ADM8693ARN Analog Devices Inc, ADM8693ARN Datasheet - Page 2

• Manufacturer Part Number: ADM8693ARN
• Description: IMPROVED ADM693 I.C.
• Manufacturer: Analog Devices Inc
• Type: Battery Backup Circuitr

Specifications of ADM8693ARN

• Rohs Compliant: NO
• Rohs Status: RoHS non-compliant
• Number Of Voltages Monitored: 1
• Output: Push-Pull, Push-Pull
• Reset: Active High/Active Low
• Reset Timeout: 35 ms Minimum
• Voltage - Threshold: 4.4V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)

ADM8690/ADM8691/ADM8692/ADM8693/ADM8694/ADM8695
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Product Highlights ........................................................................... 1
Functional Block Diagrams............................................................. 1
Revision History ............................................................................... 2
General Description ......................................................................... 3
Specifications..................................................................................... 4
Absolute Maximum Ratings............................................................ 6
Pin Configurations and Function Descriptions ........................... 7
Typical Performance Characteristics ............................................. 8
Circuit Information ........................................................................ 10
REVISION HISTORY
9/06—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Changes to Absolute Maximum Ratings ....................................... 6
Updated Ordering Guide............................................................... 20
2/97—Revision 0: Initial Version
ESD Caution.................................................................................. 6
Battery Switchover Section........................................................ 10
Power-Fail RESET Output......................................................... 10
Watchdog Timer RESET ............................................................ 11
Watchdog Output ( WDO ) ........................................................ 12
CE Gating and RAM Write Protection
(ADM8691/ADM8693/ADM8695) ......................................... 12
Rev. A | Page 2 of 20
Application Information................................................................ 14
Typical Applications....................................................................... 16
Outline Dimensions ....................................................................... 18
Power-Fail Warning Comparator............................................. 13
Increasing the Drive Current.................................................... 14
Using a Rechargeable Battery for Backup ............................... 14
Adding Hysteresis to the Power-Fail Comparator ................. 14
Monitoring the Status of the Battery ....................................... 14
Alternate Watchdog Input Drive Circuits............................... 15
ADM8690, ADM8692, and ADM8694 ................................... 16
ADM8691, ADM8693, and ADM8695 ................................... 16
RESET Output ............................................................................ 16
Power-Fail Detector ................................................................... 17
RAM Write Protection............................................................... 17
Watchdog Timer......................................................................... 17
Ordering Guide .......................................................................... 19