most demanding EV environments — making it the sensor of choice for next-generation automotive energy systems.
Extended Operating Temperature: -40°C to +125°C — Fully qualified for deployment in engine compartments, battery packs, and under-hood electronics without external thermal management
Single +5 V Supply Voltage — Direct compatibility with automotive MCUs and analog front-end (AFE) ICs, simplifying power architecture and reducing BOM complexity
Enhanced EMI Immunity — Integrated magnetic shielding and differential output architecture suppress noise from motors, inverters, and switching power supplies
AEC-Q100 Qualified Design — Built to meet automotive reliability standards; materials, processes, and testing protocols align with ISO/TS 16949 and IATF 16949 requirements
|
Parameter |
Specification |
|
Rated Current |
700 A (High Range) / 200 A (Low Range) |
|
Measurement Range |
±1000 A (Peak) |
|
Output Signal |
Proportional Voltage (0.5 V – 4.5 V @ 5 V Supply) |
|
Linearity |
≤ ±0.1% |
|
Response Time |
≤ 300 ns |
|
Supply Voltage |
+5 V DC (Single Supply) |
|
Operating Temperature |
-40°C to +125°C |
|
Isolation Voltage |
≥ 3 kV RMS |
|
Zero-Point Drift |
< ±5 mV (25°C, 24 h) |
|
Power Consumption |
≤ 9 mA (Typical) |
|
Mounting Type |
PCB Through-Hole (Disc-Style) |
|
Enclosure Protection |
IP67 (Internal Sealing) |
|
Compliance |
Designed to AEC-Q100 Automotive Grade Standards |
Battery Management Systems (BMS) — Accurate monitoring of pack charge/discharge currents for SOC/SOH estimation and overcurrent protection
Electric Drive Inverters — Real-time phase current feedback for vector control and fault diagnostics
Onboard Chargers (OBC) — Input/output current sensing in AC/DC conversion stages
DC-DC Converters — Monitoring high-to-low voltage conversion loops for stable low-voltage rail regulation
Thermal Management Systems — Tracking current draw of PTC heaters and coolant pumps
ADAS Domain Controllers — Ensuring safe power delivery to high-performance AI processors
The HSNBV-D03 is currently being evaluated and adopted by Tier-2 suppliers for EV platforms from BYD, NIO, and XPeng as a high-performance, cost-optimized alternative to traditional shunt-based solutions.
Why Choose the HSNBV-D03?
Choosing the HSNBV-D03 means choosing:
Reduced Component Count — One sensor replaces two single-range units, cutting PCB area and assembly cost
Faster Time-to-Market — Standard +5 V interface enables rapid BMS prototyping without custom power design
| Our advantage is that we not only low prices, but we more suited to you. Our Keywords is New and original parts Fast Delivery Instock & available Short Leadtime 30-Days returns ISO9001 Certification 1 Year Warranty |
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