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RT8749A Datasheet Digital Single-phase Full Wave Bldc Fan Controller

Manufacturer: Richtek

Overview: ® RT8749A Digital Single-Phase Full Wave BLDC Fan Controller.

Datasheet Details

Part number RT8749A
Manufacturer Richtek
File Size 134.10 KB
Description Digital Single-Phase Full Wave BLDC Fan Controller
Datasheet RT8749A-Richtek.pdf

General Description

The RT8749A is a highly integrated digital controlled predriver IC for regulating single-phase full wave brushless DC (BLDC) fans at a programmed speed.

The controller IC accepts a Pulse-Width Modulated (PWM) signal provided by the host.

The decoded duty-ratio will then be used for mapping to the programmed speed which is stored at the embedded flash memory.

Key Features

  • including the peak-current limit, the thermal shutdown protection, the under-voltage protection and the motor lock protection. An automatic restart circuit is designed to rotate the motor after the lock condition is released.

RT8749A Distributor