1. One-Sentence Description
The HAH3DR 800-S06 is a high-precision and high-reliability three-phase open-loop Hall current sensor for new energy vehicles and industrial applications. It supports DC, AC, and pulsed current measurement with a range covering ±200A to ±900A, specially designed for high-voltage and high-current detection scenarios.
2. Core Features
- Open-Loop Hall Effect Technology: No secondary coil is required, featuring a simple structure, low cost, and strong anti-interference capability.
- Wide Range Coverage: Single package supports current detection from ±200A to ±900A, adapting to various power requirements.
- Low Voltage Power Supply: Only +5V DC single power supply is needed, compatible with vehicle low-voltage systems.
- High Isolation Performance: Electrically isolates the primary (high-voltage) and secondary (electronic) circuits to ensure system safety.
- Non-Sealed Design: Suitable for non-extremely humid environments, facilitating installation and maintenance.
- Compact Package: Made of plastic shell (PBT-GF30 material), weighing only 137g±5% for easy integration.
3. Core Technical Indicators
| Category | Parameter | Typical Value/Range | Conditions |
| Electrical Performance | Sensitivity | 2.5 mV/A (@5V) | UC=5V, TA=25℃ |
| Zero Output Voltage (U₀) | 2.5 V ±6 mV | UC=5V, TA=25℃ | |
| Bandwidth (-3dB) | 40 kHz | ||
| Accuracy and Stability | Linearity Error | ±1% | IP=IPN, TA=25℃ |
| Thermal Zero Drift | ±0.08 mV/℃ | TC-UOEAV | |
| Response Delay | ≤6 μs (di/dt=100A/μs) | ||
| Environmental Adaptability | Operating Temperature | -40℃ to +125℃ | |
| Storage Temperature | -50℃ to +125℃ | ||
| Mechanical Characteristics | Protection Level | IPxx (non-sealed) | |
| Mass | 137g ±5% |
4. The Story Behind the Chip: Industrial Application Innovation of Hall Effect
The HAH3DR series is based on the Hall effect principle, whose core is to achieve non-contact measurement by using the interaction between magnetic fields and currents. When the measured current (IP) passes through a conductor, a magnetic field (B∝IP) is generated. The Hall element converts the magnetic field into a voltage signal (UH∝B), which is amplified and then outputs a voltage proportional to the current. Compared with traditional closed-loop sensors, the open-loop design eliminates compensation coils, reducing power consumption and volume, but relies on external circuit calibration to improve accuracy.
5. Design Philosophy: Balancing Performance and Cost
- Modular Three-Phase Integration: Single package supports three-phase current detection, simplifying wiring and system design.
- Anti-Interference Optimization: Built-in RC filter (optional), ESD protection (HBM 8kV), and electromagnetic compatibility (EMC) design to adapt to harsh automotive electromagnetic environments.
- Thermal Management Consideration: Copper alloy gold-plated terminals and compression limiter design reduce contact resistance and thermal resistance to ensure high-temperature stability (up to 125℃).
- Usability Priority: Non-waterproof connectors and standardized Molex interfaces balance installation efficiency and reliability.
6. Application Scenarios
- New Energy Vehicles: Battery management systems (BMS) and motor drive inverters for electric vehicles (EV)/hybrid electric vehicles (HEV).
- Power Conversion: Current monitoring of DC/DC converters and on-board chargers (OBC).
- Industrial Drives: Real-time current feedback control for frequency converters and servo systems.
- Renewable Energy: Current detection for photovoltaic inverters and energy storage systems.
7. Unique Advantages
- Extreme Cost-Effectiveness: The open-loop architecture significantly reduces production costs while maintaining ±1% high linearity and ±0.6% ratio accuracy.
- Ultra-Low Thermal Drift: Thermal zero drift is only ±0.08 mV/℃, ensuring wide-temperature stability (-40℃ to +125℃).
- High-Speed Response: 4μs delay time (100A/μs slope) to meet the needs of high-frequency switching scenarios.
- Flexible Configuration: Supports multi-range selection (±200A to ±900A) to adapt to different power 等级 (power ratings) of equipment.
8. What Engineers Must Know for Selection
Key Parameter Matching:
- Range Selection: Determine the model according to the system’s maximum current (IPN) (e.g., HAH3DR 800-S06 corresponds to ±800A).
- Bandwidth Requirements: For high-frequency applications, pay attention to the 40kHz cutoff frequency to avoid signal distortion.
- Thermal Design: The primary conductor (busbar) must meet the temperature rise limit (T<+150℃), and heat dissipation space is recommended.
Installation Notes:
- Wiring torque ≤2 N·m to avoid damaging terminals; compression limiters and gaskets are recommended.
- Avoid strong external magnetic field interference and add magnetic shielding measures if necessary.
- Certification and Compatibility: Compliant with automotive standards such as GMW3172 and ISO 16750, supporting ESD (HBM 8kV) and vibration tests.
Conclusion: The HAH3DR 800-S06 is an ideal choice for current detection in new energy vehicles and industrial automation due to its high precision, wide-temperature stability, and compact design. Engineers should comprehensively consider range, bandwidth, and thermal management according to specific scenario requirements to achieve optimal system performance.
Contact:
Sylvia Xu | ECSource Components Co.,Limited
Top 10 Test Laboratory Distributors in Asia.
D-U-N-S Number:655918890 | ISO90001 Certificated Company
Phone/Whatsapp: 0086-19806586673
Email:sylvia@ecsource.net
Line Card : FPGA, RF, MEMORY,CONNECTOR,Power
