DataSheet.es    


PDF SC1214 Data sheet ( Hoja de datos )

Número de pieza SC1214
Descripción High Speed - Combi-Sense Two-Phase - Synchronous MOSFET Driver
Fabricantes Semtech 
Logotipo Semtech Logotipo



Hay una vista previa y un enlace de descarga de SC1214 (archivo pdf) en la parte inferior de esta página.


Total 8 Páginas

No Preview Available ! SC1214 Hoja de datos, Descripción, Manual

POWER MANAGEMENT
SC1214
High Speed, Combi-SenseTM
Two-Phase, SynchronouwswwM.DaOtaSShFeEet4TU.Dcormiver
Description
Features
The SC1214 is a high speed, Combi-SenseTM, two-phase
driver designed to drive high-side and low-side MOSFETs
in two synchronous Buck converters. The driver com-
bined with Combi-Sense PWM controllers, such as
Semtech SC2643VX or SC2643, provides a cost effec-
tive two-phase voltage regulator for advanced micro-
processors
The Combi-SenseTM is a technique to sense the inductor
current for peak current mode control of voltage regula-
tor without using sensing resistor. It provides the follow-
ing advantages:
- No costly precision sensing resistor
- Lossless current sensing
- High level noise free signal
- Fast response
- Suitable for wide range of duty cycle
The detailed explanation of the technique can be found
in the Applications Information section.
u High efficiency
u +12V gate drive voltage
u High peak drive current
u Adaptive non-overlapping gate drives provide
shoot-through protection
u Support Combi-SenseTM and VID-on-fly operations
u Fast rise and fall times (15ns typical with 3000pf
load)
u Ultra-low (<30ns) propagation delay (BG going low)
u Floating top gate drive
u Crowbar function for over voltage protection
u High frequency (to 1.5 MHz) operation allows use
of small inductors and low cost ceramic capacitors
u Under-voltage-lockout
u Low quiescent current
A 30ns max propagation delay from input transition to
the gate of the power FET’s guarantees operation at high
switching frequencies. Internal overlap protection circuit
prevents shoot-through from Vin to PGND in the main
and synchronous MOSFETs. The adaptive overlap pro-
tection circuit ensures the bottom FET does not turn on
until the top FET source has reached 1V, to prevent cross-
conduction.
Applications
u Intel Pentium® processor power supplies
u AMD AthlonTM and AMD-K8TM processor power
supplies
u High current low voltage DC-DC converters
High current drive capability allows fast switching, thus
reducing switching losses at high (up to 1.5MHz) frequen-
cies without causing thermal stress on the driver.
Under-voltage-lockout and over-temperature shutdown
features are included for proper and safe operation.
Timed latches and improved robustness are built into
the housekeeping functions such as the Under Voltage
Lockout and adaptive Shoot-through protection circuitry
to prevent false triggering and to assure safe operation.
The SC1214 is offered in a TSSOP-20 package.
May 9, 2005
1 www.semtech.com

1 page




SC1214 pdf
POWER MANAGEMENT
Timing Diagrams
CO
DRN
TG
tPDH_TG tR_TG
BG 1.4V
tPDL_BG tF_BG
Rising Edge Transition
SC1214
www.DataSheet4U.com
1.0V
tPDL_TG tF_TG
tPDH_BG tR_BG
Falling Edge Transition
2005 Semtech Corp.
5
www.semtech.com

5 Page










PáginasTotal 8 Páginas
PDF Descargar[ Datasheet SC1214.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
SC1210High Speed- 12V/ Synchronous Power MOSFET DriverSemtech
Semtech
SC1211Combi-SenseTM Synchronous MOSFET DriverSemtech Corporation
Semtech Corporation
SC1211VXHigh Speed - Combi-Sense - Synchronous MOSFET Driver for Mobile ApplicationsSemtech
Semtech
SC1214High Speed - Combi-Sense Two-Phase - Synchronous MOSFET DriverSemtech
Semtech

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
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,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar