ACM6753 Three-phase Brushless Motor Driver Chip, Unlocking New Possibilities for Low-power Applications

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Quiet & High-efficiency! ACM6753 Three-phase Brushless Motor Driver Chip, Unlocking New Possibilities for Low-power Applications

2026.01.07

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ACM6753 Three-phase Brushless Motor Driver Chip

Integrating High Integration, Low Noise and Multiple Protection Features in One

Are you always bothered by these issues when designing constant-load devices such as fans and water pumps? Excessive motor noise compromising user experience? Complicated peripheral circuits making it hard to reduce product size? High power consumption failing to meet energy-saving requirements? Don’t worry! Here comes ACM6753, a driver chip that integrates high integration, low noise and multiple protection features in one!

Core Highlights, Redefining the Driving Experience

Highly Integrated & Streamlined Design, Saving Space and Effort

The ACM6753 adopts a 24-pin QFN package with a compact size of only 4mm×4mm, which greatly saves PCB layout space. The chip is highly integrated with sensorless three-phase brushless motor drive algorithms, phase current detection circuits, gate drive circuits and power MOSFETs. Eliminating the need for external current-sensing resistors, it features a simplified peripheral circuit and enables more efficient product design. Meanwhile, it integrates 5V and 3.3V LDOs, each capable of delivering 15mA of external output current to directly power external circuits, further simplifying the system architecture.

Silent Drive + Flexible Speed Regulation, Adapting to Multi-scenario Requirements

Equipped with 180° sinusoidal drive technology, it effectively avoids electromagnetic noise interference caused by high-order harmonics, resulting in extremely low motor operation noise and making it particularly suitable for application scenarios with strict silent requirements. It supports 4 flexible speed regulation methods: external analog voltage speed regulation, PWM duty cycle speed regulation, clock frequency speed regulation and I2C register speed regulation, to meet diverse control needs. Among them, the PWM speed regulation frequency can be adjusted between 0.1kHz and 100kHz, and the analog voltage speed regulation resolution reaches 5.8mV, delivering high speed regulation precision.

Multiple Protection Mechanisms, Delivering Unmatched Stability, Reliability and Durability

It provides comprehensive safety protection for both chips and motors: overcurrent protection, locked-rotor protection, overvoltage/undervoltage protection and overtemperature protection are all available. It also features a voltage anti-backflow mechanism to avoid current impact when the motor decelerates or stops abruptly.

The locked-rotor protection current threshold is programmable within the range of 0.4A–3.2A, the overtemperature shutdown threshold is 150℃ with automatic recovery when the temperature drops to 140℃, and the overvoltage/undervoltage protection thresholds are 26.5V and 4.4V respectively, ensuring stable operation of the device under complex working conditions.

Outstanding Low-Power Consumption Advantages, Enabling Longer Endurance

It supports two low-power modes: standby mode and sleep mode. In standby mode, the quiescent current is only 150μA while the internal I2C module remains functional for easy external wake-up. In sleep mode, the quiescent current is as low as 20μA, achieving optimal power consumption efficiency.

Both modes can be flexibly configured via registers, making the chip ideal for battery-powered devices or those with low-power requirements to extend battery life.

Key Parameters at a Glance

Input Voltage Range: 5V–18V, compatible with mainstream power supply scenarios
Phase Current Capability: 3.2A (max.), meeting the requirements of medium-to-high power motors
On-resistance (High-side + Low-side): 200mΩ (typ.) @ 25℃, delivering higher energy efficiency
Operating Temperature Range: -40℃–125℃, adaptable to harsh environments
Speed Indication: FG pin supports electrical/mechanical cycle output with configurable division ratio
Control Interface: I2C interface + SPEED/DIR/BRAKE function pins for easy operation

Wide Range of Applications

Boasting advantages such as high power density, compact size, low noise and low power consumption, the ACM6753 is widely applicable to:

✅ Fan motor drives (cooling fans, desktop fans, etc.)✅ Water pump motor drives (micro water pumps, circulating water pumps, etc.)✅ Other constant-load motor applications

Whether for consumer electronics that pursue ultra-silent performance or industrial equipment that prioritizes stability and reliability, the ACM6753 delivers a highly efficient and well-adapted drive solution. It supports EFUSE parameter programming and storage, and also allows real-time I2C control via an external MCU, balancing the convenience of mass production with design flexibility.

深圳市钧敏科技有限公司

钧敏科技是一家专注于技术开发、方案提供、元器件销售为主的高新技术企业，立足于深圳，成立于2008年。在华东苏州、广东佛山、湖南长沙、香港设有办事处。始终秉承“开拓创新、务实高效”的企业精神。以富足的心态，提供有竞争力的解决方案和服务，持续为客户创造最大价值。

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