ADE7751:Single Phase Energy Metering IC with On-Chip Fault Detection

ADE7751: Single Phase Energy Metering IC with On-Chip Fault Detection

The ADE7751 is an accurate fault tolerant electrical energy measurement IC intended for use in two-wire distribution systems. It provides instantaneous and average real power based on line voltage and current. The part specifications surpass the accuracy requirements as quoted in the IEC1036 standard. The only analog circuitry used on the ADE7751 is in the ADCs and reference circuit. All other signal processing (e.g., multiplication and filtering) is carried out in the digital domain. This approach provides superior stability and accuracy over extremes in environmental conditions and over time.The ADE7751 incorporates a novel fault detection scheme, which both warns of fault conditions and allows the ADE7751 to continue accurate billing during a fault event. The ADE7751 does this by continuously monitoring both the phase and neutral (return) currents. A fault is indicated when these currents differ by more than 12.5%, and billing is continued using the larger of the two currents. Gain calibration between channels is adjusted external to this device. The ADE7751, available in SSOP packages, is pin compatible with the ADE7751. It has the same functionalities as the ADE7751. The only difference is that its low frequency (F1/F2) and high frequency (CF) outputs are synchronized under all load conditions.

ADE7751 特点

Exceeds IEC61036 with less than 0.1% active energy error over dynamic range of 500:1 at 25ºC
Continuous monitoring of Phase and Neutral
Fault and Reverse Power Outputs Indicate Potential Miswiring
Pulse Output for Direct Interface to Stepper Motor Counter
Additional High Frequency Pulse Output for Fast Calibration
On chip Voltage Reference (2.4 V)
Low Power (15 mW typical)

ADE7751 技术指标

Anti-Tamper Support: Current Fault
Output Interface: Pulsed
Package: 24-Lead SSOP
Measurement Parameters : Watt
Current Sensor Interface: Current Transformer,Shunt

ADE7751 芯片订购指南

产品型号	封装	引脚	温度范围	包装和数量	报价*(100-499)	报价*1000 pcs
ADE7751ARSRL 产品状态: 停产	24 ld SSOP	24	工业	Reel, 1500	-	-
ADE7751ARSZ 产品状态: 量产	24 ld SSOP	24	工业	Tube, 59	$ 1.69	$ 1.64
ADE7751ARSZRL 产品状态: 量产	24 ld SSOP	24	工业	Reel, 1500	-	$ 1.64