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參數(shù)資料
| 型號： | SC420A |
| 廠商： | Semtech Corporation |
| 英文描述： | High Speed, Combi-SenseTM, Synchronous Power MOSFET Driver for Mobile Applications |
| 中文描述： | 高速，雜木SenseTM，同步功率MOSFET驅(qū)動器為移動應用 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 733K |
| 代理商： | SC420A |
MOSFETs in Step-down Switching regulators. 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 GND in the main and synchro-
nous MOSFETs.
1
United States Patent No. 6,441,597
www.semtech.com
SC420A
High Speed, Combi-Sense
TM
, Synchronous
Power MOSFET Driver for Mobile Applications
POWER MANAGEMENT
Description
Features
Applications
Revision: April 1, 2004
The SC420A is a cost effective Dual MOSFET Driver, in-
corporating Semtech’s patented Combi-Sense
TM
technol-
ogy, designed for switching High and Low side Power
High current drive capability allows fast switching, thus
reducing switching losses at high frequencies without
causing thermal stress on the driver.
The high voltage CMOS process allows operation up to
27 Volts, making the SC420A suitable for adaptor pow-
ered applications. Under-voltage-lockout and over-tem-
perature shutdown features are included for proper and
safe operation. The SC420A is offered in a space saving
MLP-12 package.
u
High efficiency
u
Shutdown mode for increased power saving
u
Fast rise and fall times (10ns typical with 3000pF
load)
u
5V gate drive
u
Ultra-low (<30ns) propagation delay (BG going low)
u
Adaptive and programmable non-overlapping gate
drives provide shoot-through protection
u
Floating top drive switches up to 27V
u
High frequency operation allows use of small
inductors and low cost ceramic capacitors
u
Under-voltage lockout
u
Low quiescent current
u
MLP packaging provides superior thermal perfor-
mance in a small footprint
u
High efficiency portable and notebook computers
u
Battery powered applications
Conceptual Application Circuit
Figure 1
VOUT
GND
PWM
FB
VIN
CDELAY
EN
CO
VIN2
VIN
BST
TG
DRN
BG
VPN
EN
VIN2
CDELAY
RVPN
CVPN
CBST
CL
M1
M2
L1
SC420A
D1
VIN
CS- CS+
Combi-Sense
TM
Controller IC
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PDF描述 |
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| SC420IMLTR | High Speed, Combi-SenseTM, Synchronous Power MOSFET Driver for Mobile Applications |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC420AIMLTRT | 制造商:Semtech Corporation 功能描述: |
| SC420-DF | 制造商:Schneider Electric 功能描述:APC SMART-UPS SC 420VA 120V - Bulk |
| SC420I | 制造商:American Power Conversion Corp (APC by Schneider Electric) 功能描述:APC SMART-UPS SC 420VA 230V 制造商:Schneider Electric 功能描述:APC SMART-UPS SC 420VA 230V - Bulk |
| SC420IMLTR | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:High Speed, Combi-SenseTM, Synchronous Power MOSFET Driver for Mobile Applications |
| SC420IMLTRT | 制造商:Semtech Corporation 功能描述: |
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