AS5055 Rotary Encoder IC

説明

The AS5055 is a single-chip magnetic rotary encoder IC with low voltage and low power features. It includes 4 integrated Hall elements, a high resolution ADC and a smart power management controller. The angle position, alarm bits and magnetic field information are transmitted over a standard 3-wire or 4-wire SPI interface to the host processor.

The AS5055 is available in a small QFN 16-pin 4x4x0.85mm package and specified over an operating temperature of -20 to +85°C.

主な機能

• 12 bit resolution
• Standard SPI interface, 3 or 4 wire
• 3.0 to 3.6V core voltage, 1.8 to 3.6V peripheral supply voltage
• Automatic wakeup over SPI interface
• Interrupt output for conversion complete indication
• Low power mode:
  < 8mA (avg) @ max readout rate = 620µs
  < 5mA (avg) @ 1ms readout interval
  < 500µA (avg) @ 10ms readout interval
  < 53µA (avg) @ 100ms readout interval

• Small Size: QFN-16 (4x4x0.85mm)

Benefits

• Complete system-on-chip
• Low power consumption
• Low operating voltage
• Easy-to-use SPI interface

ｱﾌﾟﾘｹｰｼｮﾝ

• Servo motor control
• Input device for battery powered devices
• Robotics

Block diagram for AS5055 Rotary Encoder IC