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參數資料
| 型號： | 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(主軸電機和五通道電機驅動器) |
| 中文描述： | CD MOTOR DRIVER, PQFP52 |
| 封裝： | 14 X 14 MM, HEAT SINK, QFP-48 |
| 文件頁數： | 12/21頁 |
| 文件大小： | 210K |
| 代理商： | FAN8725 |
FAN8725 (KA3025)
12
2. SHORT BRAKE
When the pick-up mechanism moves from the inner to the outer spindle of the CD, the Brake function of the reverse voltage is
commonly employed to decrease the rotating velocity of the Spindle Motor.
However, if the Spindle Motor rotates rapidly, the Brake function of the reverse voltage may produce much heat at the Drive
IC.
To enhance the braking efficiency, the Short Brake function is added to FAN8725. When the Short Brake function is activated,
all upper Power TRs turn off and all lower Power TRs turn on, so as to make the rotating velocity of the motor slow down. But
FG and DIR functions continue to operate normally.
3. POWER SAVE
When PowerSave(PS) function is activated, the chip is deactivated.
Pin # 43
HIGH
LOW
Short Brake
ON
OFF
Pin # 44
HIGH
LOW
Power Save
Motor Drive Ouput Activated
Sleep mode
43
Vcc
ON
OFF
20K
1K
MOTOR
OFF
ON
13
14
15
44
Vcc
Start
Stop
30K
40K
IC bias
相關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)] |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN8727 | 功能描述:馬達/運動/點火控制器和驅動器 BTL Motor Drive IC 3Phase BLDCM+4CH RoHS:否 制造商:STMicroelectronics 產品: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/運動/點火控制器和驅動器 BLDC+ 4Ch BTL Driver RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| FAN8729 | 功能描述:馬達/運動/點火控制器和驅動器 BLDC+4CH BTL RoHS:否 制造商:STMicroelectronics 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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