Asahi Kasei Microdevices
Your leading manufacturer for innovative sensors.
AKM is the leading provider worldwide of high performance analog and digital ICs, electronic compasses and magnetic sensors, with a key focus on the automotive, industrial, consumer and health & fitness markets.
We offer all Asahi Kasai Microdevices current sensors, gas & CO₂ sensors, and magnetic sensors you need for your application.
Current Sensors
"Currentier" is the brand name of AKM's coreless current sensor IC.
Asahi Kasei Microdevices (AKM), the Hall element leader, has developed advanced current sensors "Currentier" using the high-sensitivity compound semiconductor technology it has cultivated through its Hall elements, combined with Asahi Kasei Microdevices' advanced package design and analog circuit design technologies. The name "Currentier" was made by combining "Current" and "Frontier". AKM named their product Currentier because it is a leading product in the field of current sensors thanks to its superb performance.
"Currentier" is a magnetic open-type current sensor with a built-in high-sensitivity Hall element. They can detect both DC and AC currents quickly and with a high degree of accuracy. Despite their small size, they generate less heat and have high isolation. Currentiers are safe, high performance products that are available in many models and which can be used for current detection in a variety of applications, helping solve your problems. Currentier makes use of the characteristics of AKM's compound semiconductor hall elements in the below two ways.
- High sensitivity hall element → Low-heat generation package → Supports large current
- High sensitivity hall element → Wide signal bandwidth → Fast response
Representative products: CZ37 Series, CZ3A Series
CZ3A Series
Clearance, Creepage distance ≧ 8.0 mm 3.3V Output, High Accuracy Coreless Current Sensor ICs supporting 50 Arms
- The CZ3A series of coreless current sensor ICs has creepage and clearance distances of 8 mm or more, generates less heat, and is accurate.
- The CZ37 series and CZ3A series have the same package profile and support 5V and 3V outputs, respectively.
- The CZ3A series supports 3V output, making it ideal for use with 3V microcontrollers, which have grown in popularity in recent years.
- The CZ3A series has built in dual overcurrent detection with adjustable thresholds. This provides a great deal of control freedom, such as making it possible to use one line for overcurrent detection and the other to perform control using control mode.
Applications:
- AC motors
- DC motors
- UPS (Uninterruptible Power Supply)
- General Inverter (Drives)
- Power Conditioners (DC side)
It is suitable for the application which requires insulation and achieve small size with low heat generation.
Downloads for CZ3A Series
CZ37 Series
Clearance, Creepage distance ≧ 8.0 mm supporting 60 Arms Ultra-high Accuracy Coreless Current Sensor ICs
- The CZ37 series of coreless current sensor ICs has creepage and clearance distances of 8 mm or more, generates less heat, and is ultra-accurate.
- The CZ37 series and CZ3A series have the same package profile and support 5V and 3V outputs, respectively.
- The CZ37 series supports 5V output, making it ideal for products with severe transmission noise.
- The product lineup includes a double-pole detection model (CZ370x) that can be used for many applications such as phase current detection for AC motors and general-purpose inverters, as well as a single-pole detection model (CZ372x) that can be used for DC detection of power conditioners for photovoltaic systems.
Applications Bipolar (CZ370x):
- AC motors
- DC motors
- UPS (Uninterruptible Power Supply)
- General Inverter (Drives)
- Power Conditioners (DC side)
Applications Unipolar (CZ372x):
- Power Conditioners (DC side)
- Various overcurrent detection applications
When measuring current flowing in one direction, higher signal noise ratio can be achieved compared to the bipolar detection type.