CQ-3 Series
Fast response, Wide band
Small-sized, Insulated
Coreless Current Sensor ICs
with wide product lineup
CQ-3200, CQ-3201, CQ-3202, CQ320A, CQ3203, CQ-3204, CQ-320B
CQ-330G, CQ-3300, CQ-3301, CQ-3302, CQ-330A, CQ-3303, CQ-330H, CQ-330E, CQ-330B, CQ-330F, CQ-330J
Shunt resistor + isolation amplifier or cored current sensor cannot acheive small size, fast response and insultaion all together.
CQ3 series overcome the difficulty. It is achieved to detect overcurrent instantly at insulated place, and adjust to the high carrier frequency
VDD＝5V : CQ-330x
VDD＝3.3V : CQ-320x
Applications
- Home appliances
- Overcurrent detection of Industrial machineries
- Switching power supply
- Power conditioners (DC side)
It is suitable for the application which requires insulation and fast response.
Features
Wide band, Fast response time
CQ3 is composed of ultra-high accuracy compound hall element, which AKM has strengths in.
By using AKM's original hall element, it is achieved wide band frequency and fast response.
As a result, it can instantly detect current when overcurrent flows.
Furthermore, it can also adjust to the high carrier frequency caused by next-generation power devices (GaN/SiC).
Small-sized, Insulated
The CQ3 series adapt an small SOP package (D/W/H:7.6mm×7.9mm×1.15mm).
By developing AKM's original package, both creepage distance and clearance of 5.0mm or more is achieved.
Using the mold resin of CTI=600V, CQ33/CQ32 series achieve reinforced insulation even in 200V system.
It is certified according to IEC/UL60950, IEC/UL62368 and IEC/UL1577, suitable for various industrial applications.
Wide Product Lineup
Wide product lineups can be provided at VDD=5V and 3.3V.
Lineup
CQ-3 Series
| Product Name |
Power Supply Voltage (V) |
Sensitivity (mV/A) |
Linear Sensing Range (A) |
Bipolar/ Unipolar |
Bandwidth (kHz) |
Response time (μs) |
Package size (mm) |
|---|---|---|---|---|---|---|---|
| CQ-3200 | 3.3 | 155 | ±8.5 | Bipolar | 1000 | 0.5 | 7.6 × 7.9 × 1.15 |
| CQ-3201 | 130 | ±10.1 | |||||
| CQ-3202 | 62.5 | ±21.1 | |||||
| CQ-320A | 45 | ±29.3 | |||||
| CQ-3203 | 37 | ±35.7 | |||||
| CQ-3204 | 30 | ±44.0 | |||||
| CQ-320B | 120 | -1.1 to 20.9 | Unipolar | ||||
| CQ-330G | 5 | 450 | ±4.5 | Bipolar | |||
| CQ-3300 | 325 | ±6.4 | |||||
| CQ-3301 | 195 | ±10.7 | |||||
| CQ-3302 | 100 | ±21.0 | |||||
| CQ-330A | 66 | ±31.8 | |||||
| CQ-3303 | 60 | ±35.0 | |||||
| CQ-330H | 50 | ±42.0 | |||||
| CQ-330E | 200 | ±0 to 20.5 | Unipolar | ||||
| CQ-330B | 195 | ±0 to 21.0 | |||||
| CQ-330F | 80 | -2.0 to 42.0 | |||||
| CQ-330J | 82.7 | -2.0 to 42.0 |
Certified with safety standards
Related Contents
Selection Table
| Supply Voltage (V) |
Output Voltage (V) |
Effective Current (Arms) |
Measurement Range (Apeak) |
Bipolar / Unipolar |
Creepage Clearance (mm) |
Working Voltage * (V) |
Product Name | Product Series |
|---|---|---|---|---|---|---|---|---|
| 5.0 | 5.0 | 60 | ± 5.3 to ± 180 |
Bipolar | ≧ 8 | 800 | CZ370x | CZ37 Series |
| 0 to 345.2 | Unipolar | CZ372x | ||||||
| 3.0 | 50 | ± 11.6 to ± 166.6 | Bipolar | CZ3AGx | CZ3A Series | |||
| 3.3 | 3.3 | ± 12.9 to ± 129.1 | CZ3A0x | |||||
| 5.0 | 5.0 | 40 | ± 33 to ± 60 | ≧ 7.2 | 715 | CZ381x | CZ38 Series | |
| 5.0 | 5.0 | 20 | ± 4.5 to ± 42 | Bipolar Unipolar |
≧ 5 | 500 | CQ330x | CQ3 Series |
| 3.3 | 3.3 | ± 8.5 to ± 44 | CQ320x | |||||
| 5.0 | 5.0 | ± 10.7 to ± 42 | AK310x | AK31 Series |
* Pollution Degree II with reinforced insulation
