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参数资料
| 型号： | ADE7755ARSZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 19/20页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 1PHASE 24SSOP |
| 标准包装： | 59 |
| 输入阻抗： | 390 千欧 |
| 测量误差： | 0.1% |
| 电压 - 高输入/输出： | 2.4V |
| 电压 - 低输入/输出： | 0.8V |
| 电流 - 电源： | 3mA |
| 电源电压： | 4.75 V ~ 5.25 V |
| 测量仪表类型： | 单相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 管件 |
| 配用： | EVAL-ADE7755ZEB-ND - BOARD EVALUATION FOR AD7755 |
ADE7755
NO LOAD THRESHOLD
The ADE7755 also includes a no load threshold and start-up
current feature that eliminates any creep effects in the meter. The
ADE7755 is designed to issue a minimum output frequency in all
modes except when SCF = 0 and S1 = S0 = 1. The no load detection
threshold is disabled in this output mode to accommodate
specialized application of the ADE7755. Any load generating a
frequency lower than this minimum frequency will not cause a
pulse to be issued on F1, F2, or CF. The minimum output
frequency is given as 0.0014% of the full-scale output frequency
for each of the f i frequencies (i = 1, 2, 3, or 4), see Table 6.
For example, in an energy meter with a meter constant of
100 imp/kWh on F1 and F2 using f 2 (3.4 Hz), the maximum
output frequency at F1 or F2 is 0.0014% of 3.4 Hz or 4.76 × 10 ?5 Hz.
This is 3.05 × 10 ?3 Hz at CF (64 × F1 Hz). In this example, the no
load threshold is equivalent to 1.7 W of the load or a start-up
current of 8 mA at 220 V. IEC 1036 states that the meter must
start up with a load current equal to or less than 0.4% Ib. For a
5 A (Ib) meter, 0.4% Ib is equivalent to 20 mA. The start-up
current of this design therefore satisfies the IEC requirement.
As illustrated in this example, the choice of f i frequency
(i = 1, 2, 3, or 4) and the ratio of the stepper motor display
determine the start-up current.
Rev. A | Page 19 of 20
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADE7755ARSZ1 | 制造商:AD 制造商全称:Analog Devices 功能描述:Energy Metering IC with Pulse Output |
| ADE7755ARSZRL | 功能描述:IC ENERGY METERING 1PHASE 24SSOP 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:* |
| ADE7756 | 制造商:AD 制造商全称:Analog Devices 功能描述:Active Energy Metering IC with Serial Interface |
| ADE7756AN | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin PDIP |
| ADE7756AN-REF | 制造商:AD 制造商全称:Analog Devices 功能描述:Active Energy Metering IC with Serial Interface |
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