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零件编号 | CQ-2232 | ||
描述 | High-Speed Small Current Sensor | ||
制造商 | Asahi Kasei Microsystems | ||
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[CQ-2232]
CQ-2232
High-Speed Small Current Sensor
1. Genaral Description
CQ-2232 is an open-type current sensor using a Hall sensor which outputs the analog voltage proportional
to the AC/DC current. Quantum well ultra-thin film InAs (Indium Arsenide) is used as the Hall sensor,
which enables the high-accuracy and high-speed current sensing. Simple AI-Shell package with the Hall
sensor, magnetic core, and primary conductor realizes the space-saving and high reliability.
2. Feartures
- Bidirectional type
- Electrical isolation between the primary conductor and the sensor signal
- 3.3V single supply operation
- Ratiometric output
- Low variation and low temperature drift of sensitivity and offset voltage
- Low noise output: 1.2mVrms (typ.)
- Fast response time: 1μs (typ.)
- Small-sized package, halogen free
- Standards: IEC/UL 60950-1, UL 508, CSA C22.2 No. 14
IEC 62109 (certification pending)
MS1566-E-01
-1-
2014/04
[CQ-2232]
11.5. Temperature Drift of Offset Voltage Vof-d [mV]
Temperature drift of offset voltage is defined as the drift value between the offset voltage (Vof) at Ta=Ta1
(−40C ≤ Ta1 ≤ 110C) and the Vof at Ta=35C, and calculated from the formula below:
Vof-d = Vof(Ta = Ta1) − Vof(Ta = 35C)
Reference data of the temperature drift of offset voltage of CQ-2232 is shown in Figure 7.
10
8
VDD = 3.3V
I = ±21A
6
4
2
0
-2
-4
-6
-8
-10
-60 -40 -20 0 20 40 60 80 100 120
Ta [C]
100
80
VDD = 3.3V
IIN = 0A
60
40
20
0
-20
-40
-60
-80
-100
-60 -40 -20 0 20 40 60 80 100 120
Ta [C]
Figure 6. Temperature drift of sensitivity
(for reference, n=3)
Figure 7. Temperature drift of offset voltage
(for reference, n=3)
11.6. Rise Response Time tr [µs], Fall Response Time tf [µs]
Rise response time (or fall response time) is defined as the time delay from the 90% (or 10%) of input
primary current (IIN) to the 90% (or 10%) of the VOUT voltage (VOUT) under the pulse input of primary
current (Figure 8).
IIN IIN
VOUT
90% IIN
Time
VOUT
10% IIN
Time
90% VOUT
tr
Time
Rise response time (tr)
10% VOUT
tf
Time
Fall response time (tf)
Figure 8. Definition of response time
MS1566-E-01
-8-
2014/04
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页数 | 15 页 | ||
下载 | [ CQ-2232.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
CQ-2232 | High-Speed Small Current Sensor | Asahi Kasei Microsystems |
CQ-2233 | High-Speed Small Current Sensor | Asahi Kasei Microsystems |
CQ-2234 | High-Speed Small Current Sensor | Asahi Kasei Microsystems |
CQ-2235 | High-Speed Small Current Sensor | Asahi Kasei Microsystems |
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