Description
The HW-525 ACS758 100A Hall Effect Linear Current Sensor Module is a high-precision, bidirectional current sensing module based on the ACS758LCB-100B-PFF-T Hall-effect IC. It is designed to measure both AC and DC currents up to ±100A while providing electrical isolation between the measured current path and the control circuitry.
The module uses Hall-effect sensing technology for non-intrusive current measurement without requiring a direct electrical connection between the sensing circuit and the measured signal. Its ratiometric analog voltage output changes proportionally with the current flowing through the conductor.
The module is suitable for applications including motor control, power monitoring, inverters, battery management systems, and overcurrent protection circuits.
Specifications
- Model: ACS758LCB-100B-PFF-T
- Current Range: ±100A (bidirectional)
- Sensor Type: Hall Effect, Open Loop
- Supply Voltage: 3.0–5.5V
- Output Type: Ratiometric Analog Voltage
- Sensitivity: Approximately 40mV/A
- Accuracy: ±2% typical
- Bandwidth: Up to 120kHz
- Response Time: Approximately 4µs
- Current Consumption: Maximum 13.5mA
- Operating Temperature: -40°C to +150°C
- Internal Conductor Resistance: Approximately 100µΩ
- Output Offset Voltage: VCC/2 at zero current
- Isolation: High, Hall-effect based
- Dimensions: Approximately 38 × 18mm
Key Features
- Measures both AC and DC current.
- Supports bidirectional current sensing for positive and negative current.
- High-accuracy analog output with low noise.
- Provides electrical isolation between the load and control circuit.
- Fast response time in the microsecond range.
- Built-in temperature compensation for stable measurements.
- Integrated shielding helps reduce noise and interference.
- Low power consumption.
- Compact module design for easy integration and mounting.
- Compatible with 3.0–5.5V microcontroller systems.












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