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PDF AN8245SCR Data sheet ( Hoja de datos )
| Número de pieza | AN8245SCR | |
| Descripción | Laser Disk Spindle Motor Controller | |
| Fabricantes | Panasonic | |
| Logotipo |  |
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ICs for Motor
AN8245K, AN8245SCR
Laser Disk Spindle Motor Controller
s Overview
The AN8245K and AN8245SCR are speed control drive
ICs of the brushless motors by means of the 3-phase full-
wave current drive system. They are suitable for control-
ling/driving the laser disk spindle motors, LBP polygon
mirror motors, and so on.
s Features
• Operating supply voltage range : VCC1=10.8 to 13.2V
VCC2=10.8 to 22V
• 3-sensor 3-phase full-wave current drive ; power tran-
sistor built-in
• Maximum motor drive current : IMmax.=1.5A
• Digital PLL control
• Bidirectional torque control
• Provided with reverse detector and stop detector
• Synchronizing signal and stop signal output
• Built-in thermal protective and current limiter functions
s Applications
Control and drive of the Hall motors such as laser disk
spindle motors, LBP polygon motors, and so on
AN8245K
1
2
3
4
5
6
7
8
9
10
11
12
12.0±0.3
3.6±0.2
1.8R
24
23
22
21
20
19
18
17
16
15
14
13
Unit : mm
0.8±0.25
4.8±0.25 3.2±0.25
3 ∼15˚
13.8±0.25
0.45±0.1
24-pin Shrunk DIL Plastic Package (SDIP024-P-0550)
AN8245SCR
(6.0)
(4.6)
1 28
Unit : mm
14 15
1.45±0.12
s Block Diagram
0.5 0.7˚
8.4±0.3
11.73±0.3
1.45±0.12
28-pin PANAFLAT Plastic Package (HSOP028-P-0450)
16
VCC1
(12)
20 (17)
VREG/2
17
(14) FG
Amp.
18 –
(15)
+
14 (10)
VREG/2
(19)
15
(11)
Phase Change
21
22 23
24
(18) Error input
(20)
(21)
Error
Amp. Torque Cont.
–
+
Direction
Magnitude
Circuit
(1) 7
Look
Det.
Direction
Logic
Phase Change
Power
U (6) 11
× 3Upper side V (5) 10
Stop Det.
Thermal
Revers Protect
Det.
× 3bottom
Current Limit
W (2) 8
(4)
9
CS
Hall Amp.
VCC2
GND 12 (8)
Regulater
(16)
19
(23) (24) (25)
(26) (27) (28) (9)
1 2 3 4 5 6 13
is Pin No. for AN8245K
( ) is Pin No. for AN8245SCR
1
1 page  
ICs for Motor
s Pin Descriptions (Cont.)
Pin No.
AN8245K AN8245SCR
Pin name
7 NC
12
8
Ground
(GND)
Typical
waveform
Description
Open pin
Ground pin
AN8245K, AN8245SCR
Pin equivalent circuit
Limiter voltage
13 9 control
(CLL)
Pin to change the motor
drive current limiting volt
voltage
CLL
13
(9)
Phase lock signal
14 10 output
(L/S)
Lock detection output pin
by PLL control of the
phase at motor rotation
(10) 14 L/S
Start/brake signal
15 11 input
(S/B)
Start/brake signal input
pin
S/B
15
(11)
FG reference signal
16 12 input
(Ref FG)
FG reference signal input
pin requied for PLL con-
trol
13 NC
17
14
FG amp. output
(FG OUT)
FG amp. inverting
18 15 input
(FG IN)
Regulator voltage
19 16 output
(VREG)
Open pin
Output pin of the FG amp.
Inverting input pin of the
FG amp.
DC Regulator voltage output
8V pin
16
(12)
Ref · FG
18
(15)
FG IN
–
FG OUT
17
(14)
+
VREG
19
(16)
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet AN8245SCR.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AN8245SCR | Laser Disk Spindle Motor Controller | Panasonic |
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