SDAA265
April 2026
TPS26750A
1
Abstract
Trademarks
1
Applicability to other TI USB-PD Controllers
1.1
USB-PD Sink Introduction
1.2
Autonegotiate Sink Purpose
1.3
Definitions
2
Fields Covered
3
Autonegotiate Sink Basics with Examples
3.1
Auto Neg RDO Priority (ANRDOPriority)
3.2
Auto Compute Sink Min Power and Auto Neg Sink Min Required Power
3.3
No Capability Mismatch and Auto Disable Sink Upon Capability Mismatch
3.4
Auto Compute Sink Min Voltage and Auto Neg Min Voltage
3.5
Auto Compute Sink Max Voltage & Auto Neg Max Voltage
4
Autonegotiate Sink Basics with EPR Examples
4.1
Systems Requiring ≥140W
4.2
Sink Path SPR to EPR Transitions
5
Common Mistakes or Unique System Constraints
5.1
System Needs More Power but PD Selects Lower Power PDOs
5.2
System Supports EPR Power but PD Keeps Selecting 20V PDOs
5.3
Setting the Min Voltage and Max Voltage to the Same Values
6
Advanced Autonegotiate Sink Examples
6.1
Downgrading to 5V Fixed PDO
6.2
Autonegotiate Sink With Interrupt Driven EC
6.3
ANeg: Auto Negotiate Sink Update
6.4
AUTO_NEGOTIATE_SINK Register
6.4.1
AUTO_NEGOTIATE_SINK Usage Example 1
6.4.2
AUTO_NEGOTIATE_SINK Usage Example 2
6.4.3
AUTO_NEGOTIATE_SINK Usage Example 3
6.4.4
AUTO_NEGOTIATE_SINK Usage Example 4
7
References
Application Note
TPS257xx/TPS267xx Autonegotiate Sink Configuration