Datasheet > EUM6861_12

EUM6861_12

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	177K
描述
18V PWM Fan Motor Driver

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中文翻译

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数据手册

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EUM6861_12 数据手册

EUM6861/A/B/C

18V PWM Fan Motor Driver

DESCRIPTION

FEATURES

EUM6861/A/B/C is a fan motor driver for the single

coil brushless DC motor. With its high efficient direct

PWM control mode, EUM6861/A/B/C controls the

speed of brushless DC motor with a built in HALL IC

interface. EUM6861/A/B/C is suitable to drive variable

speed motors for personal computer’s power supply

radiation fans and CPU coolers.

ꢀ

Built in 18V Full-wave Motor Driver for Fan

Motor

Built in Input Surge Protection, No Zener Diode

Need

External Programmable Soft Start and Soft

Restart Function

ꢀ

Wide Input Range 3V~18V

PWM Fan Speed Control

EUM6861/A/B/C integrates PWM fan speed control,

minimum speed mode, soft start, fan tachometer, lock

protection, auto restart and Hall Bias functions. PWM

mode controls fan speed in low noise and low vibration

ways by adjusting RCTL voltage. EUM6861/A/B/C

can set minimum fan speed by presetting RMIN

voltage. With soft start function, EUM6861/A/B/C can

drive motor from slow speed to fast speed in a settable

time by setting the external capacitor between SS and

GND. If a fan motor 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. If the lock persists,

EUM6861/A/B/C shuts off power devices for a few

seconds. The lock protection delay time is externally

programmable by a capacitor. EUM6861/C has built in

motor rotation speed feedback (FG) output, motor

rotation detection (RD) output and Hall sensor bias

output.

Programmable Minimum Fan Speed

Built in Soft Switching Function

Built in Hall Bias

Lock Protection and Auto Restart

Fan Rotation Speed Feedback FG Output

(EUM6861/B/C)

ꢀ

Fan Rotation Detection RD Output

(EUM6861/A/C)

ꢀ

Thermal Shutdown Protection

Available in TSSOP-16 and TDFN-14 Packages

RoHS Compliant and 100% Lead (Pb)-Free

Halogen-Free

APPLICATIONS

ꢀ

Personal Computer’s Power Supply Radiation

Fans and CPU Coolers

Application Circuit

Figure 1. TSSOP -16 Typical Application Circuit

DS6861/A/B/C Ver1.4 Feb. 2012

中文翻译

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与EUM6861_12相关器件

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EUM6862	EUTECH	获取价格	24V PWM Fan Motor Driver
EUM6867	EUTECH	获取价格	PWM Pre Driver for DC Fan Motor
EUM6883	EUTECH	获取价格	800mA BTL Linear Fan Motor Driver
EUMA10-01.8432M	ECLIPTEK	获取价格	QUARTZ CRYSTAL RESONATOR, 1.8432MHz, ROHS COMPLIANT PACKAGE-2
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
EUMA10-01.8432M-G	ECLIPTEK	获取价格	QUARTZ CRYSTAL RESONATOR, 1.8432MHz, ROHS COMPLIANT PACKAGE-2
EUMA10-01.8432M-GA	ECLIPTEK	获取价格	QUARTZ CRYSTAL RESONATOR, 1.8432MHz, ROHS COMPLIANT PACKAGE-2
EUMA10-01.8432M-GTR	ECLIPTEK	获取价格	QUARTZ CRYSTAL RESONATOR, 1.8432MHz, ROHS COMPLIANT PACKAGE-2

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