ACS770 current sensor IC family provides economical and precise solutions for AC or DC current sensing. Typical applications include motor applications, the load detection and management, power and DC - DC converter control, inverter control and overcurrent protection.
The equipment consists of a precision low-offset linear Hall circuit, a copper current path near the surface of the wafer. Current flows through the current path generates a magnetic field in the central core is a low hysteresis, is converted by the Hall IC into a voltage output proportional to the same. Close to the magnetic signal by the Hall sensor, to achieve an accuracy optimize device. Exact proportional output voltage is provided by a low bias chopper-stabilized BiCMOS Hall IC, for accuracy of the IC factory programmed. With the proportion of digital temperature compensation IC technology greatly improved accuracy and temperature stability, high bandwidth without affecting the operation of the analog output.
High resistance to current conductor dV / dt signals and stray electric fields Allegro proprietary technology provides an integrated shield, to ensure that the high side, low output voltage ripple high voltage applications and low bias drift.
When a copper conductive paths increases (for the current sampling) a current (from the terminal 4 to terminal 5), the output device has a positive slope (bidirectional component> VCC / 2). The typical value of the internal resistance of the conductive path is 100 μΩ, low power loss.
Thickness of the copper allows the device to operate at high overcurrent condition. The signal terminal lead electrically isolated from the current path (pins 1 to 3). This allows ACS770 sensor IC series to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques.
Device is fully calibrated prior to shipment from the factory. ACS770 series are lead-free products. All leads are plated with 100% matte tin, there is no lead inside the package. The large size of the lead frame is made of oxygen-free copper.
Features and Benefits
-
With the new offset and sensitivity piecewise linear digital temperature compensation, the total output to achieve industry-leading accuracy
-
Industry-leading noise performance through proprietary amplifier and filter design techniques
-
A typical bandwidth of 120 kHz
-
To step input current, output rise time of 4.1 μs
-
Integrated shield greatly reduce capacitive coupling due to the high dV / dt signal from current conductor to the wafer, and prevents high offset, drift in high voltage applications.
-
By programming and digital gain and offset compensation over the complete operating temperature range, greatly improving the overall output error
-
Small package size, easy to install
-
High reliability monolithic Hall IC
-
Ultra-low power consumption: 100 μΩ internal conductor resistance
-
Insulation is designed for high-voltage systems economical, high-current sensing
-
4.5 to 5.5 V, single supply operation
-
AC or DC output voltage proportional to the current
-
It has been calibrated at the factory to ensure accuracy
-
Extremely stable output offset voltage
-
VCC under-voltage lock below the specified parameters
-
Meet the AEC-Q100 automotive standard
-
Certified by UL, File No. E316429
The complete model
型号 封装类型 温度 ACS770ECB-200B-PFF-T 5-lead CB -40°C to 85°C ACS770ECB-200B-PSF-T 5-lead CB -40°C to 85°C ACS770ECB-200U-PFF-T 5-lead CB -40°C to 85°C ACS770ECB-200U-PSF-T 5-lead CB -40°C to 85°C ACS770ECB-400B-PFF-T 5-lead CB -40°C to 85°C ACS770ECB-400U-PFF-T 5-lead CB -40°C to 85°C ACS770ECBTV-250B-PFF-T 5-lead CB -40°C to 85°C ACS770ECBTV-250U-PFF-T 5-lead CB -40°C to 85°C ACS770KCB-150B-PFF-T 5-lead CB -40°C to 125°C ACS770KCB-150B-PSF-T 5-lead CB -40°C to 125°C ACS770KCB-150B-PSS-T 5-lead CB -40°C to 125°C ACS770KCB-150U-PFF-T 5-lead CB -40°C to 125°C ACS770KCB-150U-PSF-T 5-lead CB -40°C to 125°C ACS770KCB-167B-PFF-T 5-lead CB -40°C to 125°C ACS770KCBTV-050B-PFF-T 5-lead CB -40°C to 125°C ACS770KCBTV-150U-PSF-T 5-lead CB -40°C to 125°C ACS770KCBTV-167B-PFF-T 5-lead CB -40°C to 125°C ACS770LCB-050B-PFF-T 5-lead CB -40°C to 150°C ACS770LCB-050U-PFF-T 5-lead CB -40°C to 150°C ACS770LCB-100B-PFF-T 5-lead CB -40°C to 150°C
