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TPS482H85-Q1 48V, 85mΩ Dual-Channel Smart High-Side Switch
SLVSHS0
March 2025
TPS482H85-Q1
ADVANCE INFORMATION
CONTENTS
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TPS482H85-Q1 48V, 85mΩ Dual-Channel Smart High-Side Switch
1
1
Features
2
Applications
3
Description
4
Device Comparison Table
5
Pin Configuration and Functions
5.1
Pinout
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
SNS Timing Characteristics
6.7
Switching Characteristics_24V
6.8
Switching Characteristics_48V
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Pin Current and Voltage Conventions
7.3.2
Accurate Current Sense
7.3.3
Adjustable Current Limit
7.3.4
Inductive-Load Switching-Off Clamp
7.3.5
Fault Detection and Reporting
7.3.5.1
Diagnostic Enable Function
7.3.5.2
Multiplexing of Current Sense
7.3.5.3
FAULT Reporting
7.3.5.4
Fault Table
7.3.6
Full Diagnostics
7.3.6.1
Short-to-GND and Overload Detection
7.3.6.2
Open-Load Detection
7.3.6.2.1
Channel On
7.3.6.2.2
Channel Off
7.3.6.3
Short-to-Battery Detection
7.3.6.4
Reverse-Polarity and Battery Protection
7.3.6.5
Thermal Fault Detection
7.3.6.5.1
Thermal Protection Behavior
7.3.7
Full Protections
7.3.7.1
UVLO Protection
7.3.7.2
Loss of GND Protection
7.3.7.3
Loss of Power Supply Protection
7.3.7.4
Loss of VDD
7.3.7.5
Reverse Current Protection
7.3.7.6
Protection for MCU I/Os
7.4
Device Functional Modes
7.4.1
Operatiional Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Examples
8.4.2.1
Without a GND Network
8.4.2.2
With a GND Network
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
CHU|12
Thermal pad, mechanical data (Package|Pins)
Orderable Information
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TPS482H85-Q1 48V, 85mΩ Dual-Channel Smart High-Side Switch