|
|
PDF SC4201 Data sheet ( Hoja de datos )
| Número de pieza | SC4201 | |
| Descripción | Multi Phase Link Controller | |
| Fabricantes | Semtech | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SC4201 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
|
No Preview Available !
SC4201
Multi-Phase Link Controller
POWER MANAGEMENT
Description
The SC4201 is a multi-phase link controller, ideal for iso-
lated and non-isolated applications. Its frequency of op-
eration can be programmed in excess of 1.5MHz and
can be easily synchronized to an external faster frequency.
The SC4201 output frequencies can be set to 2/4 or 3
phase operation. A single pin can either set a 4 phase
operation (each phase is 90 degrees apart) or 3 phase
operation (120 degrees apart).
Multi-phase operation of multiple primary or secondary
controllers reduces input/output ripple, the number of
components required for filtering, and noise due to fre-
quency beating generated by multiple free running oscil-
lators.
Features
Low cost/small size
Programmable frequency up to 2MHz, each phase
Synchronized to faster frequency
Programmable 2/4 or 3 phase operation
Applications
Telecom distributed power architectures
Multi-phase operation of power supplies
Multi-phase operation of switching regulators
The SC4201 is available in the MSOP-8 surface mount
package.
Typical Application Circuit
+3 to 6V
C1
0.1
Sync
R1
5K
U1
SC4201
VDD for 3 Phase
1 RT
GND 8
2 VDD
D7
Ph D
3 SYNC
C6
Ph C
4A
B5
Ph B
Ph A
Revision 3, November 2002
1
www.semtech.com
1 page  
SC4201
POWER MANAGEMENT
Application Information (Cont.)
Diagram in Figure 2 demonstrates a multi-phase operation of a single power supply with current sharing
through the individual phases and with fixed switching frequency FSW.
VDD
+3 to 6V
Ph A
PWM
sync
= Fsw
L
SYNC
Ph B
PWM
sync
= Fsw
L
RT
Ph C
PWM
L
sync
= Fsw
Vout
C
GND
Ph D
sync
PWM
= Fsw
L
SC4201
optional 3 or 2/4 Phases
Figure 2
2002 Semtech Corp.
5
www.semtech.com
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SC4201.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SC420 | Synchronous Power MOSFET Driver |  Semtech Corporation |
| SC4201 | Multi Phase Link Controller | Semtech |
| SC4205 | Very Low Dropout 1 Amp Regulator | Semtech Corporation |
| SC420A | Synchronous Power MOSFET Driver | Semtech Corporation |
| 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 |