SNVSCF8A
June 2023 – October 2026
TPS3436
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison
5
Pin Configuration and Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Thermal Information
6.6
Electrical Characteristics
6.7
Timing Requirements
6.8
Switching Characteristics
6.9
Timing Diagrams
6.10
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagrams
7.3
Feature Description
7.3.1
Window Watchdog Timer
7.3.1.1
tWC (Close Window) Timer
7.3.1.2
tWO (Open Window) Timer
7.3.1.3
Watchdog Enable Disable Operation
7.3.1.4
tSD Watchdog Start Up Delay
7.3.1.5
SET Pin Behavior
7.3.2
Manual RESET
7.3.3
WDO Output
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.1.1
Output Assert Delay
8.1.1.1
Factory-Programmed Output Assert Delay Timing
8.1.1.2
Adjustable Capacitor Timing
8.1.2
Watchdog Window Functionality
8.1.2.1
Factory-Programmed Timing Options
8.1.2.2
Adjustable Capacitor Timing
8.2
Typical Applications
8.2.1
Design 1: Monitoring a Microcontroller Watchdog During Operational and Sleep Modes
8.2.1.1
Design Requirements
8.2.1.2
Detailed Design Procedure
8.2.1.2.1
Determining Window Timings During Operation and Sleep Modes
8.2.1.2.2
Meeting the Output Assert Delay
8.2.1.2.3
Setting the Watchdog Window
8.2.1.2.4
Calculating the WDO Pullup Resistor
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Device Nomenclature
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDF|8
MPDS569D
Thermal pad, mechanical data (Package|Pins)
Orderable Information
snvscf8a_oa
snvscf8a_pm
Data Sheet
TPS3436
Nano IQ Precision
Window
Watchdog Timer