In single-phase BLDC motor applications such as fans and water pumps, engineers often face these pain points:

• Narrow voltage compatibility, making it difficult to support 3.3V / 12V / 24V multi-platform systems

• High driving noise and strong startup surges, degrading user experience

• Complex peripheral circuits and cumbersome debugging, leading to long development cycles

• Incomplete protection features, with device damage easily caused by stall, overcurrent and overtemperature

Junmin Tech's flagship ACM6252 is a highly integrated single-phase BLDC driver with built-in H-bridge MOSFETs and external single-Hall control, supporting selectable square-wave or sine-wave drive.

It solves the above challenges in one stop, making motor drive simpler, more stable, and quieter.

• Operating Voltage: 3.1V–24V, Absolute Voltage Rating: 30V

• Continuous Phase Current: 1.2A@12V / 0.8A@24V

• Built-in 5V LDO with 30mA output, directly powering Hall sensors and peripheral circuits.Perfectly compatible with 3.7V lithium battery, 12V/24V industrial, home appliance, automotive and other multi-voltage platforms.

• Supports PWM soft switching, with selectable square-wave / sine-wave / quasi-sine-wave drive modes.

• Adjustable soft-start via SS pin: startup duty cycle and ramp rate configurable to suppress inrush current.

• Soft commutation switching greatly reduces vibration and EMI noise, making fans and water pumps quieter and more efficient.

1. The SPEED pin supports:

   PWM duty cycle speed control (0.1–100kHz)

2. External analog voltage speed control

3. 2-stage programmable speed curve slope:Fine configuration via DI_MIN / DO_MIN / DO_MID / DIO_MAX pins

4. Supports two modes for low duty cycle: shutdown / non-shutdown, adapting to different control logic.

5. FG/RO status output: real-time feedback of motor running / stall status for convenient system monitoring.

ACM6252 integrates multiple hardware protections to withstand abnormal operating conditions:

✅ Why choose the ACM6252?