参数资料
| 型号： | MCP3905EV |
| 厂商： | Microchip Technology |
| 文件页数： | 19/30页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR MCP3905 |
| 产品培训模块： | MCP3901 Analog Front End |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MCP3905/6 |
| 主要属性： | 1 相 120/220 VAC 板载无变压器 AC/DC 5V 电源 |
| 已供物品： | 板，CD |
| 产品目录页面： | 677 (CN2011-ZH PDF) |
| 相关产品： | MCP3905L-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP MCP3905LT-I/SSTR-ND - IC POWER METERING-1 PHASE 24SSOP MCP3906AT-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP MCP3905AT-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP MCP3906A-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP MCP3905A-I/SS-ND - IC POWER METERING-1 PHASE 24SSOP |
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MCP3905/06
4.7
F OUT0/1 and HF OUT Output
Frequencies
For a given DC input V, the DC and RMS values are
equivalent. For a given AC input signal with peak-to-
peak amplitude of V, the equivalent RMS value is V/
The thresholds for the accumulated energy are
different for F OUT0/1 and HF OUT (i.e., they have differ-
ent transfer functions). The F OUT0/1 allowed output
frequencies are quite low in order to allow superior
can be calculated with the following equation:
sqrt(2), assuming purely sinusoidal signals. Note that
since the active (real) power is the product of two RMS
inputs, the output frequencies of an AC signal is half
that of the DC equivalent signal, again assuming purely
sinusoidal AC signals. The constant F C depends on the
F OUT0 and F OUT1 digital settings. Table 4-3 shows
F OUT0/1 output frequencies for the different logic
settings.
EQUATION 4-1:
F OUT FREQUENCY
8.06 × V 0 × V 1 × G × F
OUTPUT EQUATION
2 C
F OUT ( Hz ) = -----------------------------------------------------------
( V REF )
Where:
V 0 = the RMS differential voltage on Channel 0
V 1 = the RMS differential voltage on Channel 1
G = the PGA gain on Channel 0
(current channel)
F C = the frequency constant selected
V REF = the voltage reference
TABLE 4-3:
OUTPUT FREQUENCY CONSTANT FC FOR FOUT0/1 (V REF = 2.4V)
MCLK/2
MCLK/2
F1
0
0
1
1
F0
0
1
0
1
F C (Hz)
MCLK/2 21
MCLK/2 20
19
18
F C (Hz)
(MCLK = 3.58 MHz)
1.71
3.41
6.83
13.66
F OUT Frequency (Hz)
with Full-Scale
DC Inputs
0.74
1.48
2.96
5.93
F OUT Frequency (Hz)
with Full-Scale
AC Inputs
0.37
0.74
1.48
2.96
? 2009 Microchip Technology Inc.
DS21948E-page 19
相关PDF资料 |
PDF描述 |
|---|---|
| MCP402XEV | BOARD EVAL FOR MCP402X |
| MCP42XXEV | BOARD EVALUATION MCP42XX |
| MCP43XXEV | BOARD EVALUATION MCP43XX |
| MCP46XXDM-PTPLS | BOARD PICTAIL DIGI POT MCP4XXX |
| MCP46XXEV | EVAL BOARD FOR MCP46XX |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP3905-I/SS | 功能描述:IC ENERGY METER 24-SSOP 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:* |
| MCP3905L | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Energy-Metering ICs with Active (Real) Power Pulse Output |
| MCP3905L-E/SS | 功能描述:模数转换器 - ADC Energy Meter IC Gain Dynamic Range RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MCP3905L-I/SS | 功能描述:模数转换器 - ADC Dynamic Range Energy Meter IC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MCP3905LT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Energy-Metering ICs with Active (Real) Power Pulse Output |
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