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参数资料
| 型号： | 78M6610+PSU/C00 |
| 厂商： | Maxim Integrated |
| 文件页数： | 9/63页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY MEASURMENT 1PH 16TSSOP |
| 标准包装： | 96 |
| 输入阻抗： | 30 千欧 ~ 90 千欧 |
| 电压 - 高输入/输出： | 2V |
| 电压 - 低输入/输出： | 0.8V |
| 电流 - 电源： | 8.1mA |
| 电源电压： | 3 V ~ 3.6 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： | 16-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 16-TSSOP |
| 包装： | 管件 |
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78M6610+PSU Data Sheet
2 Functional Description and Operation
This section describes the 78M6610+PSU functionality. It includes measurements and relevant
calculations, alarms, auxiliary functions such as calibrations, zero-crossing, relay control, etc.
A set of input (write), output (read) and read/write registers are provided to allow access to calculated
data and alarms and to configure the device. The input (write) registers values can be saved into flash
memory through a specific command. The values saved into flash memory will be loaded in these
registers at reset or power-on as defaults.
2.1
Voltage and Current Inputs Conditioning
The sensor input voltages are digitized using a single integrated second-order delta-sigma A/D converter.
The analog front-end includes a temperature sensor whose output is digitized and used for temperature
(gain) compensation.
GAIN CORRECTION
PhaseComp
HPFcoeffI
X
X
CT PHASE
COMP
HPF
i
AIP
AIN
PRECISION
REFERENCE
ADC
IA_ RAW
VA _ RAW
Igain
Vgain
X
X
DELAY
COMP
HPF
HPFcoefV
v
SINC
AVP
AVN
SIGNAL
CONDITIONING
CROSS
POINT
+ 250mv
?Σ
MODULATOR
3
DECIMATOR
DIE_ TEM P
Temperature
Compensation
ATEMP
2
F ADC
ON-CHIP
TEMPERATURE
SENSOR
X
Tgain
X
Toffs
Figure 4: Analog Input Signal Conditioning
2.1.1 High Pass Filters (HPF) and Offset Correction
The high-pass filters (HPF) in Figure 4 and Figure 5 can remove any DC from the signal paths and
consequently from power and RMS calculated values. The HPFs work by subtracting the value of the
offset register (Voffs, Ioffs) from the corresponding voltage or current input. The offset registers can be set
by the user, by an automatic calibration routine or adjusted dynamically by the FW.
HPF
-
∑
offs
+
X
N
N-1
n=0
HPFcoef
Figure 5: HPF
2.1.2 Phase Compensation
A phase compensation register is provided to compensate phase errors introduced by current
transformers (CT) or external filters. The amount of phase shift is set by the PhaseComp register as a
fractional number of ADC samples with a total range of +/- 4 ADC samples (roughly +/- 20 degrees for a
60Hz line frequency).
Rev 1
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 78M6611-EVM | 制造商:Maxim Integrated Products 功能描述:78M6611 EVAL BOARD - Boxed Product (Development Kits) |
| 78M6611-IVT/F | 功能描述:IC POWER MEASUREMENT AC 24-TSSOP 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:* |
| 78M6611-IVT/F/P | 制造商:Maxim Integrated Products 功能描述:PROGRAMMED - LEAD FREE - Rail/Tube |
| 78M6611-IVTR/F | 功能描述:IC POWER MEASUREMENT AC 24-TSSOP 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:* |
| 78M6611-IVTR/F/P | 制造商:Maxim Integrated Products 功能描述:PROGRAMMED - LEAD FREE/TAPE & REEL - Tape and Reel |
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