Motors & Switches

Safe Cabin

Automotive Motor Rotation / Position Detection

Window / Door / Seat Motor / Brake Light / AFS / Steering Lock / Actuator

Motor Rotation Detection

Window / Door / Seat Motor / AFS

 

Position Detection

Brake Lamp / Steering Lock / Actuator

* AFS (Adaptive Front-lighting System)

Hall-Effect Latches / Switches

Features

Switches (Position Detection)

EM3074: High Accuracy Switch

- High Accuracy Magnetic Density Detection: ±10%

- Variable Switch Point with an External Resistor: 13 to 30mT

- Low Power Operation: Average Current Consumption less than 0.1mA

 

EZ471: Low Sensitivity Switch

- Enhance Tolerant to Disturbance Magnetic Noise with Low Sensitivity

- Switch Point: 26mT (21 to 33mT)

- Wide Operating Voltage: 2 to 24V

Detection Waveform Image of Magnetic Flux Density

Latches (Rotation Detection)

EM6011: High Sensitivity Latch

- Switch Point: 2mT±1mT

- Symmetrical Latch Switch Points: Offset ±0.6mT

 

EW610B: Fast Response Latch

- Switch Point: 3mT (typ.)

- Output Response Time: several μsec (actual value)

- Supply Voltage: 3 to 26.4V

- Output Format: Open Collector

 

AK877x: Onechip Encoder

- Switch Point: 2mT (typ.)

- Supply Voltage: 3.8 to 24V

- Operation Temperature: up to 150°C

- Output Format: Signal output of vertical and horizontal magnetic fields detection

Detection Waveform Image of Magnetic Flux Density

Angle Sensors (Rotation Detection)

① The sensor module can be composed only of a magnet and this sensor. That achieves module miniaturization and cost reduction in shaft-end and off-axis configuration.

② It can be used with both motor shaft and hollow structure in off-axis configuration.

③ It can be used in a low magnetic field from 10 to 70mT in off-axis configuration.

 

AK7401: Shaft-end configuration

- Easy to make a contactless rotation sensor with diametrically magnetized mono-pole magnet

- Angle resolution: 12-bit

- Angle accuracy: Less than ±0.95deg (@25°C)

- Various abnormal detection(memory data check, abnormal magnetic flux density range, etc)

 

AK7405: Shaft-end configuration

- Easy to make a contactless rotation sensor with diametrically magnetized mono-pole magnet

- Angle resolution: 12-bit

- Angle accuracy: Less than ±1.0deg (@25°C)

- Maximum tracking rate: 383rps (23,000rpm)

- Various abnormal detection(memory data check, abnormal magnetic flux density range, etc)

 

AK740X: Off-axis configuration

 Under planning

Shaft-end configuration
Off-axis configuration