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PDF LV8210W Data sheet ( Hoja de datos )
| Número de pieza | LV8210W | |
| Descripción | A Spindle + CD-ROM Actuator | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LV8210W (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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Ordering number : EN7461A
LV8210W
Bi-CMOS IC
A Spindle + CD-ROM Actuator
Overview
The LV8210W is a DVD-ROM system motor driver.
Features
• Bi-CDMOS
Spindle motor driver
• PWM sensorless
• Built-in short brake
• V-type control amplifier
• Actuator with anti reverse circuit
Actuator
• DWM BTL 3ch built-in
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Power supply voltage
Output block power supply voltage
Predriver voltage (gate voltage)
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
VS max
VG max
IO max
Pd max
Topr
Tstg
Conditions
Independent IC
Ratings
6
6
10
1.0
0.45
-30 to +85
-55 to +150
Unit
V
V
V
A
W
°C
°C
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.
71807 TI PC / 92706 / 52504 JO IM No.7461-1/15
1 page  
LV8210W
Continued from preceding page.
Pin No. Pin name
Function
16
VCOIN
VCO control voltage input. Insert a capacitor between this pin and ground.
A control output proportional to the motor speed is generated in the logic block, and that output charges and discharges the
capacitor inserted between this pin and ground. The VCO frequency is controlled by the voltage on this pin.
17
TGND
GND pin.
18
VCTL
Spindle speed control pin. Positive torque control is applied when greater than VCREF.
19 VCREF Spindle and actuator control reference voltage input pin (1.65V).
20 EI+ Amplifier non-inverting input.
21 EI- Amplifier inverting input.
22 EO Amplifier output pin.
23 IN3 H-bridge 3 control signal input. Outputs are on pin 34 pin 37.
Hduty of OUT3R and OUT3F will be OUT3R<OUT3F when the voltage level at the IN pin is greater than VCREF.
24 CF3 Output pin for H-bridge 3 current feedback circuit.
25
SGND
GND pin.
26 IN2 H-bridge 2 control signal input. Outputs are on pin 38 pin 41.
Hduty of OUT2R and OUT2F will be OUT2R<OUT2F when the voltage level at the IN pin is greater than VCREF.
27 CF2 Output pin for H-bridge 2 current feedback circuit.
28 IN1 H-bridge 1 control signal input. Outputs are on pin 42 pin 45.
Hduty of OUT1R and OUT1F will be OUT1R<OUT1F when the voltage level at the IN pin is greater than VCREF.
29 CF1 Output pin for H-bridge 1 current feedback circuit.
30 S/S Spindle motor block and actuator block start/stop pin. A high-level input : Start
31
BRK
Spindle motor block brake control. Reverse torque braking is applied when this pin is low-level short braking is applied when this
pin is high-level.
32
MUTE
Sets actuator output to the open state. All outputs are in the open state when this pin is low-level.
33 VS3 H-bridge 1 motor power supply. Insert a capacitor between this pin and ground.
34 OUT3R H-bridge 1 reverse output.
35 PGND3 H-bridge 1 output block ground.
36 NC
37 OUT3F H-bridge 1 forward output.
38 OUT2R H-bridge 2 reverse output.
39 VS2 H-bridge 2 motor power supply. Insert a capacitor between this pin and ground.
40 PGND2 H-bridge 2 output block ground.
41 OUT2F H-bridge 2 forward output.
42 OUT1R H-bridge 1 reverse output.
43 PGND1 H-bridge 1 output block ground.
44 VS1 H-bridge 1 motor power supply. Insert a capacitor between this pin and ground.
45 OUT1F H-bridge 1 forward output.
46
WOUT
Output pin. Motor coil is connected to this pin.
47 VOUT
48 UOUT
No.7461-5/15
5 Page 
LV8210W
VCC
+
FG3
FG1
BRK SEL
S/S
GN
CPC1 CP1
VG
Charge pump
COMI
FIL
OSC
VCOIN RMIN RMAX VCO
VCO
PLL
FILTER
ERIN+ ERIN- EROUT
Drive waveform
synthesis and
PWM detect
COM
VS
+
VREF
Sensorless
logic
Commutation
logic
TSD
To VCREF
VCTL
+
-
Spindle Motor Driver Block
-
+
UOUT
VOUT
WOUT
RF1
-
+ RF2
-
+
LV8210W Functional Description and Notes on External Components
The LV8210W is a system motor driver IC that can implement, with just a single chip, the motor driver circuits
required for CD and MD systems. Since the LV8210W provides not only a spindle driver, but drivers (with an H-bridge
structure) for sled, focus, and tracking motors, it can contribute to miniaturization and thinner form factors in end products.
Since the spindle and sled drivers adopt a direct PWM sensorless drive technique, they provide high efficiency motor
drive with a minimal number of external components.
Read the following notes before designing driver circuits using the LV8210W to design a system with fully satisfactory
characteristics.
1. Output Drive Circuits and Speed Control Methods
The LV8210W adopts a synchronous commutation direct PWM drive method to minimize power loss in the output.
Low on-resistance DMOS devices are used as the output transistors. (The upper and lower side output block device
on-resistance is 0.5Ω (typical).)
The LV8210W spindle drivers control system takes an analog input and uses a V-type control amplifier. The V-type
control amplifier based speed control system (gain : 0.25typical) controls the speed by controlling the voltage of the
VCTL pin (pin 18) and the VCREF pin (pin 19). The circuit provides positive torque when VCTL is greater than
VCREF, and allows the application to select either reverse torque braking (when the BRK pin is low) or shortcircuit
braking (when the BRK pin is high) when VCTL is less than VCREF. The PWM frequency is twice the frequency of
the charge pump pulse rate (pin 5).
No.7461-11/15
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet LV8210W.PDF ] | |
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