Ordering number : EN7816B
Monolithic Linear IC
LA6502
Overview
5ch driver for CD and DVD Spindle driver :
3-phase linear sensor-less drive BTL 4ch
This LA6502 is a 5ch driver for CD and DVD Spindle driver : 3-phase linear sensor-less drive BTL 4ch.
Features
•
Spindle driver block
1) 3-phase sensor-less motor driver
2) Soft switching drive
3) Analog input V type control
4) Current limiter incorporated
5) Counter electromotive FG output
6) Reverse prevention circuit incorporated
•
Threading, focusing, tracking, and loading blocks
1) BTL-AMP type
•
Common block
1) Thermal shutdown circuit incorporated (design guarantee)
2) MUTE function incorporated (pin 3)
3) OP-AMP (1ch) incorporated (open collector output)
Specifications
Absolute Maximum Ratings
at Ta = 25°C
Parameter
Motor Supply Voltage 1
Motor Supply Voltage 2
Allowable power dissipation
3
Symbol
VCC1
VCC2
Pd max1
Pd max2
Conditions
SPINDLE, SLED, LOADING power supply
FOCUS, TRACKING power supply
Independent IC
Mounted on a specified board. *
Ratings
14.5
14.5
0.8
1.7
Unit
V
V
W
W
* Mounted on a board : 114.3×76.1×1.6mm , glass epoxy board.
Continued on next page.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be
intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace
instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety
equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case
of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee
thereof. If you should intend to use our products for applications outside the standard applications of our
customer who is considering such use and/or outside the scope of our intended standard applications, please
consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our
customer shall be solely responsible for the use.
Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer
'
s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer
'
s products or
equipment.
60607 MS PC B8-7414 No.7816-1/11
LA6502
Continued from preceding page.
Parameter
Maximum input voltage
Maximum output current 1
Maximum output current 2
Maximum output current 3
Maximum output current 4
Operating temperature
Storage temperature
Symbol
VIN max
IO max1
IO max2
IO max3
IO max4
Topr
Tstg
SPINDLE output
SLED output
FOCUS, TRACKING output
LOADING output
Conditions
Ratings
-0.3 to VCC+0.3
1.0
0.6
0.85
0.6
-20 to +75
-55 to +150
Unit
V
A
A
A
A
°C
°C
Recommended Operating Conditions
at Ta = 25°C
Parameter
Motor Supply Voltage 1
Motor Supply Voltage 2
Symbol
VCC1
VCC2
Conditions
SPINDLE, SLED, LOADING power supply
FOCUS, TRACKING power supply
Ratings
4.5 to 13.8
4.5 to 13.8
Unit
V
V
Electrical Characteristics
at Ta
=
25°C, VCC1 = 8V, VCC2 = 8V, VREF = 1.65V
Parameter
Common
Current drain
Standby current
VREF pin input voltage range
VREF pin input current
MUTE1, 2, 3 L voltage
MUTE1, 2, 3 H voltage
MUTE1, 2, 3 input current
Thermal shutdown operation
temperature
Thermal shutdown hysteresis width
ΔTSD
Designed target value
40
°C
ICC
ICCQ
VREF
IVCREF
VMUTE-L
VMUTE-H
IMUTE
TSD
VMUTE = 3V
Designed target value
150
2.8
60
180
VC = VREF = 1.65V
MUTE1, 2, 3 : H, VC = VREF
MUTE1, 2, 3 : L
1.0
-0.2
-0.1
0.5
4.5
100
210
30
0.3
40
0.5
3.3
mA
mA
V
μA
V
V
μA
°C
Symbol
Conditions
min
Ratings
typ
max
Unit
Note) Design guarantee values, not measured.
