Copyright

© ANPEC Electronics Corp.

Rev. A.1 - May., 2016

www.anpec.com.tw

1

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and

advise customers to obtain the latest version of relevant information to verify before placing orders.

Three-Phase Sine-wave Sensor-Less Fan Motor Driver

APX9358P

•

PWM Quasi-Sinusoidal Driver

•

Three-Phase Sensor-Less Drive Method

•

Adjustable Forced Commutation Frequency

(for Start-up)

•

Built-In External PWM Speed Control

•

Built-In Quick Start Function

•

Asynchronous FG (Rotation Speed Detection)

Output

•

Soft Switching Circuit (for Noise Reducing)

•

Power Saving Function (PWM Duty Input is 0%)

•

Built-In Lock Protection and Auto Restart Function

•

Thermal Shutdown Circuit

•

Lead Free and Green Devices Available

(RoHS Compliant)

The APX9358P provides all the circuitry for sensor-less

speed control of three-phase brushless DC motor. The

Sine-wave Driver Method will be better low-noise. The

controller functions include start-up circuit, back-EMF com-

mutation control, Pulse Width Modulation (PWM) speed

control, lock protection, and thermal shutdown circuit.

The APX9358P is suitable for both game machine and

CPU cooler that need silent drivers. It is available in

VTDFN3x3-10 package.

Features

General Description

Applications

•

Motor Driver For Silent Fan Motors

Pin Configuration

VCC 3

10 PWM

FG 1

COM 2

FR 5

9 OSC

7 VO

8 GND

VTDFN-10 3X3

(TOP VIEW)

UO 4

6 WO

= Thermal Pad (connected to the GND

plane for better heat dissipation)