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
封装选项
机械数据 (封装 | 引脚)
DDF|8
MPDS569D
散热焊盘机械数据 (封装 | 引脚)
订购信息
snvscf8a_oa
snvscf8a_pm
1
Features
Factory programmed or user-programmable watchdog timeout
±10% accurate timer (maximum)
Factory programmed close window: 1ms to 100s
Factory programmed or user-programmable reset delay
±10% Accurate timer (maximum)
Factory programmed option: 2ms to 10s
Input voltage range: V
DD
= 1.04V to 6.0V
Ultra low supply current: I
DD
= 250nA (typical)
Open-drain, push-pull; active-low outputs
Various programmability options:
Watchdog enable-disable
Watchdog startup delay: no delay to 10s
Open window to close window ratio option: 1X to 511X
Latched output option
MR
functionality support