ADE7752BARWZ: 3-Phase, 3-Wire, and 4-Wire Energy Metering IC with Pulse Output
The ADE7752B* is a high accuracy polyphase electrical energy measurement IC. The ADE7752B specifications surpass the accuracy requirements as quoted in the IEC62053-21 standard. The only analog circuitry used in the ADE7752B is in the analog-to-digital converters (ADCs) and reference circuit. All other signal processing (for example, multiplication, 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 ADE7752B supplies average active power information on the low frequency outputs, F1 and F2. These logic outputs can be used to directly drive an electromechanical counter or to interface with a microcontroller (MCU). The CF logic output gives instantaneous active power information. This output is intended to be used for calibration purposes.
The ADE7752B includes a power supply monitoring circuit on the VDD pin. The ADE7752B remains inactive until the supply voltage on VDD reaches 4 V. If the supply falls below 4 V, the ADE7752B resets and 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 that the ADE7752B does not exhibit any creep when there is no load.
The ADE7752B is available in a 24-lead SOIC package.
ADE7752BARWZ 特点
- High accuracy supports 50 Hz/60 Hz IEC 62053-21
- 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
- Supplies average active power on the frequency outputs F1 and F2
- High frequency output (CF) is intended for calibration and supplies instantaneous active power
- Logic output REVP indicates a potential miswiring or negative power on the sum of all phases
- 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% (25 ppm/°C typical) with external overdrive capability
- Single 5 V supply, low power (42.5 mW typical)
ADE7752BARWZ 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADE7752BARWZ | 量产 | 24 ld SOIC - Wide | 24 | 工业 |
| ADE7752BARWZ-RL | 量产 | 24 ld SOIC - Wide | 24 | 工业 |
ADE7752BARWZ 应用技术支持与电子电路设计开发资源下载
- ADE7752B 数据手册DataSheet 下载 . pdf
- Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .pdf
- ADC模数转换器选型指南 . pdf
- 电能计量IC选型指南 . pdf
