SLVSGE9A
november 2022 – april 2023
TPS36-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Device Comparison
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Timing Requirements
7.7
Switching Characteristics
7.8
Timing Diagrams
7.9
Typical Characteristics
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagrams
8.3
Feature Description
8.3.1
Voltage Supervisor
8.3.2
Window Watchdog Timer
8.3.2.1
tWC (Close Window) Timer
8.3.2.2
tWO (Open Window) Timer
8.3.2.3
Watchdog Enable Disable Operation
8.3.2.4
tSD Watchdog Start Up Delay
8.3.2.5
SET Pin Behavior
8.3.3
Manual RESET
8.3.4
RESET and WDO Output
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.1.1
CRST Delay
9.1.1.1
Factory-Programmed Reset Delay Timing
9.1.1.2
Adjustable Capacitor Timing
9.1.2
Watchdog Window Functionality
9.1.2.1
Factory-Programmed watchdog Timing
9.1.2.2
Adjustable Capacitor Timing
9.2
Typical Applications
9.2.1
Design 1: Monitoring Microcontroller Supply and Watchdog During Operational and Sleep Modes
9.2.1.1
Design Requirements
9.2.1.2
Detailed Design Procedure
9.2.1.2.1
Setting Voltage Threshold
9.2.1.2.2
Determining Window Timings During Operation and Sleep Modes
9.2.1.2.3
Meeting the Minimum Reset Delay
9.2.1.2.4
Setting the Watchdog Window
9.2.1.2.5
Calculating the RESET Pullup Resistor
9.3
Power Supply Recommendations
9.4
Layout
9.4.1
Layout Guidelines
9.4.2
Layout Example
10
Device and Documentation Support
10.1
Receiving Notification of Documentation Updates
10.2
Support Resources
10.3
Trademarks
10.4
Electrostatic Discharge Caution
10.5
Glossary
11
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
DDF|8
MPDS569D
Thermal pad, mechanical data (Package|Pins)
Orderable Information
slvsge9a_oa
slvsge9a_pm
1
Features
AEC-Q100 qualified with the following results:
Device temperature grade 1: –40°C to 125°C ambient operating temperature range
Factory programmed or user-programmable watchdog timeout
±10% Accurate timer (maximum)
Factory programmed close window: 1msec to 100 sec
Factory programmed or user-programmable reset delay
±10% Accurate timer (maximum)
Factory programmed option: 2 msec to 10 sec
Input voltage range: V
DD
= 1.04 V to 6.0 V
Fixed threshold voltage (V
IT-
): 1.05 V to 5.4 V
Threshold voltage available in 50 mV steps
1.2% Voltage threshold accuracy (maximum)
Built-in hysteresis (V
HYS
): 5% (typical)
Ultra low supply current: I
DD
= 250 nA (typical)
Open-drain, push-pull; active-low outputs
Various programmability options:
Watchdog enable-disable
Watchdog startup delay: no delay to 10 sec
Open window to close window ratio option: 1X to 511X
Latched output option
MR
functionality support