Introduction
2
SLVUBL1A – November 2018 – Revised February 2019
Copyright © 2018–2019, Texas Instruments Incorporated
TPS25831-Q1 Evaluation Module
1
Introduction
The TPS25831Q1EVM-062 is an evaluation module (EVM) for TI's TPS25831-Q1 USB Type-C™ and
BC1.2 5-V, 3.5-A output, 36-V input synchronous buck with cable compensation. The EVM operates over
a range from 6 V to 36 V and provides USB Type-C connectors to evaluate BC1.2 and USB Type-C
charging and USB2.0 data communication functions. The value of cable compensation, current limit, and
switching frequency can be adjusted by resistors on the EVM.
1.1
Features
The following features are available on this EVM:
•
6-V to 36-V input range, 3.5-A continuous output current buck converter
•
Forced PWM operation with spread-spectrum dithering
•
Fully AEC-Q100 qualified
•
± 8% Current sense accuracy (IOUT > 1.5 A) for precision cable droop compensation
•
USB battery charging specification Rev. 1.2 and USB Type-C Rev. 1.3 compliant
•
CC1, CC2, D+ and D– Short-to-VBAT, and VBUS protection
•
User-programmable VBUS current limit and internal VCONN current limiting
•
External NTC component for thermal management
1.2
Applications
The EVM is used in the following applications:
•
Automotive: Infotainment, USB hubs, aftermarket USB chargers
2
Test Setup
shows a typical test setup for testing the TPS25831Q1EVM-062 buck converter. Connect J2 to
the 13.5-V power supply. Connect the load to the J1 connector. Install a shunt on J4 to apply Rd on CC1.
Figure 1. EVM Setup For Testing Buck Converter