Spindle Driver
Output saturation voltage
CTL pin input voltage range
CTL pin input current
Control gain
Control dead zone width 1
Control dead zone width 2
Current limiter voltage
VCOIN input current
VCO min frequency
VCO max frequency
C1,C2 source current ratio
C1,C2 sink current ratio
C1 source, sink current ratio
C2 source, sink current ratio
FGO pin H voltage
FGO pin L voltage
FR pin input voltage range
FR pin input current
Thread driver (AMP3)
Output saturation voltage
Input voltage range
CTL pin input current
Current gain
Output offset voltage
VOSAT_3
VIN_3
IIN_3
GVCO_3
VOOFF_3
Note)
VIN = VREF = 1.65V
IO = 0.3A, Source+Sink
0
-0.5
17.8
-50
-0.1
18.7
0
19.6
50
1.5
1.8
5
V
V
μA
dB
mV
VOSAT_SP
VCTL_SP
IVCTL_SP
GVCO_SP
VCDZ1_SP
VCDZ2_SP
VLIM_SP
IVCOIN_SP
FVCOMIN_SP
FVCOMAX_SP
RSOURCE_SP
RSINK_SP
RC1_SP
RC2_SP
FGOH_SP
FGOL_SP
VFR
IFR
VFR = 3V
VCOIN = 3V
CX = 0.01μF, VCOIN = OPEN
CX = 0.01μF, VCOIN = 5V
1-(IC1 SOURCE/IC2 SOUCE)
1-(IC1 SINK/IC2 SINK)
IC1 SOURCE/IC1 SINK
IC2 SOURCE/IC2 SINK
FGO resistance 20kΩ, 5V pull-up
FGO resistance 20kΩ, 5V pull-up
0
54
0.35
36
-10
-10
40
40
4.8
0.15
0.4
5
100
0.45
40
Forward
Revers
-150
0.36
VC = VREF = 1.65V
0.29
IO =0.5A, Source+Sink
0
-0.2
0.34
+90
-90
0.4
0.44
1
0.55
44
10
10
60
60
1.8
2.4
5
-0.5
0.39
150
V
V
μA
V/V
mV
mV
V
μA
kHz
kHz
%
%
%
%
V
V
V
μA
Continued on next page.
No.7816-2/11
LA6502
Continued from preceding page.
Parameter
Focusing and tracking drivers (AMP1, 2)
Output saturation voltage
Input voltage range
CTL pin input current
Control gain
Output offset voltage
Loading driver (AMP4)
Output saturation voltage
Input voltage range
CTL pin input current
Control gain
Output offset voltage
OP-AMP
Output L voltage
Input voltage range
Input offset voltage
VOL_5
VIN_5
VIOFF_5
IO = 1mA, Sink
0
-5
0
0.2
0.4
5
5
V
V
mV
VOSAT_4
VIN_4
IIN_4
GVCO_4
VOOFF_4
Note)
VIN = VREF = 1.65V
IO = 0.2A, Source+Sink
0
-0.5
17.8
-50
-0.2
18.7
0
19.6
50
1.3
1.6
5
V
V
μA
dB
mV
VOSAT_1
VIN_1
IIN_1
GVCO_1
VOOFF_1
Note)
VIN = VREF = 1.65V
IO = 0.6A, Source+Sink
0
-0.5
11.6
-50
-0.1
12.7
0
13.8
50
1.8
2.2
5
V
V
μA
dB
mV
Symbol
Conditions
min
Ratings
typ
max
Unit
Note) The pre-OPAMP in the previous stage is used as buffer.
MUTE function
MUTE1 : H
MUTE2 : H
MUTE3 : H
SPINDLE : ON
Mode
FOCUS, TRACKING, SLED : ON
LOADENG : ON
Package Dimensions
unit : mm (typ)
3278
2.5
17.8
(6.2)
48
25
Pd max -- Ta
Specified board : 114.3×76.1×1.6mm
3
glass epoxy
Allowable power dissipation, Pd max – W
2.0
1.7
1.5
When mounted on a board
(4.9)
10.5
7.9
0.65
1.02
1.0
0.8
0.5
1
0.65
(0.45)
1.3
0.2
24
0.2
Independent IC
2.4 max
0.48
(2.2)
0
-20
0.1
0
20
40
60
80
100
1.5
SANYO : HSSOP48(375mil)
Ambient temperature, Ta – °C
No.7816-3/11
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