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PDF LB1896 Data sheet ( Hoja de datos )
| Número de pieza | LB1896 | |
| Descripción | 3-phase Brushless Motor Driver for CD-ROM Spindle Drive Use | |
| Fabricantes | Sanyo | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LB1896 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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Ordering number: EN5225
Monolithic Digital IC
LB1896
3-phase Brushless Motor Driver for
CD-ROM Spindle Drive Use
Overview
The LB1896 is a 3-phase brushless motor driver IC that is
ideal for driving CD-ROM spindle motors.
Functions and Features
v 120 ° voltage linear technique
v V-type control voltage
v Switchable control gain
v Control, noncontrol, acceleration/deceleration mode select
pins built in.
v Start/Stop pin built in, Hall bias built in.
Package Dimensions
unit : mm
3219-QFP34H-C
[LB1896]
Specifications
Absolute Maximum Ratings at Ta = 25 °C
Parameter
Maximum supply voltage
Applied output voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC1 max
VCC2 max
VOU, V, W
IOUT
Pd max
Topr
Tstg
Independent IC
Operating Conditions at Ta = 25 °C
Parameter
Supply voltage
VCref input voltage
VNS input voltage
Symbol
VCC1
VCC2
VCref
VNS
VCC1 ^ VCC2
Conditions
Conditions
SANYO : QFP34H – C
Ratings
20
7.0
20
1.2
0.77
–20 to +75
–55 to +150
Unit
V
V
V
A
W
°C
°C
Ratings
5 to 18
4.3 to 6.5
VCC2/2 ±1.0
0 to VCC2 –1.0
Unit
V
V
V
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
13096HA(II) No.5225-1/8
1 page  
Continued from preceding page.
Pin No.
9
8
Pin Name
CTRLφ
CTRL1
Pin Voltage
0 to VCC2
LB1896
Equivalent Circuit Diagram
Pin Function
v Operation mode switching pins.
v Refer to the Mode Switching Truth Table
for selection of control, acceleration, or
deceleration.
7 NS+
0 to
VCC2 − 1 V
v Input pin at noncontrol mode.
v The input-output gain is 14 dB.
(GC2: LOW)
v Motor stops when VNS = 0 V.
6 S/S
0 to VCC2
v When the S/S pin is HIGH, START;
when LOW, STOP.
v The threshold is VCC2/2.
5 FC
v Connect a capacitor between this pin and
GND to reduce the input/output gain
frequency response and to stop the
oscillator.
1 WIN2
34 WIN1
33 VIN2
32 VIN1
31
30
UIN2
UIN1
1.3 to 2.2 V
W-phase Hall device input pins.
Logic ‘‘H’’ represent WIN1 > WIN2
V-phase Hall device input pins.
Logic ‘‘H’’ represent VIN1 > VIN2
U-phase Hall device input pins.
Logic ‘‘H’’ represent UIN1 > UIN2
Continued on next page.
No.5225-5/8
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet LB1896.PDF ] | |
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