SIP41101 Vishay Siliconix, SIP41101 Datasheet

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SIP41101

Manufacturer Part Number
SIP41101
Description
Half-Bridge N-Channel MOSFET Driver With Break-Before-Make
Manufacturer
Vishay Siliconix
Datasheet
DESCRIPTION
The SiP41101 is a high speed half-bridge driver, with
make-before-break, for use in high frequency, high current
multiphase dc-to-dc power supplies for supply voltages as
high as 30 V. It is designed to operate at frequencies up to
1 MHz. The high-side driver is bootstrapped to allow driving an
n-channel high-side MOSFET. The bootstrap diode is internal.
The output drivers provide currents up to 4 A, allowing use of
low r
The SiP41101 comes with internal break-before-make
circuitry to prevent shoot-through current in the external
Document Number: 72377
S-31578—Rev. A, 11-Aug-03
FEATURES
D 5-V Gate Drive
D Undervoltage Lockout
D Sub 1-W Gate Drivers
D Internal Bootstrap Diode
D Drive MOSFETs In 4.5- to 30-V Systems
D Switching Frequency: 250 kHz to 1 MHz
D Synchronous Enable/Disable Option
TYPICAL APPLICATION DIAGRAM
+5 to 30 V
Half-Bridge N-Channel MOSFET Driver With Break-Before-Make
DS(on)
GND
+5 V
power MOSFETs.
Controller
IN
SYNC_EN
SD
New Product
SiP41101
V
GND
DD
APPLICATIONS
D Multi-Phase DC/DC
D High Current Synchronous Buck Converters
D High Frequency Synchronous Buck Converters
D Asynchronous-to-Synchronous Adaptations
D Mobile Computer DC/DC Converters
D Desktop Computer DC/DC Converters
MOSFETs. The SD control pin is provided to enable the
drivers. A Synchronous Enable control pin is provided to
disable the
maximize efficiency under low output current conditions.
The SiP41101 is available in a 16-pin TSSOP package for
operation over the industrial temperature range of -40 to 85_C.
BOOT
OUT
OUT
S
S
H
H
L
L
the low-side or synchronous MOSFET to
Vishay Siliconix
SiP41101
www.vishay.com
V
GND
OUT
1

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SIP41101 Summary of contents

Page 1

... MOSFETs. The SD control pin is provided to enable the drivers. A Synchronous Enable control pin is provided to disable the the low-side or synchronous MOSFET to maximize efficiency under low output current conditions. The SiP41101 is available in a 16-pin TSSOP package for operation over the industrial temperature range of -40 to 85_C BOOT ...

Page 2

... SiP41101 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS (ALL VOLTAGES REFERENCED TO GND = ...

Page 3

... DD BOOT BOOT 10% - 90% 90% - 10% 50% 50% 50% - 50% 10% - 90% 90% - 10% 50% - 50% 50% 50 d(off)H H-L d(off BOOT OUT IN SYNC_EN SD OUT GND Figure 1. SiP41101 Vishay Siliconix Limits a b Min Typ Max = -40 to 85_C = -40 to 85_C L 1.5 W ...

Page 4

... SiP41101 Vishay Siliconix PIN CONFIGURATION, ORDERING INFORMATION, AND TRUTH TABLE SiP41101 (TSSOP-16 GND 2 SYNC_EN OUT Top View TRUTH TABLE PIN DESCRIPTION Pin 11, 13 14, 16 www.vishay.com ...

Page 5

... Frequency (kHz) Document Number: 72377 S-31578—Rev. A, 11-Aug-03 New Product Levelshift Figure 2. Under Voltage Lockout Function The SiP41101 has an internal under-voltage lockout feature to prevent driving the MOSFET gates when the supply voltage (at ) will not less than the under-voltage lockout specification ...

Page 6

... SiP41101 Vishay Siliconix TYPICAL WAVEFORMS V Rising vs ns/div V Rising vs. OUT IN 25 ns/div SD vs. OUT 400 ns/div www.vishay.com 6 New Product 2V/div 5V/div H and OUT 2V/div IN OUT , H 10V/div OUT , L 5V/div L SD, 2V/div OUT , 5V/div L V Falling vs 2V/div ...

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