MLX90804S数据手册Melexis中文资料规格书

描述 Description

The MLX90804 is a power control IC for controlling the speed of AC motors bymeans of a triac. The speed settingis done byapplyinga ratio metric voltage at pin SET  (usuallybymeans of a potentiometer). This speed settingis compared with the pulse rate at the SPD input. The input is
compatible with inductive and magnetic detectors. The calculation of the required phase angle is done with a PI regulator, which is fully digital.Features and Benefits
• Low cost - minimal external components
• In PDIL8, PSOP8 or Chip-on-board
• 50/60Hz operation
• Robust digital design:
•  Offeringstable triac control
•  Eliminatingvariations due to changes in analogue parameters
•  No agingand temperature influences
• True PI speed regulator
• No external calibration or adjustment required
• Low power consumption
• Suited for drivingresistive and inductive loads
• Pulse input to measure the motor speed with a low cost coil or a hall sensor
• Motor current sensingfor power limitation
• Adaptable to specific motor and application requirements bymask programming