Dual, Bootstrapped, 12 V MOSFET Driver with Output Disable Data Sheet ADP3650 FEATURES GENERAL DESCRIPTION All-in-one synchronous buck driver The ADP3650 is a dual, high voltage MOSFET driver optimized Bootstrapped high-side drive for driving two N-channel MOSFETs, the two switches in a One PWM signal generates both drives nonisolated synchronous buck power converter. Each driver is Anti-crossconduction protection circuitry capable of driving a 3000 pF load with a 45 ns propagation delay OD for disabling the driver outputs and a 25 ns transition time. One of the drivers can be boot- strapped and is designed to handle the high voltage slew rate APPLICATIONS associated with floating high-side gate drivers. The ADP3650 includes overlapping drive protection to prevent shoot-through Telecom and datacom networking current in the external MOSFETs. Industrial and medical systems Point of load conversion: memory, DSP, FPGA, ASIC The pin shuts off both the high-side and the low-side OD MOSFETs to prevent rapid output capacitor discharge during system shutdown. The ADP3650 is specified over the temperature range of 40C to +85C and is available in 8-lead SOIC N and 8-lead LFCSP packages. FUNCTIONAL BLOCK DIAGRAM 12V D1 VCC 4 BST ADP3650 1 C BST2 LATCH C BST1 2 R1 R IN DRVH G R2 Q 8 Q1 S DELAY R BST TO INDUCTOR SW 7 CMP VCC 6 CMP DRVL 1V CONTROL 5 Q2 LOGIC PGND DELAY 6 OD 3 Figure 1. Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20082017 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 07826-001ADP3650 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Low-Side Driver ............................................................................9 Applications ....................................................................................... 1 High-Side Driver ...........................................................................9 General Description ......................................................................... 1 Overlap Protection Circuit ...........................................................9 Functional Block Diagram .............................................................. 1 Applications Information .............................................................. 10 Revision History ............................................................................... 2 Supply Capacitor Selection ....................................................... 10 Specifications ..................................................................................... 3 Bootstrap Circuit ........................................................................ 10 Timing Characteristics ................................................................ 4 MOSFET Selection ..................................................................... 10 Absolute Maximum Ratings ............................................................ 5 High-Side (Control) MOSFETs ................................................ 10 Thermal Resistance ...................................................................... 5 Low-Side (Synchronous) MOSFETs ........................................ 11 ESD Caution .................................................................................. 5 PCB Layout Considerations ...................................................... 11 Pin Configurations and Function Descriptions ........................... 6 Outline Dimensions ....................................................................... 12 Typical Performance Characteristics ............................................. 7 Ordering Guide .......................................................................... 12 Theory of Operation ........................................................................ 9 REVISION HISTORY 9/2017Rev. A to Rev. B Changed CP-8-2 to CP-8-13 ........................................ Throughout Updated Outline Dimensions ....................................................... 12 Changes to Ordering Guide .......................................................... 12 7/2010Rev. 0 to Rev. A Changes to General Description Section ...................................... 1 Changes to Table 1 ............................................................................ 3 Changes to Operating Ambient Temperature Range Parameter, Table 2 ................................................................................................ 5 Changes to Figure 8 and Figure 9 ................................................... 7 Changes to Ordering Guide .......................................................... 12 10/2008Revision 0: Initial Version Rev. B Page 2 of 12