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參數資料
| 型號： | FAN8732BG |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| 中文描述： | CD MOTOR DRIVER, PDSO42 |
| 封裝： | SSOP-42 |
| 文件頁數： | 15/20頁 |
| 文件大小： | 322K |
| 代理商： | FAN8732BG |
FAN8732G/FAN8732BG/FAN8732CG
15
4. Power Save & Channel Selection
MUTE/SB logic tables are as below.
5. SB(Short Brake Mode Selection)
When SB pin enabled(low), the brake mechanism of 3-phase spindle driver is changed to short brake.
When short brake is enabled all lower output transistors are turned on and all upper output transistors are turned off, so the cur-
rent due to the motor back EMF(electro motive force) is freewheeled through lower transistors and lower freewheeling diodes.
It is general that the short brake is safer than the reverse brake in high speed applications. But it is not true in all cases because
the current in the short brake is depend on the amount of the motor back EMF. So in high speed applications we suggest an
optimal brake which is our patent. Please contact sales persons or offices if you need more information about the optimal
brake.
6. TSD(Thermal Shut Down)
When the chip temperature rises up to about 160
o
C(degree), all output drivers are shut down. When the chip temperature falls
off to about 130
o
C, then the drivers recover normal operation. TSD has the temperature hysteresis of about 30
o
C.
Logic Input
Drive Change
CH3
off
on
Mute(pin41)
L
L
H
H
SB(pin38)
L
H
L
H
CH1
off
off
CH2
off
off
CH4
off
off
CH5
off
off
spindle
off
off
on
on
off
on
on
on
38
Vcc
OFF
ON
20K
1K
MOTOR
OFF
ON
12
13
14
SHORT BRAKE OPERATING SCHEME
相關PDF資料 |
PDF描述 |
|---|---|
| FAN8732BGX | Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| FAN8732CG | Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| FAN8732CGX | Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| FAN8732G | Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| FAN8732GX | 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 |
|---|---|
| FAN8732BGX | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| FAN8732CG | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| FAN8732CGX | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| FAN8732G | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
| FAN8732GX | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Spindle motor and 5-CH actuator driver [Spindle(PWM), Sled 2-CH(PWM) 3-CH(Linear)] |
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