- 您现在的位置：买卖IC网 > PDF目录20625 > CS5461A-ISZR (Cirrus Logic Inc)IC ENERGY METERING 1PHASE 24SSOP PDF资料下载
参数资料
| 型号： | CS5461A-ISZR |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 18/44页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING 1PHASE 24SSOP |
| 标准包装： | 1,000 |
| 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： | 带卷 (TR) |
| 配用： | 598-1552-ND - BOARD EVAL & SOFTWARE CS5461A |
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页当前第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页第41页第42页第43页第44页
CS5461A
t edg e
E1
E2
...
...
P o s it iv e E n e r g y
N e g a t iv e E n e r g y
Figure 6. Stepper Motor Format on E1 and E2
...
...
energy level, the energy output pins (E1 and E2) alter-
nate changing states (see Figure 6). The duration
(t edge ) between the alternating states is defined by the
transfer function:
alternating polarity occurs during the accumulation peri-
od (e.g. random noise at zero power levels), the accura-
cy of the registered energy will be maintained.
For high-frequency pulse output formats (i.e. normal
----------------------
t
edge
? sec ?
=
1
FREQ E
and alternate pulse formats), the active power is accu-
mulated over time until a ? 8x buffer is defined. Then,
when the designated energy level is reached, a pulse is
= ---------------------------------------------
? ? MCLK ? ? K ? ? 1024
FREQ E ? VREFIN
100 ? 2.5
0.132 ? 10 ? 0.1125 ? 10
The direction the motor will rotate is determined by t he
order of t he state changes. When energy is positive, E1
will lead E2. When energy is negative, E2 will lead E1.
The Pulse Width Register (PW) does not affect the step-
per motor format.
5.4.5 Pulse Output E3
The pulse output E3 is designed to assist with meter cal-
ibration. The pulse-output frequency of E3 is directly
proportional to the active power calculated from the in-
put signals. E3 pulse frequency is derived using a sim-
ular transfer function as E1, but is set by the value in the
PulseRateE 3 Register .
The E3 pin outputs negative and positive energy, but
has no energy direction indicator.
The pulse width of E3 is configurable. The PulseWidth
register defines the pulse width of E3 in units of 1/OWR
or:
PulseWidth
t pw
The default value is 0.
5.4.6 Anti-creep for the Pulse Outputs
Anti-creep allows the measurement element to maintain
an energy level, such that when the magnitude of the
accumulated active power is below this level, no energy
pulses are output. Anti-creep is enabled by setting bit
FAC in the Control Register for E3 and bit EAC in the
Control Register for E1 and E2.
For low-frequency pulse output formats (i.e. mechanical
counter and stepper motor formats), the active power is
accumulated over time. When a designated energy lev-
el is reached (determined by the transfer function) a
pulse is generated on E1 and/or E2. If active power with
18
generated on E1 and/or E2. For pulse outputs with high
frequencies and power levels close to zero, the extend-
ed buffer prevents random noise from being registered
as active energy.
5.4.7 Design Examples
EXAMPLE #1:
The maximum rated levels for a power line meter are
250 V rms and 20 A rms. The required number of puls-
es per second on E1 is 100 pulses per second (100 Hz),
when the levels on the power line are 220 V rms and
15 A rms.
With a 10x gain on the voltage and current channel the
channel inputs, the maximum rated rms input levels will
register 0.6 in V RMS and I RMS by design. Therefore the
voltage level at the channel inputs will be 150 mV rms
when the maximum rated levels on the power lines are
250 V rms and 20 A rms.
Solving for PulseRateE 1,2 using the transfer function:
2
VIN ? VGAIN ? IIN ? PF
PulseRateE 1 , 2 = -------------------------------------------------------------------
Therefore with PF = 1 and
VIN = 220V ? ? ? 150mV ? ? ? 250V ? ? = 132mV
IIN = 15A ? ? ? 150mV ? ? ? 20A ? ? = 112.5mV
the PulseRateE 1,2 Register is set to:
2
PulseRateE = ----------------------------------------------------------------- = 420.8754Hz
DS661F3
相关PDF资料 |
PDF描述 |
|---|---|
| 591D337X0010R2T20H | CAP TANT 330UF 10V 20% 2824 |
| MCP1416T-E/OT | IC MOSFET DVR 1.5A HS TSOT23-5 |
| LT3694EUFD-1#TRPBF | IC REG TRPL BUCK/LINEAR 28QFN |
| LT3694EUFD#TRPBF | IC REG TRPL BUCK/LINEAR 28QFN |
| LT1939EDD#PBF | IC REG DL BUCK/LINEAR 12DFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CS5461-IS | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Single Phase Bi-Directional Power/Energy IC |
| CS5461-ISZ | 制造商:Cirrus Logic 功能描述:PWR MEASUREMENT 24SSOP - Rail/Tube |
| CS5461-ISZR | 制造商:Cirrus Logic 功能描述:PWR MEASUREMENT 24SSOP - Tape and Reel |
| CS5462 | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:LOW COST POWER ENERGY IC WITH PULSE OUTPUT |
| CS5462-IS | 功能描述:电流和电力监控器、调节器 Low-Cost Pwr/Energy w/Pulse Output 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 |
发布紧急采购，3分钟左右您将得到回复。