BL6528

BL6528 Single-phase Multifunction Metering IC FEATURES  High accuracy. Less than 0.1% error in active energy measurement and reactive measurement over a dynamic range of 3000:1.  High stability, less than 0.1%error in the output frequency fluctuation.  Measure the active power in the positive orientation and negative orientation, transform to fast pulse output (CF).  Measure the reactive power transform to fast pulse output (CF_VAR).  Measure the reactive power transform to fast pulse output (CF_VA).  Measure instantaneous IRMS and VRMS over a dynamic range of 1500:1.  On-chip SAG and zero-crossing detector.  On-chip power supply detector.  On-chip anti-creep protection with the programmable threshold set.  Provide the pulse output with programmable frequency adjustment.  Provide the programmable gain adjustment and phase compensation  Measure the power factor (PF).  Provide a programmable interrupt request signal (/IRQ).  Provide a SPI/UART communication interface.  On-chip voltage reference of 2.5V.  With 3.58MHz external crystal oscillator.  Single 5V supply, 30mW(typical) Interrelated patents are pending DESCRIPTION The BL6528 is a low cost, high accuracy, high stability, electrical energy measurement IC intended to single phase, multifunction applications. The BL6528 incorporates two high accuracy Sigma-Delta ADC, voltage reference, power management and digital signal processing circuit using to calculates active energy , reactive energy ,apparent energy...