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ADE7761A
Pin No.
15
16
17
18
19, 20
Mnemonic
FAULT
REVP
DGND
CF
F2, F1
Description
This logic output goes active high when a fault or missing neutral condition occurs. A fault is defined as a
condition under which the signals on V 1A and V 1B differ by more than 6.25%. A missing neutral condition is
defined when the chip is powered up with no voltage at the input. The logic output is reset to zero when a fault
or missing neutral condition is no longer detected. See the Fault Detection section and the Missing Neutral Mode
section.
This logic output goes logic high when negative power is detected, that is, when the phase angle between the
voltage and current signals is greater than 90°. This output is not latched and is reset when positive power is once
again detected. The output goes high or low at the same time as a pulse is issued on CF.
This pin provides the ground reference for the digital circuitry in the ADE7761A, that is, multiplier, filters, and
digital-to-frequency converters. This pin should be tied to the digital ground plane of the PCB. The digital ground
plane is the ground reference for all digital circuitry, such as counters (mechanical and digital), MCUs, and
indicator LEDs. For good noise suppression, the analog ground plane should be connected only to the digital
ground plane at the DGND pin.
Calibration Frequency Logic Output. The CF logic output, active high, gives instantaneous active power
information. This output is used for operational and calibration purposes. See the Digital-to-Frequency Conversion
section.
Low Frequency Logic Outputs. F1 and F2 supply average active power information. The logic outputs can be
used to directly drive electromechanical counters and 2-phase stepper motors.
Rev. 0 | Page 7 of 24
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相关代理商/技术参数
ADE7761ARS 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
ADE7761ARS-REF 制造商:Analog Devices 功能描述:ENERGY METER IC W/FAULT&MNEUT DETEC. - Bulk
ADE7761ARSRL 制造商:AD 制造商全称:Analog Devices 功能描述:Energy Metering IC with On-Chip Fault and Missing Neutral Detection
ADE7761B 制造商:AD 制造商全称:Analog Devices 功能描述:Energy Metering IC with On-Chip Fault and Missing Neutral Detection
ADE7761BARS 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
ADE7761BARS-REF 制造商:AD 制造商全称:Analog Devices 功能描述:Energy Metering IC with On-Chip Fault and Missing Neutral Detection
ADE7761BARS-RL 制造商:AD 制造商全称:Analog Devices 功能描述:Energy Metering IC with On-Chip Fault and Missing Neutral Detection
ADE7761BARSZ 功能描述:IC ENERGY METERING 1PHASE 20SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 能量测量 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:*