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FEATURES www.datasheet4u.com All-In-One Synchronous Buck Driver Bootstrapped High Side Drive One PWM Signal Generates ...
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FEATURES www.datasheet4u.com All-In-One Synchronous Buck Driver Bootstrapped High Side Drive One PWM Signal Generates Both Drives Anticross-Conduction Protection Circuitry APPLICATIONS Multiphase Desktop CPU Supplies Single-Supply Synchronous Buck Converters Standard-to-Synchronous Converter Adaptations
IN VCC
Dual Bootstrapped
MOSFET Driver ADP3417
FUNCTIONAL BLOCK DIAGRAM
BST
DRVH OVERLAP PROTECTION CIRCUIT
SW
DRVL
ADP3417
PGND
GENERAL DESCRIPTION
12V VCC D1 BST
The ADP3417 is a dual
MOSFET driver optimized for driving two N-channel
MOSFETs which are the two switches in a nonisolated synchronous buck power converter. Each of the drivers is capable of driving a 3000 pF load with a 20 ns propagation delay and a 30 ns transition time. One of the drivers can be bootstrapped and is designed to handle the high
voltage slew rate associated with “floating” high side gate drivers. The ADP3417 includes overlapping drive protection (ODP) to prevent shoot-through current in the external
MOSFETs. The ADP3417 is specified over the commercial temperature range of 0°C to 70°C and is available in an 8-lead SOIC package.
ADP3417
CBST DRVH
IN
Q1
SW
DELAY
TO INDUCTOR 1V
DRVL
Q2
PGND 1V
Figure 1. General Application Circuit
REV. A
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