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| 型号： | CS5462-ISZ |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 9/16页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 1PHASE 24SSOP |
| 标准包装： | 59 |
| 输入阻抗： | 30 千欧 |
| 测量误差： | 0.1% |
| 电压 - 高输入/输出： | 0.8V |
| 电压 - 低输入/输出： | 0.2V |
| 电流 - 电源： | 2.9mA |
| 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 |
CS5462
PGA Gain Select
HPF Select
On-Chip
Configuration
Output Mode Select
Freq Select
IIN± PGA
4 th Order
??
Modulator
Digital
Filters
HPF
Calibration
Energy to
E1
x
x
Pulse Rate
Converter
E2
FOUT
VIN±
10x
2 nd Order
??
Modulator
Digital
Filters
HPF
Figure 1. Data Flow
3.1
Theory of Operation
erage power. This power is then adjusted based on
A computational flow diagram for the two data
paths is shown in Figure 1. The analog waveforms
at the voltage/current channel inputs are subject to
the gains of the input PGAs.
the internal calibration setting defined at startup.
Calibrating the CS5462 is done by externally con-
necting the configuration input pins, CAL1 and
CAL0, to the program select output pins, P1 - P7,
in a particular sequence. These connections will in-
3.1.1
Digital Filters
ternally compensate for small gain errors.
The modulators convert the analog input voltages
on the I and V channels to a digital bitstream; which
is then filtered by the digital filter section. The digi-
tal filter is composed of low pass sinc 3 and IIR fil-
3.1.3
Energy-to-Frequency Conversion
ters. The IIR filters are used to compensate for the
magnitude roll-off of the low pass filter section.
Both channels provide a high-pass filter option
which can be engaged into the signal path to re-
move the DC content from the current/voltage signal
before the energy calculations are made.
3.1.2 Gain Calibration
After being filtered, the instantaneous voltage and
current digital codes are used to calculate real av-
DS547F1
The calibrated energy value is then converted into
a pulse output stream with a average frequency
proportional to the measured energy. Pulse output
pins E1 and E2 can be set to lower frequencies to
directly drive a stepper motor or a mechanical
counter or interface a microcontroller or infrared
LED. The FOUT pulse output pin is set to max fre-
quency of 10 kHz. With full scale input s on both the
current and voltage channels FOUT will output
pulses with an average frequency of 10 kHz.
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CS5462-ISZR | 功能描述:电流和电力监控器、调节器 IC Low-Cost PWR/Enrg w/Pulse Output RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
| CS5463 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Single Phase, Bi-directional Power/Energy IC |
| CS5463_08 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Single Phase, Bi-directional Power/Energy IC |
| CS5463_11 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Single Phase, Bi-directional Power/Energy IC |
| CS5463-IS | 功能描述:电流和电力监控器、调节器 Single Phase Power/Energy IC RoHS:否 制造商:STMicroelectronics 产品:Current Regulators 电源电压-最大:48 V 电源电压-最小:5.5 V 工作温度范围:- 40 C to + 150 C 安装风格:SMD/SMT 封装 / 箱体:HPSO-8 封装:Reel |
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