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| 型号： | CASR 6-NP |
| 厂商： | LEM USA Inc |
| 文件页数： | 14/18页 |
| 文件大小： | 0K |
| 描述： | SENSOR CURRENT 6A 5V MOD |
| 产品培训模块： | CAS Modules Overview |
| 产品目录绘图： | CAS(R) Series Side |
| 标准包装： | 50 |
| 系列： | CASR |
| 电流 - 感应： | 6A |
| 精确度： | ±0.8% |
| 灵敏度： | 104.2mV/A |
| 传感器类型： | 磁通量闸门 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 输出： | 0 ~ 5 VDC |
| 频率： | 300kHz |
| 响应时间： | 300ns |
| 电极标记： | 双向 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 模块 |
| 包装： | 管件 |
| 产品目录页面： | 2809 (CN2011-ZH PDF) |
| 其它名称： | 398-1091-5 |
CASR series
Application information
Filtering and decoupling
Supply voltage V C
The fluxgate oscillator draws current pulses of up to 30 mA at
a rate of ca. 900 kHz. Significant 900 kHz voltage ripple on
V C can indicate a power supply with high impedance. At these
frequencies the power supply rejection ratio is low, and the
ripple may appear on the transducer output V OUT and reference
V REF . The transducer has internal decoupling capacitors, but in
the case of a power supply with high impedance, it is advised
to provide local decoupling (100 nF or more, located close to
the transducer)
Output V OUT
The output V OUT has a very low output impedance of
typically 2 Ohms; it can drive 100 pF directly. Adding series
Rf = 100 Ohms allows much larger capacitive loads. Empirical
evaluation may be necessary to obtain optimum results.
The minimum load resistance on V OUT is 1 kOhm.
Total Primary Resistance
The primary resistance is 0.72 m ? per conductor.
In the following table, examples of primary resistance
according to the number of primary turns.
Reference V REF
Ripple present on the reference output can be filtered with a
low value of capacitance because of the internal 680 Ohm
series resistance. The maximum filter capacitance value is
1 μF.Application information
10 9 8
1 2 3
Number of
primary turns
Primary
resistance
R P [m W ]
Recommended
connections
1
0.24
10
9
8
OUT
IN
1
2
3
2
1.08
10
9
8
OUT
IN
1
2
3
3
2.16
10
9
8
OUT
IN
1
2
3
Page 14/18
8March2012/version 7
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
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