參數(shù)資料
型號(hào): KA3120
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類(lèi): 運(yùn)動(dòng)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(yè)數(shù): 13/43頁(yè)
文件大?。?/td> 786K
代理商: KA3120
HDD PRODUCTS
KA3120
13
PRELIMINARY
MIC-99D001
January 1999
ELECTRICAL CHARACTERISTICS (Continued)
(Ta=25
°
C, unless otherwise specified)
Characteristic
Symbol
Test conditions
Min.
Typ.
Max.
Unit
START-UP HOLD CHECK
Start-up hold check1
SHM1
0
0.2
0.5
V
Start-up hold check2
SHM2
0
0.2
0.5
V
START-UP MODE CHECK
Start-up mode check1
STM1
0
0.2
0.5
V
Start-up mode check2
STM2
0
0.2
0.5
V
RUNNING MODE CHECK
BEMF threshold voltage
V
BTH
V
FGH
V
FGL
RM1
65
80
95
mV
FG output high voltage
4.5
4.8
5.0
V
FG output low voltage
0
0.2
0.5
V
Running mode check1
U=V=W=5V, N=100Hz
90
100
110
Hz
Running mode check2
RM2
U=V=W=5V, N=100Hz
90
100
110
Hz
SPINDLE FG GENERATION
FG frequency
FG
U,V,W=120
°
shift pulse(1KHz)
2.9
3
3.1
kHz
FG duty
D
TFG
U,V,W=120
°
shift pulse(1KHz)
45
50
55
%
SPINDLE PWM CONTROL
PWM high level input voltage
V
SPMH
V
SPML
I
PSP1
V
SP2
I
PSP2
V
SP1
V
SPD
V
SP3
I
CFSP1
I
CFSP2
3.0
V
PWM low level input voltage
2.0
V
High input current at PWMSP
PWMSP=100% duty
85
105
125
μ
A
CFSP voltage2(100% duty of PWMSP)
PWMSP=100% duty
1.4
1.7
1.9
V
Low input current at PWMSP
PWMSP=0% duty
125
105
85
μ
A
CFSP voltage1(0% duty of PWMSP)
PWMSP=0% duty
3.1
3.3
3.5
V
CFSP voltage amplitude
1.5
1.6
1.8
V
CFSP voltage3 (50% of PWMSP)
PWMSP=50% duty
2.4
2.5
2.6
V
CFSP charging current
PWMSP=0%, CFSP=2.5V
180
150
130
μ
A
CFSP discharge current
SPMSP=100%, CFSP=2.5V
130
150
180
μ
A
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