سنسور و مبدل سنسور جریان

Product Attributes

Introduction

The CC6924 device is a high-performance Hall-effect current sensor that can measure DC or AC current more efficiently, and has the advantages of high accuracy, excellent linearity and temperature stability in industrial, consumer, and communication equipment. The CC6924 device consists of a high-precision, low-noise linear Hall integrated circuit and a low-resistance main current conductor. Internal copper conductor’s resistance is typical 0.3mΩ which provides much less power loss than the universal resistor sampling method. Otherwise, its internal inherent insulation provides 5000VRMS (AC) insulation withstand voltage between the input current path and the secondary circuit. The sensor adopts linear Hall sensor temperature compensation technology, which has high temperature stability characteristics. The differential common-mode suppression circuit integrated in CC6924 can make the chip output unaffected by external interference magnetic signals. The integrated dynamic offset elimination circuit makes the sensitivity of the chip independent of external stress and chip packaging stress. CC6924 is available in SOP16W package. It’s operating ambient temperature range is -40 - 125℃. Comply with RoHS requirements.

Features

• Built-in VREF Output，External VREF Input:
  • Built-in VREF Output: VOE is programmable to < 5mV
  • External VREF Input: VOUT quiescent output voltage is consistent with it
• Measuring current range: 20A, 30A, 40A, 50A, 65A, 75A, 80A, 100A, 125A, 150A, 200A
• Low noise，Single-end analog output
• High isolation and withstand voltage (5000VRMS isolation voltage between pins 1-8 and 9-16)
• VWVBI=1500VRMS; VWVRI=750VRMS
• Less power loss, internal conductor’s resistance is 0.3mΩ
• High bandwidth, up to 250kHz, 1.2μs output rise time in response to step input current
• Room temperature error ±1%, sensitivity temperature drift up to ±2.5%.
• 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 be offset by external pressure
• ESD (HBM) 6kV, ESD(CDM) 2kV, LU 500mA

Applications

• Motor controller
• Load detection and management
• Switch-mode power supplies
• Over-current fault protection
• PV inverter
• New energy