- 您现在的位置：买卖IC网 > PDF目录97839 > 71M6515H-IGT/F (MAXIM INTEGRATED PRODUCTS INC) SPECIALTY ANALOG CIRCUIT, PQFP64 PDF资料下载
参数资料
| 型号： | 71M6515H-IGT/F |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP64 |
| 封装： | LEAD FREE, LQFP-64 |
| 文件页数： | 41/60页 |
| 文件大小： | 826K |
| 代理商： | 71M6515H-IGT/F |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页当前第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页
71M6515H
Energy Meter IC
DATA SHEET
JULY 2011
Page: 46 of 60
2005
2011 Teridian Semiconductor Corporation
1.6
A Maxim Integrated Products Brand
If higher precision is required, the host must calculate the RMS voltages from the values in the VASQSUM, VBSQSUM, and
VCSQSUM registers.
Example: The register VRMS_B reads the value 425,778,000. Assuming VMAX to be 600V, and using the
formula above, we determine the RMS voltage of phase B to:
V
RMS
85
.
226
60
600
10
8781
.
6
425778000
9
=
=
WH_A (0x00), WH_B (0x01), WH_C (0x02)
These registers hold the real energy collected during the previous accumulation interval. The magnitude of the values is
determined by:
Wh
In
IMAX
VMAX
LSB
8
_
10
4045
.
9
13
=
Example: The register WH_A reads the value 236,675 for one accumulation interval of one second. Assuming
600V for VMAX, 208A for IMAX, and unity gain, we determine the real energy to be:
E = 236,675*600*208*9.4045*10
-13 Wh = 0.0277781Wh.
By multiplying with 3,600, we get 100Wh/h, which means the applied power is 100W.
FREQ_DELTA_T (0x11)
This register holds frequency and temperature information in two bytes each.
Bits 31-16: These bits (FREQUENCY) represent the frequency of the input signal selected with the F_SELECT bit of the
CONFIG register. One LSB is equivalent to 0.1Hz.
MAIN_EDGE_CNT (0x35)
This register holds the number of zero crossings of the input phase selected by the F_SELECT bits in the CONFIG register
detected in the previous accumulation interval. The value in MAIN_EDGE_CNT can be used by the host to correct its own
RTC or to synchronize events to the line voltage.
Registers Controlling Alarms and Thresholds
CREEP_THRSLD (0x1D)
The four bytes written to this register determine the creep threshold. Setting a creep threshold helps suppressing I2H, Wh
and VARh readings when the values of WSUM and VARSUM are determined to be below the creep threshold.
Example: The creep threshold of a meter operating with an accumulation interval of 1000ms is to be configured
to be 15mA at 240V. The meter is using a VMAX of 600V, an IMAX of 208A, and is not using the additional gain
of 8. The numerical value for the CREEP_THRSLD register is to be determined.
With 15mA, the power per phase will be 3.6W, or 0.001Wh per second. With the LSB of WSUM readings given
as 9.4045*10
-13*VMAX*IMAX [Wh], we determine the value to:
n = 0.001Wh / (9.4045*10
-13*VMAX*IMAX /In_8 Wh) = 8520.2
The rounded down value of 8520 is written to the CREEP_THRSLD register.
SAG (0x2E)
This register holds the voltage and timing threshold for sag detection.
Bits 15-0: These bits (SAG_CNT) hold the sag count. A sag condition must persist for at least SAG_CNT samples before a
sag alarm is generated. The allowed range is 1 to (2
15-1), and the default is 80 (31.7ms). The time period defined by
SAG_CNT is:
T = SAG_CNT*397
s
相关PDF资料 |
PDF描述 |
|---|---|
| 7234 | SPECIALTY ANALOG CIRCUIT, CDIP22 |
| 7244 | SPECIALTY ANALOG CIRCUIT, PDIP20 |
| 7250 | SPECIALTY ANALOG CIRCUIT, PDIP16 |
| 73S8009CN-32IMR/F | SPECIALTY ANALOG CIRCUIT, QCC32 |
| 73S8009CN-32IM/F | SPECIALTY ANALOG CIRCUIT, QCC32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6515H-IGTR | 制造商:Maxim Integrated Products 功能描述:71M6515H-IGT - T/REEL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Energy Meter IC |
| 71M6515H-IGTR/F | 功能描述:计量片上系统 - SoC Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6515H-IGTW/F | 功能描述:计量片上系统 - SoC Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6515H-IGTW1 | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Up to 10ppmC precision ultra-stable voltage reference Digital temperature compensation |
| 71M6515H-IGTWR1 | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Up to 10ppmC precision ultra-stable voltage reference Digital temperature compensation |
发布紧急采购，3分钟左右您将得到回复。