參數(shù)資料
型號: FAN8623
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 運(yùn)動控制電子
英文描述: 12V Spindle Motor and Voice Coil Motor Driver(12V電源的主軸電機(jī)和語音線圈電機(jī)驅(qū)動器)
中文描述: VOICE COIL MOTOR CONTROLLER, 1.2 A, PQFP52
封裝: 14 X 14 MM, HEAT SINK, QFP-48
文件頁數(shù): 25/35頁
文件大?。?/td> 443K
代理商: FAN8623
FAN8623; PRELIMINARY
25
The transconductance of VCM amplifier gain, Gm, is:
Therefore Aloop >>1,
The transconductance (Gm) can be adjusted by selecting the external components R18, R25 and sense resister Rsense.
if R15 = R24, Rsense = 1
1 / AS = 0.45
VCM current (I
VCM
) is:
Notes:
PWMH = 1 when 100% duty
PWMH = 0.5 when 50% duty
PWMH = 0 when 0% duty
Retract Circuit
The retract function is the operation where the VCM moves from the data zone to the parking zone. It is off in the normal state.
It operates when power interrupt cause the spindle to stop.
Gm
I
Vin
------------
2 R15 Rsense As Aerror Apower
R15
R24
+
(
)
Z
VCM
(
Rsense
+
)
+
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
=
=
Gm
Aloop
+
R15
(
1
-------------------------
R15
R24
----------
Rsense
)
Z
VCM
(
---------------------
As
Rsense
+
------
=
Aloop
+
)
----------------------------------------------------------------------------------
=
Gm
----------
---------------------
------
2
Imotor
4
PWMH
0.5
(
)
64
------
PWML
(
0.5
)
+
×
R15
----------
Rsense
---------------------
×
AS
-------
×
×
=
相關(guān)PDF資料
PDF描述
FAN8700 Camera Motor Drive and Control IC
FAN8702 6 Channel DSC Motor Driver
FAN8702B DUO-MODULAR TERM.WK 4/D2/2U/V0
FAN8702MP 6 Channel DSC Motor Driver
FAN8702MPX 6 Channel DSC Motor Driver
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FAN8700 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Camera Motor Drive and Control IC
FAN8702 功能描述:馬達(dá)/運(yùn)動/點(diǎn)火控制器和驅(qū)動器 6CH Motor Drive IC 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
FAN8702B 功能描述:馬達(dá)/運(yùn)動/點(diǎn)火控制器和驅(qū)動器 DSC 1CH IC 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
FAN8702MP 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:6 Channel DSC Motor Driver
FAN8702MPX 功能描述:馬達(dá)/運(yùn)動/點(diǎn)火控制器和驅(qū)動器 6CH Motor Drive IC 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