CS5490集成電路（IC）的電能計量規(guī)格書PDF中文資料

CS5490屬于集成電路（IC）的電能計量。由凌云邏輯制造生產(chǎn)的CS5490電能計量能量計量集成電路可用于單相、雙相和三相電力線系統(tǒng)中的高精度電能測量。這些器件可以測量線路電壓和電流，并且可以計算有功、無功和視在電能，以及瞬時均方根電壓和電流。

Description

The CS5490 is a high-accuracy, two-channel, energy measurement analog front end.

The CS5490 incorporates independent 4th order Delta-Sigma analog-to-digital converters for both channels, reference circuitry, and the proven EXL signal processing core to provide active, reactive, and apparent energy measurement. In addition, RMS and power factor calculations are available. Calculations are output via a configurable energy pulse, or direct UART serial access to on-chip registers. Instantaneous current, voltage, and power measurements are also available over the serial port. The two-wire UART minimizes the cost of isolation where required.

Features & Description

? Superior Analog Performance with Ultra-low Noise Level & High SNR

? Energy Measurement Accuracy of 0.1 over a 4000:1 Dynamic Range

? Two Independent 24-bit, 4th-order, Delta-Sigma Modulators for Voltage and Current Measurements

? Configurable Digital Output for Energy Pulses, Interrupt, zero-crossing, and Energy Direction

? Supports Shunt Resistor, CT, and Rogowski Coil Current Sensors

? On-chip Measurements/Calculations:

- Active, Reactive, and Apparent Power

- RMS Voltage and Current

- Power Factor and Line Frequency

- Instantaneous Voltage, Current, and Power

? Overcurrent, Voltage Sag, and Voltage Swell Detection

? Ultra-fast On-chip Digital Calibration

? Configurable No-load Threshold for Anti-creep

? Internal Register Protection via Checksum and Write Protection

? UART Serial Interface

? On-chip Temperature Sensor

? On-chip Voltage Reference (25ppm/°C Typ.)

? Single 3.3 V Power Supply

? Ultra-fine Phase Compensation

? Low Power Consumption: <13 mW

? Power Supply Configurations:

- GNDA = 0 V, VDDA: +3.3 V

? Low-cost 16-pin SOIC Package