HA13631T Datasheet PDF - Hitachi Semiconductor

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HA13631T
Hitachi Semiconductor

Part Number HA13631T
Description CD-ROM Combo Driver
Page 20 Pages


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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



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HA13631T
Pin Arrangement
ASGND
SLDIN
OP3IN
OP4IN
VSLD
TRYIN
SLDP
SLDN
SLDGND
VTRY
TRYP
TRYN
BSTGND
BP1
BP2
VBST
U
RNF
V
W
EXTCOM
FGOUT
COMM
BRKSEL
CE
HB
HU+
ASGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
(Top view)
56 ASGND
55 NC
54 NC
53 OP1IN
52 FCSIN
51 FCSN
50 FCSP
49 VFCS
48 FCSGND
47 TRKP
46 TRKN
45 TRKIN
44 OP2IN
43 VSS
42 SGND
41 PWMDC
40 CT2
39 CT1
38 RT
37 REFIN
36 VCTL
35 HW-
34 HW+
33 HV-
32 HV+
31 HU-
30 VSPN
29 ASGND
2



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HA13631T
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Pin Name
ASGND
SLDIN
OP3IN
OP4IN
VSLD
TRYIN
SLDP
SLDN
SLDGND
VTRY
TRYP
TRYN
BSTGND
BP1
BP2
VBST
U
RNF
V
W
EXTCOM
FGOUT
COMM
BRKSEL
CE
HB
HU+
ASGND
ASGND
VSPN
HU–
HV+
HV–
Function
Actuator small signal GND
SLD driver control input
Inverted input of OP amp. 3 for SLD driver control
Inverted input of OP amp. 4 for TRY driver control
SLD driver power supply
TRY driver control input
SLD driver P output
SLD driver N output
SLD and TRY driver GND
TRY driver power supply
TRY driver P output
TRY driver N output
Booster GND
Booster pumping capacitor connection
Booster pumping capacitor connection
Booster output pin. This circuit generates a voltage about two times of the VSPN
pin.
U phase output
SPN driver current detection
V phase output
W phase output
COMM signal on/off control and FGOUT switching. (Refer to the Timing Chart)
FG output (Refer to the Timing Chart) open drain
Start-up clock input pin for sensorless (Refer to the Timing Chart)
To select the brake mode (Refer to the Truth Table)
Chip enable (Refer to the Truth Table)
Hall bias switch
U-phase Hall +input, and U-phase B-EMF connection pin for sensorless
Actuator small signal GND
Actuator small signal GND
SPN driver power supply
U-phase Hall –input, and center tap connection pin for sensorless
V-phase Hall +input, and V-phase B-EMF connection pin for sensorless
V-phase Hall –input, and center tap connection pin for sensorless
3



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HA13631T
Pin Description (cont)
Pin No.
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
Pin Name
HW+
HW–
VCTL
REFIN
RT
CT1
CT2
PWMDC
SGND
VSS
OP2IN
TRKIN
TRKN
TRKP
FCSGND
VFCS
FCSP
FCSN
FCSN
OP1IN
NC
NC
ASGND
Function
W-phase Hall +input, and W-phase B-EMF connection pin for sensorless
W-phase Hall –input, and center tap connection pin for sensorless
SPN driver control input
Reference voltage for control inputs. Common to all drivers.
Reference voltage. The IC’s internal reference current is determined by this
voltage and the external resistor Rt.
Time constant for clock oscillation. The oscillator frequency is determined by the
external capacitor and resistor Ct1 and Rt.
Time constant for PWM carrier. The amplitude is determined by the value of the
external capacitor Ct1.
Phase compensation connection pin for matching PWM carrier DC level with
REFIN
SPN small signal GND
Control block power supply. 5 V
Inverted input of OP amp. 2 for TRK driver control
TRK driver control input
TRK driver N output
TRK driver P output
FCS and TRK driver GND
FCS driver power supply
FCS driver P output
FCS driver N output
FCS driver control input
Inverted input of OP amp. 1 for FCS driver control
No connection
No connection
Actuator small signal GND
4



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