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TPS3850G12DRCT Datasheet(PDF) 2 Page - Texas Instruments

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Part # TPS3850G12DRCT
Description  Precision Voltage Supervisor with Programmable Window Watchdog Timer
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

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TPS3850
SBVS301A – OCTOBER 2016 – REVISED NOVEMBER 2016
www.ti.com
Product Folder Links: TPS3850
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
Table of Contents
1
Features .................................................................. 1
2
Applications ........................................................... 1
3
Description ............................................................. 1
4
Revision History..................................................... 2
5
Pin Configuration and Functions ......................... 3
6
Specifications......................................................... 4
6.1
Absolute Maximum Ratings ...................................... 4
6.2
ESD Ratings.............................................................. 4
6.3
Recommended Operating Conditions ....................... 4
6.4
Thermal Information .................................................. 5
6.5
Electrical Characteristics........................................... 5
6.6
Timing Requirements ................................................ 6
6.7
Typical Characteristics ............................................ 10
7
Detailed Description ............................................ 13
7.1
Overview ................................................................. 13
7.2
Functional Block Diagram ....................................... 13
7.3
Feature Description................................................. 14
7.4
Device Functional Modes........................................ 20
8
Application and Implementation ........................ 21
8.1
Application Information............................................ 21
8.2
Typical Applications ................................................ 26
9
Power Supply Recommendations ...................... 32
10
Layout................................................................... 32
10.1
Layout Guidelines ................................................. 32
10.2
Layout Example .................................................... 32
11
Device and Documentation Support ................. 33
11.1
Device Support...................................................... 33
11.2
Documentation Support ........................................ 33
11.3
Receiving Notification of Documentation Updates 33
11.4
Community Resources.......................................... 33
11.5
Trademarks ........................................................... 33
11.6
Electrostatic Discharge Caution ............................ 34
11.7
Glossary ................................................................ 34
12
Mechanical, Packaging, and Orderable
Information ........................................................... 34
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (October 2016) to Revision A
Page
Changed units in ISENSE parameter and footnote 1 in Electrical Characteristics table .......................................................... 5
Added correct operation state to Figure 2 ............................................................................................................................. 8
Changed Figure 3 so the SET pins do not bring the watchdog into the disabled state before going to the 1:2 ratio............ 9
Changed Figure 11 so it no longer has VDD and VSENSE tied together .............................................................................. 11
Changed Figure 26 so it no longer goes through watchdog disabled .................................................................................. 17
Added correct operation state to Figure 27 ......................................................................................................................... 18
Changed RESET to WDO in description of WDO assertion in WDO Functionality section ................................................ 19


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