Microprocessor Supervisory Circuit in 4-Lead SC70 Data Sheet ADM6384 FEATURES FUNCTIONAL BLOCK DIAGRAMS Precision power supply monitoring ADM6384 31 reset threshold options: 1.58 V to 5.0 V Four reset timeouts: 1 ms, 20 ms, 140 ms, and 1120 ms V CC RESET Manual reset input RESET GENERATOR V REF Reset output stage Push pull active low Guaranteed reset output valid to V = 1 V CC MR DEBOUNCE GND Power supply glitch immunity Specified over the 40C to +125C temperature range 4-lead SC70 package Figure 1. APPLICATIONS Microprocessor systems V V CC CC Computers ADM6384 MICROPROCESSOR Controllers MR RESET RESET Intelligent instruments 100k Portable equipment GND GND Figure 2 GENERAL DESCRIPTION The ADM6384 is a supervisory circuit that monitors power supply The device is available in a choice of 31 reset threshold options, voltage levels in microprocessor-based systems. A power-on reset from 1.58 V to 5.0 V. The minimum reset timeout periods are signal is generated when the supply voltage rises to a preset 1 ms, 20 ms, 140 ms, and 1120 ms. Not all device options are threshold level. The debounced manual reset input of the released for sale as standard models. See Ordering Guide for ADM6384 can be used to initiate a reset by means of an external details. push button or logic signal. The ADM6384 is available in a 4-lead SC70 package and typi- cally consumes only 7 A, making it suitable for use in low power, portable applications. Rev. E 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 20052018 Analog Devices, Inc. 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Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. 05305-001 05305-002ADM6384 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................7 Applications ....................................................................................... 1 Circuit Description............................................................................9 Functional Block Diagrams ............................................................. 1 Reset Output ..................................................................................9 General Description ......................................................................... 1 Manual Reset Input .......................................................................9 Revision History ............................................................................... 2 Applications Information .............................................................. 10 Specif icat ions ..................................................................................... 3 Negative Going V Transients ................................................. 10 CC Absolute Maximum Ratings ............................................................ 5 Ensuring Reset Valid to V = 0 V ........................................... 10 CC ESD Caution .................................................................................. 5 Outline Dimensions ....................................................................... 11 Pin Configuration and Function Descriptions ............................. 6 Ordering Guide .......................................................................... 11 REVISION HISTORY 4/2018Rev. D to Rev. E Changes to General Description Section ...................................... 1 Added Note 2, Table 1 Renumbered Sequentially ....................... 3 Changes to Ordering Guide .......................................................... 11 6/2016Rev. C to Rev. D Change to Table 3 ............................................................................. 6 Updated Outline Dimensions ....................................................... 11 4/2011Rev. B to Rev. C Updated Outline Dimensions ....................................................... 11 Changes to Ordering Guide .......................................................... 11 7/2008Rev. A to Rev. B Changes to Figure 5, Figure 8, and Figure 9.................................. 7 Changes to Figure 10 ........................................................................ 8 Changes to Figure 15 ...................................................................... 11 Changes to Ordering Guide .......................................................... 11 1/2007Rev. 0 to Rev. A Updated Format .................................................................. Universal Changes to Specifications Table ...................................................... 3 Updated Outline Dimensions ....................................................... 11 Changes to Ordering Guide .......................................................... 11 7/2005Revision 0: Initial Version Rev. E Page 2 of 12