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參數(shù)資料

型號(hào)：	FAN8725
廠商：	FAIRCHILD SEMICONDUCTOR CORP
元件分類：	光電元器件
英文描述：	Spindle Motor and 5-Channel Motor Driver(主軸電機(jī)和五通道電機(jī)驅(qū)動(dòng)器)
中文描述：	CD MOTOR DRIVER, PQFP52
封裝：	14 X 14 MM, HEAT SINK, QFP-48
文件頁(yè)數(shù)：	14/21頁(yè)
文件大小：	210K
代理商：	FAN8725

FAN8725 (KA3025)

On the other hand, if the spindle rotates in forward rotation, the phase relationship is H3->H2->H1 as shown in Fig.(b)

The direction output ,detector is Low, when the spindle rotates forward, and HIGH in the reverse direction.

6. REVERSE ROTATION PREVENTION

1) When the output of the OR Gate, A is LOW, it steers all the output current of the current sense Amp to the Gain Controller

zero. The output current of the Driver becomes zero and the motor stops.

2) As in the state of the forward rotation, the D-F/F output, Q is HIGH and the motor rotates normally. At this state, if the

control input is changed such that EC>ECR, then the motor rotates slowly by the reverse commutation in the Driver. When

the motor rotates in reverse direction, the D-F/F output becomes Low and the OR Gate output, becomes LOW. This pre-

vents the motor from rotating in reverse direction. The operation principle is shown in the table and the flow chart.

(b) Forward rotation

Current

Sense

Amp

Gain

Controller

Driver

D-F/F

H3+

H3-

H2+

H2-

ECR

Low Active

相關(guān)PDF資料	PDF描述
FAN8727	Spindle + 4-CH Motor Drive IC
FAN8728	Spindle + 4-CH Input PWM Motor Drive IC
FAN8729	Spindle+4-CH Motor Drive IC
FAN8729_NL	Spindle+4-CH Motor Drive IC
FAN8732BG	Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)]

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
FAN8727	功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BTL Motor Drive IC 3Phase BLDCM+4CH RoHS:否制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
FAN8727_04	制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle + 4-CH Motor Drive IC
FAN8727_NL	制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle + 4-CH Motor Drive IC
FAN8728	功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BLDC+ 4Ch BTL Driver RoHS:否制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
FAN8729	功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 BLDC+4CH BTL RoHS:否制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube

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