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參數(shù)資料
| 型號： | 90E23PYGI |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| 封裝： | GREEN, SSOP-28 |
| 文件頁數(shù)： | 4/54頁 |
| 文件大小： | 610K |
| 代理商： | 90E23PYGI |
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90E21/22/23/24
SINGLE-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Functional Description
12
March 22, 2011
3
FUNCTIONAL DESCRIPTION
3.1
DYNAMIC METERING RANGE
Accuracy is 0.1% for active energy metering and 0.2% for reactive
energy metering over a dynamic range of 5000:1 (typical). Refer to
3.2
STARTUP AND NO-LOAD POWER
Startup and no-load power thresholds are programmable, both for
active and reactive power. The related registers are listed in Table-5.
The chip will start within 1.2 times of the theoretical startup time of
the configured startup power, if startup power is less than the corre-
sponding power of 20mA when power factor or sinφ is 1.0.
The chip has no-load status bits, the Pnoload/Qnoload bit (EnStatus,
46H). The chip will not output any active pulse (CF1) in active no-load
state. The chip will not output any reactive pulse (CF2) in reactive no-
load state.
The default value for active startup power is the corresponding power
when the current is 0.4%Ib (basic current) at unity power factor. The
default value for reactive startup power is the corresponding power
when the current is 0.5%Ib and sin
φ is 1.0. The default value for both
active and reactive no-load power is '0'.
3.3
ENERGY REGISTERS
The 90E21/22/23/24 provides energy pulse output CFx (CF1/CF2)
which is proportionate to active/reactive energy. Energy is usually accu-
mulated by adding the CFx pulses in system applications. Alternatively,
the 90E21/22/23/24 provides energy registers. There are forward
(inductive), reverse (capacitive) and absolute energy registers for both
active and reactive energy. Refer to Table-6.
Each energy register is cleared after read. The resolution of energy
registers is 0.1CF, i.e. one LSB represents 0.1 energy pulse.
Table-3 Active Energy Metering Error
Current
Power Factor
Error(%)
20mA ≤ I ＜ 50mA
1.0
±
0.2
50mA ≤ I ≤ 100A
±
0.1
50mA ≤ I ＜ 100mA
0.5 (Inductive)
0.8 (Capacitive)
±
0.2
100mA ≤ I ≤ 100A
±
0.1
Note: Shunt resistor is 250
or CT ratio is 1000:1 and load resistor is 6.
Table-4 Reactive Energy Metering Error
Current
sin
φ (Inductive or
Capacitive)
Error(%)
20mA ≤ I ＜ 50mA
1.0
±
0.4
50mA ≤ I ≤ 100A
±
0.2
50mA ≤ I ＜ 100mA
0.5
±
0.4
100mA ≤ I ≤ 100A
±
0.2
Note: Shunt resistor is 250
or CT ratio is 1000:1 and load resistor is 6.
Table-5 Threshold Configuration for Startup and No-Load Power
Threshold
Register
Threshold for Active Startup Power
PStartTh, 27H
Threshold for Active No-load Power
PNolTh, 28H
Threshold for Reactive Startup Power
QStartTh, 29H
Threshold for Reactive No-load Power
QNolTh, 2AH
Table-6 Energy Registers
Energy
Register
Forward Active Energy
APenergy, 40H
Reverse Active Energy
ANenergy, 41H
Absolute Active Energy
ATenergy, 42H
Forward (Inductive) Reactive Energy
RPenergy, 43H
Reverse (Capacitive) Reactive Energy
RNenergy, 44H
Absolute Reactive Energy
RTenergy, 45H
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 90E23PYGI8 | 功能描述:電流和電力監(jiān)控器、調節(jié)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| 90E24PYGI | 功能描述:電流和電力監(jiān)控器、調節(jié)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| 90E24PYGI8 | 功能描述:電流和電力監(jiān)控器、調節(jié)器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| 90E25PYGI | 功能描述:電流和電力監(jiān)控器、調節(jié)器 FOR SINGLE PHASE METER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
| 90E25PYGI8 | 功能描述:電流和電力監(jiān)控器、調節(jié)器 FOR SINGLE PHASE METER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Current Regulators 電源電壓-最大:48 V 電源電壓-最小:5.5 V 工作溫度范圍:- 40 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:HPSO-8 封裝:Reel |
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