ACS758LCB-100U-PFF-T
Overview
The ACS758LCB-100U-PFF-T is a high-accuracy, ratiometric Hall effect linear current sensor designed for unidirectional DC current sensing up to 100A. It features a monolithic Hall IC coupled with a 100 micro-ohm internal conductor, providing galvanic isolation and ultra-low power loss for high-current power electronics. The device is AEC-Q100 qualified, making it suitable for demanding automotive and industrial environments requiring high reliability and thermal endurance.
Why Choose This Part
The integrated shield significantly reduces capacitive coupling from the current conductor to the die, ensuring low noise and stable output even in high-voltage switching environments. Its 4us response time and 120kHz bandwidth allow for fast fault detection, while the factory-programmed offset and gain trim provide a total accuracy of +/-2.4 percent over the operating temperature range of -40C to 150C.
Applications
Key Specifications
Getting Started
To evaluate this sensor, provide a stable 3V to 5.5V supply to VCC and connect the primary current path to the high-current PFF leads. The output is ratiometric (40mV/A at 5V VCC), so use a high-resolution ADC with a reference tied to the same VCC supply to minimize measurement error. Ensure the PCB layout includes sufficient copper area around the current terminals to manage thermal dissipation at 100A continuous loads.
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