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首页＞ADI美国模拟器件公司＞电能计量IC
ADE7752AAR 脉冲输出低功耗三相电能计量IC
ADE7752AAR 产品描述
ADE7752AAR 是一款适合用于三相配电系统的精确有功功率电能计量IC。它可根据输电线的电流和电压提供瞬时有功功率和平均有功功率。该器件规范超过IEC61036标准规定的精度要求。ADE7752AAR 中使用的唯一模拟电路是ADC和参考电压电路。所有其它信号处理（例如乘法和滤波）都是在数字域实现的。这种信号处理方法可在随环境条件和时间变化的很大范围内提供优异的稳定性和精度。
通道之间的增益校准在器件外部进行调整。ADE7752AAR 采用24引脚SOIC封装。AADE7752A 的功耗低于ADE7752。推荐选用ADE7752AAR 用于全新的设计，它并且可以直接替代ADE7752。这两款产品的功能和引脚相互兼容。
ADE7752AAR 脉冲输出低功耗三相电能计量IC
The ADE7752AAR is a high accuracy polyphase electrical energy measurement IC. The ADE7752AAR is a pin-to-pin compatible low power version of ADE7752. The functions of ADE7752 and ADE7752AAR are the same. Both products are referred to in the text of this data sheet as ADE7752.
The part specifications surpass the accuracy requirements as quoted in the IEC62053-2x standard. The only analog circuitry used in the ADE7752 is in the analog-to-digital converters (ADCs) and reference circuit. All other signal processing (such as multi-plication, filtering, and summation) is carried out in the digital domain. This approach provides superior stability and accuracy over extremes in environmental conditions and over time。
The ADE7752 supplies average real power information on the low frequency outputs, F1 and F2. These logic outputs may be used to directly drive an electromechanical counter or to interface with an MCU. The CF logic output gives instanta-neous real power information. This output is intended to be used for calibration purposes.
The ADE7752 includes a power supply monitoring circuit on the VDD pin. The ADE7752 remains inactive until the supply voltage on VDD reaches 4 V. If the supply falls below 4 V, no pulses are issued on F1, F2, and CF. Internal phase matching circuitry ensures that the voltage and current channels are phase matched. An internal no load threshold ensures the part does not exhibit any creep when there is no load. The ADE7752 is available in a 24-lead SOIC package.
ADE7752AAR 技术指标
| Meter Type |
Polyphase |
| Active Energy Accuracy |
0.1% over 500:1 @25°C |
| Active Energy Bandwidth |
14kHz |
| Analog input range |
+/-32mV to +/- 500mV peak |
| Power Consumption |
30mW Typical |
| Reference Tempco |
20ppm/°C Typical |
ADE7752AAR 特点
- 超过IEC61036标准的精度要求：在25°C温度条件下，500:1动态范围内有功功率测量误差小于0.1%
- 可直接驱动步进电机计度器的脉冲输出
- 用于快速校准的附加高频脉冲输出
- 内置参考电压源（2.4 V）
- 可选择每相功率绝对值相加或算术求和
- 超低功耗
- High accuracy, supports 50 Hz/60 Hz IEC62053-2x
Less than 0.1% error over a dynamic range of 500 to 1
Compatible with 3-phase/3-wire delta and 3-phase/4-wire Wye configurations
- The ADE77521 supplies average real power on frequency outputs F1 and F2
- High frequency output CF is intended for calibration and supplies instantaneous real power
- Logic output REVP indicates a potential miswiring or negative power for each phase
- Direct drive for electromechanical counters and 2-phase stepper motors (F1 and F2)
- Proprietary ADCs and DSP provide high accuracy over large variations in environmental conditions and time
- On-chip power supply monitoring
- On-chip creep protection (no load threshold)
- On-chip reference 2.4 V ±8% (20 ppm/°C typical) with external overdrive capability
- Single 5 V supply, low power 60 mW typical: ADE7752 30 mW typical: ADE7752A
- Low cost CMOS process
ADE7752A 产品型号选择
| Model 型号 |
Package 封状形式 |
Pins 管脚各数 |
Temp
Range 工作温度 |
无铅封装产品 |
| ADE7752AAR |
24 ld SOIC - Wide |
24 |
Ind |
N
Material
Declaration |
| ADE7752AAR-RL |
24 ld SOIC - Wide |
24 |
Ind |
N
Material
Declaration |
| ADE7752AARZ |
24 ld SOIC - Wide |
24 |
Ind |
Y
Material
Declaration |
| ADE7752AARZ-RL |
24 ld SOIC - Wide |
24 |
Ind |
Y
Material
Declaration |
| EVAL-ADE7752AEB |
EVALUATION BOARDS |
- |
Ind |
N |
| EVAL-ADE7752AEBZ |
EVALUATION BOARDS |
- |
Ind |
Y |
关于ADE7752A三相电能计量IC
ADI最新推出三款三相电能计量集成电路（IC）ADE7752A, ADE7752B和ADE7762，从而为低功耗和计费精度至关重要的民用和工业应用提供了最佳性能。这些IC产品利用脉冲输出直接驱动计费总表或分表、三相电动机或发电机、工业控制和电力自动控制中的步进电机计度器显示以提供瓦时（Whr）电能信息。这种脉冲输出功能还可用于驱动液晶显示电能表中的微控制器（MCU）。
ADE7752A和ADE7752B与ADE7752引脚兼容，但是它们仅需40 mW功耗，其功耗比同类产品降低30％。ADE7762有4个附加的引脚可用于电能质量监测，从而允许电能表用来分别指示各相是否存在反相和缺相以及相序错。这些新功能够使电力公司收集更多的有关电网状况的信息，从而采取行动纠正接线问题、减少运转中断并且以低成本高效率的方法改进客户服务质量。 为便于移植到新设计中，ADE7752A和ADE7752B都与ADE7752引脚兼容。ADE7762除了具有与ADE7752A/B相同的引脚，其余4个附加的引脚位于器件封装的上部以便与基于ADE7762和ADE7752A/B的电能表使用同一块印制电路板（PCB）。
像ADI公司电能计量（ADE）系列其它产品一样，ADE7752A，ADE7752B和ADE7762提供高精度有功功率测量，在500:1电流动态范围内，具有小于0.1%的增益误差。它们都需要5 V单电源供电， 仅需40 mW的低功耗，并且适合工作在－40 °C ～＋85 °C的工作温度范围。这些三相IC适用于多种三相电网配置并且都可设置为对每相有功功率的绝对值累加。
ADI 公司简介
ADI 公司是一家在高性能模拟信号、混合信号和数字信号处理(DSP)集成电路(IC)的设计、制造和市场方面世界领先的公司，其产品广泛应用于信号处理领域。 ADI公司的产品面向通信、计算机、消费类和工业市场中种类广泛的客户。ADI公司 2001财政年度收入大约40%是来自于工业市场，38%是来自于通信市场，其余22%是来自计算机和消费类市场。
ADE7752A 技术资料：
- ADE7752A 内置故障检测单相电能计量IC ADE7752A,技术资料DataSheet . PDF
- 电能计量IC 和系统解决方案选型表 . PDF
- Analog Devices, Inc.ADI美国模拟器件公司产品订购手册 . PDF
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