Provides a 0.5VCC zero-current reference output, offering a more flexible application mode.  Wide measurement range, with 20A, 30A, 50A, and 65A ranges available.  1.2MHz chopping frequency, high bandwidth, low noise, single-ended analog output.  High isolation voltage, with 3200V (AC) safety isolation voltage between the lead wires and signal pins.  Low loss, lead wire resistance 0.45mΩ.  High bandwidth, up to 250kHz, step response time 1.2us.  Room temperature error 1%.  Good temperature stability, using Hall signal amplification circuit and temperature compensation circuit.  Differential Hall structure, strong resistance to external magnetic interference.  Strong resistance to mechanical stress, magnetic parameters will not shift due to external pressure.  ESD (HBM) 6kV. Applications:  Motor control  Load monitoring system  Switching power supply  Overcurrent fault protection

The CC6921 is a high-performance Hall effect current sensor that efficiently measures DC or AC current. It features high accuracy, excellent linearity, and temperature stability, making it widely applicable in industrial, consumer, and communication equipment. The CC6921 integrates a high-precision, low-noise linear Hall circuit and a low-impedance main current conductor. The 0.45mΩ low-impedance conductor minimizes power loss and heat dissipation. The inherent internal insulation provides a basic operating isolation voltage of 1000VRMS and an insulation withstand voltage of 3200V (AC) between the input current path and the secondary circuit. The linear Hall circuit is manufactured using an advanced BiCMOS process and includes a high-sensitivity Hall sensor component, a Hall signal preamplifier, a common-mode magnetic field suppression circuit, a temperature compensation unit, an oscillator, a dynamic offset cancellation circuit, and an amplifier output module. With no current, the static output is 50%VCC. With a 5V supply voltage, the output linearly changes between 0.2~4.8V with the magnetic field, achieving linearity up to 0.1%. The integrated differential common-mode rejection circuit in the CC6921 ensures that the chip output is not affected by external interfering magnetic signals; the integrated dynamic offset cancellation circuit ensures that the chip's sensitivity is not affected by external pressure and chip packaging stress. The CC6921 is available in a SOP16W package, operates within a temperature range of -40°C to +125°C, and complies with RoHS regulations.