SIP41104 Datasheet, PDF (1/8 Pages) Vishay Siliconix – Half-Bridge N-Channel MOSFET Driver for DC/DC Conversion

SiP41104
Vishay Siliconix
Half-Bridge N-Channel MOSFET Driver for DC/DC Conversion
DESCRIPTION
The SiP41104 is a high-speed half-bridge MOSFET driver
for use in high frequency, high current, multiphase dc-to-dc
synchronous rectifier buck power supplies. It is designed to
operate at switching frequencies up to 1 MHz. The high-side
driver is bootstrapped to allow driving N-channel MOSFETs.
The SiP41104 comes with adaptive shoot-through protection
to prevent simultaneous conduction of the external
MOSFETs.
The SiP41104 is available in both standard and lead (Pb)-
free 8 pin SOIC packages and is specified to operate over
the industrial temperature range of - 40 °C to 85 °C.
FUNCTIONAL BLOCK DIAGRAM
FEATURES
• 5 V gate drive
• Undervoltage lockout
• Internal bootstrap diode
• PWM pin tristate enable feature
• Switching frequency up to 1 MHz
• Drive MOSFETs in 4.5 V to 50 V systems
• Compliant to RoHS directive 2002/95/EC
APPLICATIONS
• Multi-phase DC/DC conversion
• High current synchronous buck converters
• High frequency synchronous buck converters
• Asynchronous-to-synchronous adaptations
• Mobile computer DC/DC converters
• Desktop computer DC/DC converters
+ 5 to 50 V
+5V
V_DD
BOOT
Controller
OUT_H
SiP41104
LX
PWM
V_OUT
OUT_L
GND
GND
GND
*Pb containing terminations are not RoHS compliant, exemptions may apply.
Document Number: 72706
S09-1454-Rev. E, 03-Aug-09
www.vishay.com
1