Introduction
Brushless DC motor is developed on the basis of brushed DC motor, which has the advantages of stepless speed regulation, wide speed regulation range, strong overload capacity, good linearity, long life, small size, light weight and large output, which solves a series of problems existing in brushed motors and is widely used in various fields such as industrial equipment, instrumentation, household appliances, robots, medical equipment, etc. Since brushless motors do not have brushes for automatic commutation, an electronic commutator is required for commutation. The brushless DC motor drive fulfills the function of this electronic commutator.
At present, there are three main control methods of mainstream brushless DC motors: square wave control (also known as trapezoidal wave control, 120° control, 6-step commutation control) and sine wave control, FOC (also known as vector frequency conversion, magnetic field vector directional control). Shenzhen Yongfukang Science and Technology***Now vigorously promote a single-phase sine wave square wave brushless DC motor driver IC-ACM6252Operating voltage 31V-18V, working current 12A, It can cover most of the small and medium power (<1A) fan and pump applications.
Product Introduction
The ACM6252 is a single-phase brushless motor driver IC with an external Hall sensor. The built-in motor control algorithm and current detection can control the silent and efficient rotation of the single-phase brushless motor based on Hall signals. Built-in 4 MOS of less than 500M guarantee1Excellent thermal performance at 2A current output. The TSSOP-16 package is pin compatible with the APX9230 M8121The periphery is extremely simple, with less than 10 capacitances.
Product performance
TSSOP-16 package
Supply voltage range: 31v–18v
Output Current: 12a
Integrated Power FET On-Resistance: 500M LS, 500M HS
Speed curve (multi-segment slope optional, minimum speed, maximum speed can be adjusted).
Soft start mode, no starting current overcharge.
Sine wave or square wave drive, user-configurable
Flexible speed control mode (customer optional):
Analog voltage PWM (duty cycle or frequency).
Abundant protection mechanisms: MOS overcurrent motor stall, voltage overshoot, overtemperature, undervoltage and overvoltage
Simplified periphery: Only 4 resistors are required at the simplest level.
ACM6252 Application Information.
1. ACM6252 foot bitmap.
2. ACM6252 pin description.
3. Schematic diagram of ACM6252 DEMO board.
4. ACM6252 DEMO board PCB top-level design drawing.
5. ACM6252 Demo board PCB bottom layer design drawing.
6. ACM6252 DEMO board patch drawing.
7. ACM6252 DEMO board bill of materials.
8. ACM6252 DEMO board physical drawing.