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PDF HA13558AFH Data sheet ( Hoja de datos )
| Número de pieza | HA13558AFH | |
| Descripción | CD-ROM Combo Driver | |
| Fabricantes | Hitachi | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HA13558AFH (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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heet4U.comHA13558AFHCD-ROM Combo Driver
.DataS ADE-207-235C (Z)
ww 4th Edition
w November 1, 1997
mDescription
.coThe HA13558AFH is combination of Spindle, Forcus, Tracking, Slider, Tray designed for CD-ROM and
have following function and features.
UFunctions
t4• 1.5 A sensorless spindle driver
e• 0.5 A BTL forcus driver
• 0.5 A BTL tracking driver
e• 1.5 A H bridge slider motor driver
h• 1.0 A H bridge tray motor driver
• Amplitude detector circuit
S• Over temperature shut down (OTSD)
taFeatures
a• Sensorless spindle driver
.D• Soft switching Drive
www www.DataSheet4U.com• Low output saturation voltage (spindle)
1 page  
Block Diagram
HA13558AFH
U
V
W
B-EMF
detection
Ccom
47
COMM
C103
2
AGC
PHASE
(Open colector)
16
BRKSEL 5
VCTL 4
CE 22
Rref
1
Cclk
48
C104
C105
39
37
40
Start-up
circuit
CLK
OSC
Bias
VSPN
41
Commutation
U
1.5A
SPN V
Output
W
VBST
Forward or
Brake
Vspncl
CLK
Curent
control
OTSD
VBST
FCSIN 7
(VFCS—0.7)/2
0.5A
BTL
P
N
34
33
SPN
32
36 CT
31 RNF Rnf
C102
35 PC
38 VPS
44 BESENS
17 VFCS
9
8
FCS
TRRIN 6
REF 3
COMPAOUT
(Open colector)
15
SLDIN 21
Csld
25
TRYIN 24
TRYDIR 23
SLD
Control
Vsldcl
0.5A
BTL
P
N
Amplitude
detection
P
1.5A
H Bridge
N
P
0.5A
H Bridge
N
11
TRR
10
13 COMPAIN
14 COMPAVTH
20 VSLD
26
M SLD
27
Rs
28
29
M TRY
30
TAB
5
5 Page 
HA13558AFH
3. Determine this value using the following formula as a guideline. Vr1 is the VR1 (pin 7) voltage
(See the electrical characteristics table.) and ∆Vthclk is the potential difference between the
upper and lower Vth. (∆Vthclk is about 1.0 V)
Cclk
=
16
•
fclk •
Vr1
Rref
•
∆Vthclk
Also, the maximum spindle rotation speed depend on the Cclk as following figure.
8000
7500
7000
6500
6000
5500
5000
4500
4000
20
Cclk vs.Nmax
Rref = 3.3 kΩ
30 40 50 60 70
Cclk (pF)
4. Determine this value using the following formula as a guideline. Here, Vthsld is the SLD control
circuit internal threshold voltage. (See the electrical characteristics table.)
Csld = toffsld • Vr1
8 • Rref • Vthsld
5. The SLD driver maximum output current Iosldmax is determined by the following formula. Here,
Vsldcl is the current limiter reference voltage. (See the electrical characteristics table.)
Iosldmax =
Vsldcl
Rs
11
11 Page | ||
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| PDF Descargar | [ Datasheet HA13558AFH.PDF ] | |
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