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參數資料
| 型號： | FAN8621B |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | 12V Spindle Motor and Voice Coil Motor Driver IC(12V電源的主軸電機和語音線圈電機驅動器) |
| 中文描述： | VOICE COIL MOTOR CONTROLLER, PQFP52 |
| 封裝： | 14 X 14 MM, HEAT SINK, QFP-48 |
| 文件頁數： | 11/22頁 |
| 文件大小： | 427K |
| 代理商： | FAN8621B |
FAN8621B; PRELIMINARY
11
Application Informations
General
The FAN8621B is a stand alone combination chip consisting of Spindle Motor (SPM) and Voice Coil Motor (VCM)circuit for
HDD applications. The speed control of SPM is achieved by internal Synchronous Phase Locked Loop (SPLL). The
FAN8621B supplies adjustable regulated power with external component and signals READY indicating SPM is locked
within some speed range (typically ±0.7% speed error). Current set point is applied by two PWM signals and VCM current is
monitored by external sense resistor. VCM circuit generates 4 voltage references for testing. Fig.1 shows overall interfacing of
FAN8621B with external and HDD motors
Figure 1. Overall Interfacing of the FAN8621B
The control signals have three status and their function is summarized as follows;
Table 1. Control PIN function
Notes:
1. SPM bias + SPM Output Driver enable
2. Makes SPM Open Loop (Start-up) Commutation Signal
3. Test Only when READY is low
Pin Status
Signals
CNTL1
H
Z
L
SPM
Brake
enable
(1)
disable
hard
high
(2)
enable
disable
normal
2
bias enable
disable
Hard
low
(2)
disable
disable
X
X
disable
enable
soft
-
disable
enable
hold
(3)
8
CNTL2
Commutation
Start Clock
VCM
Retract
Start-up hold
Sense Amp gain
CNTL3
GAINSEL
Power
Management
SPM
VCM
Retract/Brake
DIGITAL
ASIC
Interface
POR
CNTL1
CNTL3
PWMH
PWML
GAINSEL
READY
FG
VCMREF4V
Vreg3.3
RPMSEL
TSD
CLK
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相關代理商/技術參數 |
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| FAN8623 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo/Spindle Motor Controller/Driver |
| 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/運動/點火控制器和驅動器 6CH Motor Drive IC 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 |
| FAN8702B | 功能描述:馬達/運動/點火控制器和驅動器 DSC 1CH IC 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 |
| FAN8702MP | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:6 Channel DSC Motor Driver |
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