The CC6923 is a high-performance Hall effect current sensor that can more effectively measure DC or AC current. It features high accuracy, linearity, and good temperature stability, and is widely used in industrial, consumer, and communication equipment. The CC6923 integrates a high-precision, low-noise linear Hall circuit and a low-impedance main current conductor. The input current flows through the internal 0.3mΩ conductor, and the magnetic field generated induces a corresponding electrical signal on the Hall circuit. This signal is then processed by the internal circuit to output a voltage signal, making the product easy to use. The low-impedance conductor minimizes power loss and heat dissipation, and the internal inherent insulation provides a 5000VRMS insulation voltage between the input current path and the secondary circuit. The chip is manufactured using an advanced BiCMOS process and includes a differential Hall sensor, chopper amplifier, variable gain amplifier, output polarity/sensitivity/offset/common mode rejection interface, oscillator, filter, zero-point reference output, overcurrent output, and amplifier buffer output, etc. The sensor uses linear Hall sensor temperature compensation technology and has high temperature stability. The integrated differential common-mode rejection circuit in the CC6923 allows the chip output to be unaffected by external interference magnetic signals; the integrated dynamic offset elimination circuit ensures that the chip's sensitivity is not affected by external pressure and chip packaging stress. Another advantage of the CC6923 is the design of a fast fault monitoring function with an open-drain output, which is very suitable for overcurrent fault detection. This function is flexible in fault detection and greatly simplifies the circuit board application layout. The CC6923 is available in a SOP16W package, with an operating temperature range of -40 to +125°C, and complies with RoHS regulations.

• Wide measurement range, with multiple ranges available: 20A, 30A, 40A, 50A, 65A, 75A, 100A, 125A, 150A
• Overcurrent point VOC_F is user-settable, with low-latency fault alarm output xFAULT
• Low noise, single-ended analog output; High isolation voltage, with 5000VRMS safety isolation voltage between the wire pins and signal pins
• Low loss, wire resistance 0.3mΩ
• High bandwidth, up to 250kHz, step response time 1.2us
• Room temperature error 1%, error ±3% across the full temperature range
• Good temperature stability, using Hall signal amplifier 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
• Fixed sensitivity output
• ESD (HBM) 4kV, ESD(CDM)1kV, LU 500mA

Applications

• Motor control
• Load monitoring system
• Switching power supply
• Overcurrent fault protection
• OBC
• Photovoltaic inverter