ADP3630ARMZ-R7 Analog Devices

High Speed, Dual, 2 A MOSFET Driver ADP3629/ADP3630/ADP3631 FEATURES GENERAL DESCRIPTION Industry-standard-compatible pinout The ADP3629/ADP3630/ADP3631 are dual, high current, high High current drive capability speed drivers, capable of driving two independent N-channel Precise threshold shutdown comparator power MOSFETs. The ADP3629/ADP3630/ADP3631 use the UVLO with hysteresis industry-standard footprint but add high speed switching per- Overtemperature warning signal formance and improved system reliability. Overtemperature shutdown The ADP3629/ADP3630/ADP3631 have an internal temperature 3.3 V-compatible inputs sensor and provide two levels of overtemperature protection: an Rise time and fall time: 10 ns typical at 2.2 nF load overtemperature warning and an overtemperature shutdown at Fast propagation delay extreme junction temperatures. Matched propagation delays between channels The SD function, generated from a precise internal comparator, Supply voltage: 9.5 V to 18 V provides fast system enable or shutdown. This feature allows Dual outputs can be operated in parallel redundant overvoltage protection, complementing the protec- (ADP3629/ADP3630) tion inside the main controller device, or provides safe system Rated from 40C to +85C ambient temperature shutdown in the event of an overtemperature warning. 8-lead SOIC N and 8-lead MSOP The wide input voltage range allows the driver to be compatible APPLICATIONS with both analog and digital PWM controllers. AC-to-DC switch mode power supplies Digital power controllers are supplied from a low voltage supply, DC-to-DC power supplies and the driver is supplied from a higher voltage supply. The Synchronous rectification ADP3629/ADP3630/ADP3631 add UVLO and hysteresis func- Motor drives tions, allowing safe startup and shutdown of the higher voltage supply when used with low voltage digital controllers. FUNCTIONAL BLOCK DIAGRAM V DD ADP3629/ADP3630/ADP3631 8 OTW 1 SD OVERTEMPERATURE PROTECTION V V DD EN NONINVERTING 2 INA, 7 OUTA INA INVERTING 3 PGND 6 UVLO VDD NONINVERTING 4 INB, 5 OUTB INB INVERTING Figure 1. Rev. 0 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 www.analog.com license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Fax: 781.461.3113 2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. 08401-101ADP3629/ADP3630/ADP3631 TABLE OF CONTENTS Features .............................................................................................. 1 Test Circuit ...................................................................................... 10 Applications ....................................................................................... 1 Theory of Operation ...................................................................... 11 General Description ......................................................................... 1 Input Drive Requirements (INA, INA, INB, INB, and SD) .. 11 Functional Block Diagram .............................................................. 1 Low-Side Drivers (OUTA, OUTB) .......................................... 11 Revision History ............................................................................... 2 Shutdown (SD) Function .......................................................... 11 Specif icat ions ..................................................................................... 3 Overtemperature Protections ................................................... 12 Timing Diagrams .......................................................................... 4 Supply Capacitor Selection ....................................................... 12 Absolute Maximum Ratings ............................................................ 6 PCB Layout Considerations ...................................................... 12 Thermal Resistance ...................................................................... 6 Parallel Operation ...................................................................... 12 ESD Caution .................................................................................. 6 Thermal Considerations ............................................................ 13 Pin Configurations and Function Descriptions ........................... 7 Outline Dimensions ....................................................................... 14 Typical Performance Characteristics ............................................. 8 Ordering Guide .......................................................................... 14 REVISION HISTORY 9/09Revision 0: Initial Version Rev. 0 Page 2 of 16