HAH3DR1000-S07,HAH3DR 1000-S07

‌HAH3DR1000-S07 Product Description

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‌HAH3DR1000-S07 Product Overview‌
The HAH3DR1000-S07 is an automotive-grade open-loop Hall effect current sensor developed by LEM, engineered for high-precision, non-contact measurement of DC, AC, and pulsed currents in electric vehicles and high-power industrial systems. Leveraging proven Hall effect technology, it provides galvanic isolation between the primary current path and the secondary output circuit, ensuring stable, linear voltage output even under intense electromagnetic interference. Its compact disc-shaped design enables direct press-fit integration onto standard busbars without circuit interruption, significantly enhancing installation efficiency and system safety—making it the ideal sensing core for modern traction inverters and motor control systems.

‌HAH3DR1000-S07 Key Features‌

‌Automotive-Grade Reliability‌: Fully certified for harsh environmental conditions, operating reliably from -40°C to +125°C with zero drift, and compliant with ISO 26262 functional safety requirements.

‌Ratiometric Voltage Output‌: Delivers a 2.5 V ± 2 V output proportional to the supply voltage, automatically compensating for power supply variations—eliminating the need for external voltage regulation or bias circuits.

‌Ultra-Fast Dynamic Response‌: Achieves a response time of just 6 µs with a 40 kHz bandwidth, enabling precise capture of transient currents during SiC/GaN switching events, critical for high-speed overcurrent protection and closed-loop control.

‌Contactless Disc Mounting‌: Features an integrated press-fit design compatible with standard busbar thicknesses, removing the need for soldering or mechanical fasteners, reducing assembly errors, and improving production yield.

‌Superior EMI Immunity‌: Incorporates multi-layer magnetic shielding and a high-PSRR proprietary ASIC to suppress external noise and power supply ripple from inverters and motor drives, ensuring clean, noise-free signal output.

‌HAH3DR1000-S07 Technical Specifications‌

Rated Current: 1000 A (DC / AC / Pulse)

Measurement Range: ±1000 A

Output Signal: Ratiometric voltage, 2.5 V ± 2 V (@ 5 V supply)

Sensitivity: 1.82 mV/A

Supply Voltage: 5 V DC (±5% tolerance)

Bandwidth: 40 kHz (-3 dB)

Response Time: 6 µs

Linearity: ±2%

Accuracy: ±2.9% (over full temperature range)

Operating Temperature: -40 °C to +125 °C

Isolation Voltage: Up to 600 V working voltage, compliant with IEC 61800-5-1

Mounting Method: Disc-type busbar mount

Current Consumption: Max 60 mA

‌HAH3DR1000-S07 Applications‌

‌EV Traction Inverters‌: Real-time monitoring of three-phase motor currents for precise torque control, regenerative braking, and fault diagnostics—natively compatible with Infineon HybridPACK™ modules.

‌On-Board Chargers (OBC)‌: Accurate measurement of DC-side charge/discharge currents to enforce battery safety boundaries and meet stringent automotive EMC and thermal cycling requirements.

‌Renewable Energy Storage Systems (PCS)‌: Enables DC bus current feedback for battery balancing, grid interaction protection, and optimized power scheduling.

‌High-Power Industrial Drives‌: Enhances dynamic response in large-scale inverters, reducing torque ripple and improving energy efficiency for heavy-duty motors and servo systems.

‌Electric Construction Machinery & Rail Transit‌: Designed to withstand high vibration, wide temperature swings, and strong electromagnetic environments, ensuring long-term operational stability and system availability.

‌HAH3DR1000-S07 Why Choose This Model‌
Among current sensing solutions, the HAH3DR1000-S07 stands out with its architecture meticulously optimized for 1000A automotive applications. Unlike shunt resistors, it eliminates series voltage drop and thermal losses, preventing measurement drift due to self-heating. Compared to closed-loop sensors, it offers a simpler structure, lower power consumption, and faster response—without the complexity of feedback loops—significantly enhancing system robustness. Its native compatibility with Infineon HybridPACK™ modules drastically reduces development time and integration risk. LEM’s proprietary ASIC calibration technology ensures long-term stability of zero-point and sensitivity over 100,000 hours of operation, delivering true “select once, lifetime reliable” performance. For customers prioritizing reliability, time-to-market, and low total cost of ownership, the HAH3DR1000-S07 is not merely a sensor—it is the foundation of system performance.