FEATURES • Conductive plastic potentiometer technology, infinite resolution • Servo mount anodized light alloy housing • Precious metal contacts • Stainless steel shaft and bearings • Applicable standards: NFC 93255, MIL R39023 • Material categorization: for definitions of compliance please see www.vishay.com/doc?99912
General Description The AK7452 is a monolithic Hall-Effect Sensor IC that specializes in detecting Rotation angle. A contactless rotary position Sensor is easily designed with a magnet. The AK7452 is only sensitive to the magnetic flux density applied parallel to the IC surface. This is obtained through a magnetic concentrator which is mounted on the Hall-Effect elements. It is advantageous to accurate angular measurements against mechanical Displacement. The AK7452 is the zero latency Rotation angle Sensor to follow Rotation speed up to 25,000rpm by tracking servo architecture. It is suitable for motor controlled applications with an encoder.
Features □ 360° Contactless Angle Sensor □ Simple Magnetic Design □ Extended Industrial Operating Temperature Range : -40°C to +125°C □ Expanded Operating Voltage Range : 3.0 to 5.5V □ Angle Resolution : 14 bit □ Maximum Tracking Rotation Speed : 25,000 rpm □ Angle Linearity Error : ±0.5° (@ 25°C) □ Output Propagation Delay : 1.8µs (@ ABZ Hysteresis “OFF” setting) □ Self-diagnostic Functions : ➢ Under Magnetic Flux Density Detect Function ➢ Tracking Lost Detect Function □ Interfaces: ➢ 4-wire SPI : Absolute Angle Data & User Programming ➢ ABZ Incremental Output ➢ UVW Commutation Output □ User Programming Functions ➢ Zero Degree Point Setting ➢ Magnet Rotation Direction : CCW / CW ➢ ABZ Incremental Output Resolution : up to 4096ppr ➢ Z-phase Pulse Width : 1LSB / 4LSB / 180deg. Point Switch Mode ➢ UVW Commutation Output Resolution : up to 64poles (32 pole pairs) ➢ Angle Error Correction □ Environmental Friendly (RoHS Compliant) ➢ Lead free ➢ Halogen free
Applications Motor Controlled Applications (Robot, Machine tools, Stepping motor, DC brushless motor etc.) Optical Encoder Replacement