SLVSIF4
September 2026
TPS481HS04-Q1
ADVANCE INFORMATION
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
SPI Timing Requirements
5.7
Switching Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Driving Capacitive, Resistive and Inductive Loads
7.3.2
Protection Mechanisms
7.3.2.1
Overcurrent Protection
7.3.2.1.1
Inrush Period - Overcurrent Protection
7.3.2.1.2
Overcurrent Protection - Steady State Operation
7.3.2.1.3
Programmable Fuse Protection
7.3.2.1.4
Immediate Shutdown Overcurrent Protection (IOCP)
7.3.2.2
Output Disable Function (OUT_DIS)
7.3.2.3
Thermal Shutdown
7.3.2.4
Reverse Battery
7.3.3
Diagnostic Mechanisms
7.3.3.1
Integrated ADC
7.3.3.2
Analog and Digital Current Sense Output
7.3.3.3
Output Voltage Measurement
7.3.3.4
MOSFET Temperature Measurement
7.3.3.5
VBB Voltage Measurement
7.3.3.6
VOUT Short-to-Battery and Open-Load
7.3.3.6.1
Measurement With Channel Output (FET) Enabled
7.3.3.6.2
Detection With Channel Output Disabled
7.3.3.7
VOUT Short-to-Battery or FET Short Detection For Power at All Times (PAAT) Loads
7.3.4
Fault Indication (FLT / WAKE)
7.3.5
SPI Mode Operation
7.4
Device Functional Modes
7.4.1
State Diagram
7.4.2
Power Down
7.4.3
SLEEP
7.4.4
Low Power Mode (LPM)
7.4.5
CONFIG or ACTIVE Mode
7.4.6
LIMPHOME Mode
7.5
TPS481HS04-Q1 Pre-production Silicon Limitations
7.5.1
SDO Pin Tristate Discrete Workaround (Only for parallel SPI configuration not for daisy chain)
8
Register Maps
8.1
TPS481HS04-Q1 Registers
8.2
EEPROM (NVM) Overview
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
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
Documentation Support
10.2
Receiving Notification of Documentation Updates
10.3
Support Resources
10.4
Trademarks
10.5
Electrostatic Discharge Caution
10.6
Glossary
11
Revision History
12
Mechanical, Packaging, and Orderable Information
12.1
Tape and Reel Information
12.2
Mechanical Data
Package Options
Mechanical Data (Package|Pins)
RBL|21
Thermal pad, mechanical data (Package|Pins)
Data Sheet
TPS481HS04-Q1
4mΩ
, Automotive
Single-Channel
, SPI Controlled High-Side Switch with Integrated I
2
t Wire Protection and Low Power Mode