USA Project | Sensorless BLDC Motor Control IC for Industrial Cooling Fan Systems

1. Project Background

A US-based manufacturer specializing in industrial cooling and ventilation equipment was developing a new generation of sensorless BLDC fan motors.
The customer required a compact, reliable motor control IC capable of operating under wide temperature ranges, with smooth startup, overload protection, and precise speed regulation.

After evaluating multiple control solutions, the customer searched online for “sensorless BLDC motor controller IC with PWM control” and selected JY02A (SSOP-20) as the core control solution.

2. Customer & Application Scenario

• Country: United States 

• Customer Type: Industrial motor & fan manufacturer

• Application:

  • Industrial cooling fans

  • Ventilation systems for factories and data centers

• Motor Type: Sensorless BLDC motor

• Operating Environment: Continuous operation, high reliability requirement

3. Our Solution (Process Flow & Configuration)

Control Solution Design

We provided a complete sensorless BLDC motor control solution based on the JY02A IC, including:

• SPWM drive mode configuration

• Closed-loop current control for stable torque output

• Linear speed adjustment via PWM input

• Soft start and soft reverse logic implementation

System Integration

• SSOP-20 compact package for easy PCB layout

• Compatible with existing 5V control power rails

• Simplified peripheral component design, reducing BOM cost

4. Key Parameters & System Features

• Operating Voltage: 4.5V – 5.5V

• Operating Temperature: -55℃ to +125℃

• Drive Mode: SPWM

• Motor Type: Sensorless BLDC motor

• Key Functions:

  • Overload protection

  • Anti-lock (stall) protection

  • Soft start & smooth reverse

  • Adjustable startup torque

  • Constant current drive

  • Speed signal output

  • JYKJ full-condition safe start technology

  • EAI adaptive motor control

5. Delivery Stage & Customer Feedback

• Delivery Method: Anti-static tape & reel packaging

• Lead Time: 2 weeks mass production delivery

• Customer Feedback:The JY02A IC delivers excellent startup reliability and smooth speed control. System stability improved significantly, and overall motor efficiency exceeded our expectations.

The customer has since adopted JY02A as a standard controller IC across multiple fan product lines.