Closed Loop Hall Effect Current Sensor HBC

FERRTX Closed Loop Hall Effect Current Sensor｜100kHz Bandwidth & ±0.5% Accuracy

CMOS-Compatible Design for EV/Power Electronics

Precision Current Sensing Revolution

The FERRTX Closed Loop Hall Effect Current Sensor sets new standards with 100kHz bandwidth and μA-level resolution, overcoming limitations of traditional DC Current Sensors. Leveraging magnetic compensation technology, it delivers ±0.5% linearity from 50mA to 500A – outperforming AC Current Sensors in dynamic response. With 4.5-5.5V CMOS-compatible operation, it consumes 60% less power than lem split core current sensor solutions while fitting 15×15mm PCB areas.

Breakthrough Engineering Advantages

• Zero-Drift Closed Loop Core
  Nullifies temperature effects (-40°C to +125°C operation)

• 3× Wider Bandwidth
  100kHz vs. 30kHz in standard current sensor hall effect designs

• Galvanic Isolation
  3.8kV dielectric strength (IEC 62368-1 certified)

• EMC Hardened
  Immune to 100A/μs dv/dt noise in motor drives

Critical Performance Parameters

▸ Bandwidth: DC–100kHz (captures IGBT switching transients)
▸ Accuracy: ±0.5% @ 25°C, ±1.5% full temp range
▸ Supply Voltage: 4.5V–5.5V (CMOS/TTL compatible)
▸ Response Time: <1μs
▸ Isolation: 3.8kV RMS/1min

Target Applications

Electric Vehicles
・OBC leakage current detection
・Traction inverter phase monitoring
・BMS current profiling (±0.5% SOC accuracy)

Renewable Energy
・PV string fault diagnostics
・Wind turbine pitch control
・ESS bidirectional current sensing

Industrial Automation
・Servo drive overload protection
・PLC analog input modules
・Robotics joint current feedback

Consumer Electronics
・UPS inrush current limiting
・Drone battery management
・Fast charger output regulation