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參數資料
| 型號： | FAN8705 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | 5 Channel DSC Motor Driver |
| 中文描述： | DISK DRIVE MOTOR CONTROLLER, 0.8 A, QCC40 |
| 封裝： | MLP-40 |
| 文件頁數： | 17/24頁 |
| 文件大小： | 528K |
| 代理商： | FAN8705 |
17
www.fairchildsemi.com
FAN8705 Rev. 1.0.1
F
2. Channel 3
CH3 is constant voltage driver. The output voltage can be calculated by following equations.
When, Gain2 = low,.
when, Gain2 = high
where, V
MOTOR
is motor driving voltage. V
DSON
is drain-source voltage of output lower MOSFET in on time, It’s less than
0.1V@300mA. V
ADJ2
is about 0.75V typically as following equation. can be adjusted by installing external resister R
ADJ2.
Calculated
V
MOTOR
should be less than power supply voltege VM2 for operating constant voltage mode.
3. Channel 4
Channel 4 is operated by saturated H-bridge mode.
V
MOTOR
V
ADJ2
4.9
V
DSON
–
×
V
ADJ2
4.9
×
3.6V
=
≈
=
V
MOTOR
V
ADJ2
1
3
--
4.9
×
V
DSON
–
×
V
ADJ2
1
3
--
4.9
×
×
1.2V
=
≈
=
V
ADJ2
3
4
--
V
ref
×
=
Constant
Voltage
H-bridge
CH3
ADJ2
OUT5
OUT6
VM2
GAIN2
R
R
Vref
IN5,6
2R
4.9X
Iris
R
ADJ2
V
ADJ2
H
L
PGND2
Saturated
H-Bridge
CH4
OUT7
OUT8
VM3
DC
M
IN7
IN8
PGND2
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相關代理商/技術參數 |
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| FAN8725 | 功能描述:馬達/運動/點火控制器和驅動器 BTL Motor Drive IC 3Phase BLDCM+5CH 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 | 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 |
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| 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 |
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