Datasheet > EUM6804

EUM6804

更新时间： 2024-10-28 11:44:51

品牌	Logo	应用领域
德信 - EUTECH		驱动器风扇电机
页数	文件大小	规格书
2页	152K
描述
PWM Fan Motor Driver with Slope Control and Low Duty Startup

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EUM6804 数据手册

EUM6804

PWM Fan Motor Driver with Slope

Control and Low Duty Startup

DESCRIPTION

FEATURES

EUM6804 is a fan motor driver for brushless DC fan

motor. It integrates three types speed control modes,

low duty startup function, soft switched output, lock

protection, Hall bias, FG output, shutdown mode,

quick restart and TSD. With these modes and functions,

EUM6804 can not only be applied to DC fans which

require different speed curves, but also be applied to

NB and other portable equipments which require

silence and low power dissipation.

ꢀ

Single-Phase Full-Wave Driver System

ꢀ

Three Speed Control Mode

PWM Control Mode

VCC Control Mode with Slope Adjustable

Normal VCC Control Mode

Low Duty Startup

ꢀ

SD = H: Enable Low Duty Startup

SD = L: Disable Low Duty Startup

Soft Switched Drive for Silent Application

Lock Detection and Automatic Restart

Shutdown Mode and Quick Restart

Low Standby Current (PWM = L)

FG Output

The three types speed control modes are PWM control

mode, VCC control mode with slope adjustable,

normal VCC control mode. Low duty startup function

makes it possible for DC fan to start and restart under a

very low PWM duty cycle. Soft switched output drives

DC fan in low noise and low vibration. If a DC fan is

stalled by the external force or obstacles, overdrive

current may incur coil overheat and burning. To

prevent motor from overheating, the lock protection

circuit shuts down the internal power devices for a few

seconds after the motor lock is detected. Then the auto

restart circuit resumes to power up the internal power

devices. EUM6804 has built in Hall IC bias output,

motor rotation speed feedback (FG). With its shutdown

mode and quick restart, EUM6804 consume little

power dissipation during shutdown time and can be

started at once regardless of lock detection time.

ꢀ

Hall Bias Output

Thermal Shutdown Protection

Available in UDFN-10 Package

RoHS Compliant and 100% Lead (Pb)-Free

Halogen-Free

APPLICATIONS

ꢀ

NB Cooling Fan

Silent Fan Motor

ꢀ

Application Circuit

Figure 1. PWM Control Mode

DS6804 Ver0.1 Apr. 2011

中文翻译

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EUMA10-01.8432M-A	ECLIPTEK	获取价格	QUARTZ CRYSTAL RESONATOR, 1.8432MHz, ROHS COMPLIANT PACKAGE-2
EUMA10-01.8432M-CX	ECLIPTEK	获取价格	QUARTZ CRYSTAL RESONATOR, 1.8432MHz, ROHS COMPLIANT PACKAGE-2
EUMA10-01.8432M-CXTR	ECLIPTEK	获取价格	QUARTZ CRYSTAL RESONATOR, 1.8432MHz, ROHS COMPLIANT PACKAGE-2

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