AK3101

MP

Ultra-low Noise Coreless Current Sensor

Ultra-low Noise Coreless Current Sensor

MP

Description

AK3101 is an open-type current sensor using a Hall sensor which outputs the analog voltage in proportion to the AC / DC current. Ultra low noise property is realized by a III-V compound semiconductor Hall element of high sensitivity and signal processing technology. In addition, since AK3101 has a coreless structure and does not contain magnetic material, it has no hysteresis and is suitable for audio applications. 
AK3101 is especially suitable for a Motional Feedback system that feedbacks the current of voice coils of the speaker to the amplifier and controls the movement of the voice coils.
AK3101 adopts an ultra-small coreless package which is compliant with safety standards, suitable for applications such as motor control for industrial equipments. Since AK3101 has ultra low noise, it can detect the current by high resolution, which contributes to high-precision torque control of the motor.

Key Features

  • Ultra low noise
    Ultra-low noise is realized by a high-sensitivity compound Hall element and signal processing technology by LSI.
    High detection current resolution, suitable for high-precision motor torque control.
  • Coreless structure
    Since it does not contain a magnetic material, it has no hysteresis and is suitable for audio applications. Especially, it is ideal for a system that controls the movement of the voice coil by feeding back the voice coil current of the speaker (Motional Feedback).
  • Ultra-small coreless package
    Adopts ultra-small coreless package that complies with safety standards.
    We can expect miniaturization of motor control equipment for industrial equipment.

Applications

  •                                 Motor control for industrial equipment, Voice coil control for speakers, etc.
                                

Specifications

Part Number
AK3101
Package Type (Mounting style)
SMD
Maximum Effective Current [Arms]
20
Linear Sensing Range (MIN.) [A]
-10.7
Linear Sensing Range (MAX.) [A]
10.7
Sensitivity [mV/A]
195
Response Time [μsec]
2
Power Supply Voltage (MIN.) [V]
4.5
Power Supply Voltage (TYP.) [V]
5.0
Power Supply Voltage (MAX.) [V]
5.5
Other

                                
Operating Temperature [℃]
-40 to 90
Device Package
SOP
Number of Pins
14

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
Yes
MSL
MSL2a
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
1000
Replacement P/N

                                

Block Diagram

Block Diagram