SNVSCK4B
April 2024 – October 2025
TPS3842-Q1
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Device Comparison
5
Pin Configuration and Functions
6
Specification
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Timing Requirements
6.7
Switching Characteristics
6.8
Timing Diagram
6.9
Typical Characteristics
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
SENSE Input
7.3.1.1
SENSE Hysteresis
7.3.2
Selecting the SENSE Delay Time
7.3.3
Selecting the RESET Delay Time
7.3.4
RESET Output
7.4
Device Functional Modes
7.4.1
Normal Operation (VDD > VDD(min))
7.4.2
Above Power-On Reset but Less Than VDD(min) (VPOR < VDD < VDD(min))
7.4.3
Below Power-On Reset (VDD < VPOR)
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Meeting the Sense and Reset Delay
8.2.3
Application Curve
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 Support
9.2
Documentation Support
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
1
Features
AEC-Q100 qualified with the following results:
Device temperature grade 1: –40°C to +125°C ambient operating temperature T
A
Device HBM ESD classification level 2
Device CDM ESD classification level C7B
Wide supply voltage range: 1.9V to 42V
VDD, SENSE, and
RESET
are rated to 42V
Very low quiescent current: 850nA (typical)
High threshold accuracy: 0.5% (typical)
Fixed internal threshold voltages: 2.7V to 9.5V
Adjustable voltage variant: 0.7V
Capacitor adjustable delay time with CTR pin
Capacitor adjustable de-glitch time with CTS pin
Undervoltage open-drain, active-low output
Overvoltage open-drain, active-low and active-high output
Temperature range: –40°C to 125°C
Small size: SOT5X3 (DRL)