HC5FW
PCB mounting automotive current sensor with high compactness +/-900A . Suitable for mid to high power motor control applications.
HC5FW - Automotive current sensors
The HC5FW automotive current sensors are exceptionally well-suited for measuring both DC link current and phase current in motor control applications, particularly in automotive xEVs' traction inverters.
These sensors utilize open-loop Hall-based LEM current sensor technology, enabling them to measure the magnetic field produced by the primary current flowing through a busbar inserted into the sensor slot. They then deliver an output voltage that is proportionate to the primary current, all while ensuring galvanic isolation.
The precise assembly and calibration of a magnetic core designed by LEM, combined with a proprietary ASIC developed by LEM, result in these HC5FW sensors delivering outstanding performance and accuracy, making them highly reliable for demanding motor control applications.
HC5FW – Features and benefits
Features
- Hall Effect sensor, open loop based
- Low voltage application
- Unipolar +5 V DC power supply
- Primary current measuring range up to ±100 A
- Maximum RMS primary current limited by the busbar, the magnetic core or the ASIC temperature T° < + 150 °C
- Operating temperature range: - 40° C < T° < + 125°C
- Output voltage: full ratiometric (sensitivity and offset)
- High speed sensor
Main characteristics
- Good accuracy
- Good linearity
- Low thermal offset drift
- Low thermal sensitivity drift
Typical applications
The HC5FW automotive sensor family is precisely engineered for automotive applications, showcasing versatility across various scenarios within this domain, including:
- Electrical Power Steering
- Starter Generators
- Converters
HC5FW and its highly flexible design
In the typical configuration of inverters, which often involve a vertical arrangement of a cooling jacket, power module, and gate driver board, HC5FW sensors can be conveniently mounted flat directly on the gate driver board. This positioning allows them to measure the current flowing through the busbar via the PCB, connecting the power module to the motor connector.
The round aperture of these sensors is designed to accommodate both rectangular and round busbars, providing flexibility in busbar design. Moreover, the inclusion of a sleeve underneath the sensor package, extending through the PCB, serves to isolate the busbar and ensures compliance with high voltage isolation requirements.
HC5FW sensors are available in through-hole (THD) configurations.
LEM HC5FW – Download & Technical Characteristic
| Product | Document | Primary nominal RMS voltage |
Package size | PCB connection |
Insulation voltage |
Creepage |
|---|---|---|---|---|---|---|
| HC5FW 100-S | 100 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 7.1 mm, PLC1, PLC0 on cover |
|
| HC5FW 100-S/SP1 | 100 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 3.6 mm PLC1 | |
| HC5FW 200-S | Datasheet | 200 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 7.1 mm, PLC1, PLC0 on cover |
| HC5FW 200-S/SP1 | Datasheet | 200 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 3.6 mm PLC1 |
| HC5FW 300-S | Datasheet | 300 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 7.1 mm, PLC1, PLC0 on cover |
| HC5FW 300-S/SP1 | Datasheet | 300 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 3.6 mm PLC1 |
| HC5FW 400-S | Datasheet | 400 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 7.1 mm, PLC1, PLC0 on cover |
| HC5FW 400-S/SP1 | Datasheet | 400 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 3.6 mm PLC1 |
| HC5FW 500-S | Datasheet | 500 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 7.1 mm, PLC1, PLC0 on cover |
| HC5FW 500-S/SP1 | Datasheet | 500 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 3.6 mm PLC1 |
| HC5FW 600-S | Datasheet | 600 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 7.1 mm, PLC1, PLC0 on cover |
| HC5FW 600-S/SP1 | Datasheet | 600 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 3.6 mm PLC1 |
| HC5FW 700-S | Datasheet | 700 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 7.1 mm, PLC1, PLC0 on cover |
| HC5FW 700-S/SP1 | Datasheet 3D |
700 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 3.6 mm PLC1 |
| HC5FW 800-S | Datasheet 3D |
800 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 7.1 mm, PLC1, PLC0 on cover |
| HC5FW 800-S/SP1 | Datasheet | 800 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 3.6 mm PLC1 |
| HC5FW 900-S | Datasheet | 900 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 7.1 mm, PLC1, PLC0 on cover |
| HC5FW 900-S/SP1 | Datasheet | 900 A | 33.75 x 27.5 x 12 mm | Through Hole (THD) | 2.5 kV | 3.6 mm PLC1 |
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