參數(shù)資料
型號: KA3120
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 運動控制電子
英文描述: SPINDLE & VOICE COIL MOTOR ONE CHIP DRIVER
中文描述: VOICE COIL MOTOR CONTROLLER, 2 A, PQFP48
封裝: 14 X 14 MM, HEAT SINK, QFP-48
文件頁數(shù): 6/43頁
文件大?。?/td> 786K
代理商: KA3120
KA3120
HDD PRODUCTS
6
PRELIMINARY
MIC-99D001
January 1999
PIN DESCRIPTION (Continued)
Pin No.
Symbol
I/O
Description
33
PCS
O
Spindle soutput current sensing
34
V
O
Spindle motor V phase output
35
SUBGND
Ground
36
N
I
Spindle motor neutral point
37
U
O
Spindle motor U phase output
38
CCOMP
Spindle output control compensation
39
BRAKE
O
Dynamic brake
40
CBRAKE
Back-EMF charging capacitor for brake power
41
PVCC
12V power line for spindle
42
SENSE12
I
Adjustable for threshold voltage to 12V
43
GND
Ground
44
CNTL1
I
Control input for spindle and brake
45
CNTL2
I
Control input for start-up clock and soft switching
46
CNTL3
I
Control input for VCM Amplifier & retract
47
PWMSP
I
PWM input for spindle speed control
48
CFSP
Filter capacitor for spindle PWM control
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