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PDF HA13631T Data sheet ( Hoja de datos )
| Número de pieza | HA13631T | |
| Descripción | CD-ROM Combo Driver | |
| Fabricantes | Hitachi Semiconductor | |
| Logotipo |  |
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HA13631T
CD-ROM Combo Driver
ADE-207-320 (Z)
1st Edition
Feb. 2000
Description
The HA13631T is combination of Spindle, Forcus, Tracking, Slide, Tray designed for CD-ROM and have
following functions and features.
Functions
• 1.5 A spindle driver
• 0.75 A focus driver
• 0.75 A tracking driver
• 1.0 A slide driver
• 0.75 A tray driver
• Over temperature shut down (OTSD)
Features
• Corresponds to both of sensor motor and sensorless motor
• All direct PWM drive
• Low on resistance
• Low power dissipation
• Small thin surface mount package
1 page  
Block Diagram
HA13631T
U V W CT
27
31
32
33
34
35
26
COMM 23
VCTL 36
BRKSEL 24
CE 25
Rt
38
39
Ct1
REFIN 37
OP1IN 53
FCSIN 52
OP2IN 44
TRKIN 45
OP3IN 3
SLDIN 2
OP4IN 4
TRYIN 6
VSS FGOUT
43 22
EXTCOM
21
Zero cross
detection
CLK
Logic
VSPN
30
U
1.5 A
SPN V
output
W
ENABLE
SPN
FCS
TRK
SLD
TRY
CLK
OSC
CLK
PWM
control
OTSD
Vref
PWM
carrier
Vbst
Bias
+
− OP1
+
− OP2
+
− OP3
PWM
control
PWM
control
Vbst
P
FCS
N
Vbst
P
TRK
N
PWM
control
Vbst
P
SLD
N
+
− OP4
5k
42 1 28
SGND
PWM
control
Vbst
29 56
P
TRY
N
9
17
19
20
Rnf
18
C104
41
40
Ct2
16
C103
15 BP2
14 BP1
13
49 VFCS
50
51
C103
47
46
48
5 VSLD
7
M
8
54
55
10 VTRY
11
M
12
5
5 Page 
HA13631T
External Components
Parts No.
Reccomended Reccomended
Value
Range
Purpose
Note
R101a~d
2.4 kΩ
≤ 22 kΩ
Filter resistor and atenuation for B-EMF
1
R102a~d
7.5 kΩ
≤ 22 kΩ
Filter resistor and atenuation for B-EMF
1
R103, R104 —
≤ 220 kΩ
for FCS driver gain setting
R105, R106 —
≤ 220 kΩ
for TRK driver gain setting
R107, R108 —
≤ 220 kΩ
for SLD driver gain setting
R109, R110 —
≤ 220 kΩ
for TRY driver gain setting
5
Rnf
0.25 Ω
≥ 0.25 Ω
SPN driver current detection resistor
2
Rt
6.8 kΩ
≥ 5 kΩ
Reference current setting
C101
—
≥ 0.1 µF
for Power supply by passing
C102
0.1 µF
—
for Booster pumping
C103
0.47 µF
—
for Booster output smoothing
C104
2200 pF
—
for PWM carrier oscillation DC level adjustment
C105a~d
0.1 µF
—
for B-EMF filter
1
Ct1 100 pF —
Time constant for CLK oscillation
3, 4
Ct2 400 pF —
PWM carrier generation time constant
3, 4
Notes: 1. The values of R101a~d, R102a~d, and C105a~d are determined by the following equation.
Where, Nomax : Maximum rotation speed (rpm)
P : Number of spindle motor poles (Total number of S poles and N poles)
R101
R102
≥
1
4
(at Vspn = 5 V)
C105x =
11
Nomax P
1
R101x
+
1
R102x
2. The output current maximum value Iospnmax of SPN driver is controlled according to the
following equation. However, Vspncl is the current limiter reference voltage. (See the electrical
characteristics)
Iospnmax =
Vspncl
Rnf
3. The CLK oscillation frequency fclk and Rt1 ⋅ Ct1 are related by the following equation.
fclk
=
2
Ct1
Rt
Vrt
(Vct1h
−
Vct1l)
Where, Vrt : RT pin voltage (See the electrical characteristics)
Vct1h : CT1 pin high voltage (See the electrical characteristics)
Vct1l : CT1 pin low voltage (See the electrical characteristics)
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet HA13631T.PDF ] | |
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