SIP41103 Datasheet, PDF (1/8 Pages) Vishay Siliconix – Adaptive Shoot-Through Protection

SiP41103
Vishay Siliconix
Synchronous Rectification N-Channel MOSFET Driver
for DC/DC Conversion
DESCRIPTION
SiP41103 is a high-speed synchronous rectification
MOSFET driver with adaptive shoot-through protec-
tion for use in high frequency, high-current, mul-
tiphase DC-DC synchronous rectifier buck converter.
It is designed to operate at the switching frequencies
up to 1 MHz. The high-side driver is bootstrapped to
allow driving N-Channel MOSFET. Adaptive shoot-
through protection prevents simultaneous conduction
of external MOSFETs. Adding a capacitor to the delay
pin can further increase the high-side driver turn-on
delay by 1.2 ns/pF for further shoot-through protec-
tion.
The SiP41103 is available in both standard and lead
(Pb)-free 10-Pin MLP33 packages and is specified to
operate over the industrial temperature range of
- 40 °C to 85 °C.
FEATURES
• 5 V Gate Drive
• Undervoltage Lockout
• Internal Bootstrap Diode
• Adaptive Shoot-Through Protection
• Synchronous MOSFET Disable
• Adjustable Highside Propagation Delay
• Switching Frequency Up to 1 MHz
• Drive MOSFETs In 4.5 to 50 V Systems
Pb-free
Available
RoHS*
COMPLIANT
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
TYPICAL APPLICATION CIRCUIT
+ 5 to 50 V
+5V
1 µF
10 pF
Controller
VDD
DELAY
BOOT
OUTH
SiP41103
PWM
LX
ENSYNC
OUTL
0.1 µF
GND
GND
*Pb containing terminations are not RoHS compliant, exemptions may apply
Document Number: 72718
S-61692–Rev. E, 04-Sep-06
VOUT
GND
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