|
|
PDF LB1955 Data sheet ( Hoja de datos )
| Número de pieza | LB1955 | |
| Descripción | Three-Phase Brushless Motor Driver | |
| Fabricantes | Sanyo | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LB1955 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
|
No Preview Available !
Ordering number :EN5452
Monolithic Digital IC
LB1955
Three-Phase Brushless Motor Driver
Functions
• The LB1955 is a 3-phase brushless motor driver IC that
is optimal for applications such as driving the drum
motor in VCRs.
Features
• Current linear drive
• FG and PG free
• Single-voltage power supply
• Built-in AGC circuit
• Built-in thermal shutdown circuit
Package Dimensions
unit: mm
3222-HSOP28
[LB1955]
Ambient temperature, Ta – °C
SANYO: HSOP28
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCCmax
IOUT
Pdmax
Topr
Tstg
Independent device
Conditions
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage
Hall input amplitude
VC input voltage
Symbol
VCC
Vhall
VC
At the input
Conditions
Ratings
14.5
1.0
0.60
–20 to +75
–55 to +150
Unit
V
A
W
°C
°C
Ratings
10.2 to 13.8
70 to 500
0 to 5
Unit
V
mVp-p
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73097HA (OT) No. 5452-1/7
1 page  
VG and LIM Pin Usage
Output
stage
LB1955
LIM pin: Open
VG – Rf: Shorted
Gm = 0.423/Rf (A/V)
(Closed loop control gain)
Ilim = (VREF × 27/200 – 0.2) × 4.23/3/Rf
(Current limit)
VG pin: Open
Gm = 1/Rf (A/V)
(Closed loop control gain)
Ilim = (VREF ×27/200 – 0.2) ×10/3/Rf
(Current limit)
LIM – VREF: Shorted
No current limit.
Note: This current limiting function is for protection against unusual and abnormal currents. If a current limit level below the rated current is set, this will,
inversely, result in heat generation within the IC.
When the LIM pin is open, VG is shorted to Rf, and Rf = 0.47 Ω, this will result in a current limit level of about 1.3 to 1.4 A. If this limit falls under the
rated value due to mode changes or changes in the value of the Rf resistor, set the current limit to an appropriate value by applying to the LIM pin a
voltage that is divided from the VREF to ground potential by resistors of a few kΩ. Alternatively, short the LIM pin to VREF to defeat the current limit
function.
PG and FG Pin Output Circuits
FG (FGR shorted to ground)
PG (FGR shorted to PG)
No. 5452-5/7
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LB1955.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LB1950 | Three-Phase Brushless Sensorless Motor Driver | Sanyo |
| LB1950V | Three-Phase Brushless Sensorless Motor Driver | Sanyo |
| LB1951 | 3-Phase Brushless Motor Driver for Portable VCR Capstan Use | Sanyo |
| LB1951V | 3-Phase Brushless Motor Driver for Portable VCR Capstan Use | 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 |