|
|
PDF LB1823 Data sheet ( Hoja de datos )
| Número de pieza | LB1823 | |
| Descripción | Power Brushless Motor Predriver IC for OA Applications | |
| Fabricantes | Sanyo | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LB1823 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
|
No Preview Available !
Ordering number : EN4263B
Monolithic Digital IC
LB1823
Power Brushless Motor Predriver IC
for OA Applications
Overview
The LB1823 is a predriver IC developed for driving
power brushless motors in office automation applications.
A motor driver circuit with the desired output power
(current and voltage) can be constructed by attaching
either a driver array or discrete components at the output.
The LB1823 output supports direct PWM drive and thus
allows the implementation of low-loss drive circuits.
Additionally, the LB1823 includes several associated
circuits, such as a speed control circuit, and FG amplifier,
and an integrating amplifier, on chip.
Features
• Direct PWM drive output
• Crystal oscillator circuit
• Speed discriminator plus PLL speed control system
• Lock detector output
• Forward/reverse switching circuit
• Braking circuit (short braking technique)
• Start/stop switching circuit
• Over current limiter circuit (OCL)
• Thermal shutdown circuit (TSD)
• Built-in FG amplifier, integrating amplifier
• Shunt regulator output (7.0 V)
Package Dimensions
unit: mm
3196-DIP30SD
[LB1823]
SANYO: DIP30SD
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
13097HA(OT)/83095HA(OT) No. 4263-1/11
1 page  
Sample Application Circuit
LB1823
Unit (capacitance: F)
Truth Table
Item
F/R = L
IN1 IN2 IN3
F/R = H
IN1 IN2 IN3
1H L H L H L
2H L L L HH
3HH L L L H
4LHLHLH
5LHHHL L
6L LHHHL
Note: High (H) for a given input (IN) specifies the state where IN+ > IN–.
Output
Source Sink
VH UL
WH UL
WH VL
UH VL
UH WL
VH WL
The formula below gives the relationship between the crystal oscillator frequency (fOSC) and the FG frequency (fFG).
fFG (servo) = fOSC/(ECL16 divisor × number of counts)
= fOSC/8192
No. 4263-5/11
5 Page 
LB1823
14. Servo constants
The servo constant calculation varies significantly with the motor used, and requires specialized know-how. Thus
this should be handled by the motor manufacturer. We can provide the IC characteristics data required for the servo
constants calculations as well as frequency characteristics simulation data for the filter constants set by the motor
manufacturer. If the resistor between DOUT and INT.IN (R4) is too small, the values of C6 and C7 will become large.
If R4 is too large, speed errors will be likely to occur due to the speed discriminator cutoff current and the integrator
input current. Therefore, we think that a value in the range 10 to 100 kΩ is appropriate. If the resistor between POUT
and INT.IN (R3) is too small, the influence of the PLL system will be too large and pull-in to lock synchronization
will be degraded. Therefore, this resistor should not be too small. (We recommend a value of about 1 MΩ when R4
is 75 kΩ.) First determine the constants for the speed discriminator system only (R4, R5, C6 and C7), and then
determine the value of R3 in the PLL system.
s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
s Anyone purchasing any products described or contained herein for an above-mentioned use shall:
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of January, 1997. Specifications and information herein are subject to
change without notice.
No. 4263-11/11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LB1823.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LB1820 | Office Automation-Use 3-Phase Brushless Motor Driver | Sanyo |
| LB1821 | Power Brushless Motor Pre-Driver IC for OA Equipment | Sanyo |
| LB1821M | Power Brushless Motor Pre-Driver IC for OA Equipment | Sanyo |
| LB1822 | 3-phase Brushless Motor Predriver with Digital Speed Control | Sanyo |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |