BL6528

Single-phase Multifunction Metering IC

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V1.0

FEATURES

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High accuracy. Less than 0.1% error in active energy measurement and reactive measurement over a dynamic

range of 3000:1.

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High stability, less than 0.1%error in the output frequency fluctuation.

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Measure the active power in the positive orientation and negative orientation, transform to fast pulse output

(CF).

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Measure the reactive power transform to fast pulse output (CF_VAR).

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Measure the reactive power transform to fast pulse output (CF_VA).

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Measure instantaneous IRMS and VRMS over a dynamic range of 1500:1.

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On-chip SAG and zero-crossing detector.

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On-chip power supply detector.

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On-chip anti-creep protection with the programmable threshold set.

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Provide the pulse output with programmable frequency adjustment.

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Provide the programmable gain adjustment and phase compensation

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Measure the power factor (PF).

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Provide a programmable interrupt request signal (/IRQ).

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Provide a SPI/UART communication interface.

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On-chip voltage reference of 2.5V.

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With 3.58MHz external crystal oscillator.

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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 ,IRMS ,VRMS

etc.

The BL6528 measures line voltage, current and calculates active ,reactive ,apparent energy, power factor, line

frequency, detect SAG, overvoltage, overcurrent, PEAK, zero-crossing voltage.

The BL6528 provide access to on-chip meter registers via SPI communication interface.

The BL6528 provide all-digital domain offset compensation, gain adjustment, phase compensation

(maximum ±2.54°adjustable).