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PDF LA6503 Data sheet ( Hoja de datos )

Número de pieza LA6503
Descripción CD-ROM Drive Spindle Motor Driver + Sled Motor Driver + Sled Motion/Position Detector IC
Fabricantes Sanyo 
Logotipo Sanyo Logotipo



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No Preview Available ! LA6503 Hoja de datos, Descripción, Manual

Ordering number : EN5791
Monolithic Linear IC
LA6503
CD-ROM Drive Spindle Motor Driver + Sled Motor
Driver + Sled Motion/Position Detector IC
Overview
The LA6503 was developed for CAV control CD-ROM
drives, and provides spindle motor driver, sled motor
driver, and sled motion/position detection circuits.
Functions and Features
• CAV control spindle motor driver
— Three-phase brushless motor driver
— IOmax = 1 A
— Built-in FG output circuit (single Hall detection
output)
— Reverse braking circuit
— Built-in start/stop circuit
— Upper side current detection for minimal loss in the
current detection resistor. Also, the voltage drop in
this resistor reduces the IC internal power
dissipation.
— Built-in thermal shutdown circuit
• Sled motor driver
— One built-in BTL driver channel
— IOmax = 1 A
— Wide dynamic range
— Built-in level shifting circuit
— Muting (output on/off) circuit
— Built-in thermal shutdown circuit
• Sled motion/position detection circuit
— Circuit that provides a pulse output corresponding to
sled motion and position
— This circuit emits 96 pulses for each rotation from
a 24-pole magnet and 90° phase difference Hall
element motors, and thus detects the distance
moved. It also provides two 48-pulse outputs with
differing phases such that the motion direction can
be detected from the phase difference between those
signals.
• Hall bias power supply
— Generates the Hall element 3-V bias voltage.
— IOmax = 30 mA, typical
Package Dimensions
unit: mm
3219-QFP34H-C
[LA6503]
SANYO: QFP34H-C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
31398HA (OT) No. 5791-1/8

1 page




LA6503 pdf
LA6503
Pin Functions
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
34
Symbol
SLED OUT+
SLED OUT
P-GND
P-GND
SLED-IN
VCC (5 V)
VREF
UIN–
UIN+
VIN–
VIN+
WIN–
WIN+
VHB (3Vreg)
HB
HB+
HA
HA+
S-GND
P-GND
P-GND
MUTE
START/STOP
FC
VC
WOUT
VOUT
UOUT
RF
FG
VM (12 V)
POUT
ROUT
QOUT
Function
Sled motor noninverted output
Sled motor inverted output
Power system ground
Power system ground
Sled motor signal input (The gain is set with a resistor.)
Signal system power supply (5 V)
Reference voltage input
Three-phase spindle motor hall signal input pin (U phase –)
Three-phase spindle motor hall signal input pin (U phase +)
Three-phase spindle motor hall signal input pin (V phase –)
Three-phase spindle motor hall signal input pin (V phase +)
Three-phase spindle motor hall signal input pin (W phase –)
Three-phase spindle motor hall signal input pin (W phase +)
Hall bias output pin (3-V power supply output)
Sled motion distance detection hall element input (HB –)
Sled motion distance detection hall element input (HB +)
Sled motion distance detection hall element input (HA –)
Sled motion distance detection hall element input (HA +)
Signal system ground
Power system ground
Power system ground
Sled motor output muting (output on/off control)
Spindle motor output start/stop (output on/off control)
Phase compensation capacitor connection
Input for the spindle control signal from the ASP
Three-phase spindle motor output (W phase output)
Three-phase spindle motor output (V phase output)
Three-phase spindle motor output (U phase output)
Output current detection
FG signal output
Motor power supply (12 V)
Sled motion position detection pulse output P (96 pulses)
Sled motion position detection pulse output R (48 pulses)
Sled motion position detection pulse output Q (48 pulses)
Mounted on the specified
printed circuit board
Independent IC
Ambient temperature, Ta – ˚C
No. 5791-5/8

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