Test Setup
3
SLVUBL1A – November 2018 – Revised February 2019
Copyright © 2018–2019, Texas Instruments Incorporated
TPS25831-Q1 Evaluation Module
shows a typical test setup for charging the USB Type-C device. Connect J2 to the 13.5-V power
supply. Connect USB Type-C device to J7 connector. Shunts do not need to be installed on J4 or J5.
Figure 2. EVM Setup for Charging USB Type-C™ Device
2.1
Physical Access
lists the TPS25831Q1EVM-062 connector functionality,
describes the jumper
configuration,
shows LED labels and description, and
describes the test point availability.
Table 1. Connectors
Connector
Component Type
Description
J2
Terminal block
Power input connector for TPS25831-Q1. Connect to a 6-V to 36-V power supply.
J1
Terminal block
The regulated output voltage of the TPS25831-Q1 buck converter.
J3
USB Type-A connector, plug
Upstream facing USB 2.0 Type A connector. Connect to the USB 2.0 host for data
pass through to J7. The power pin of this connector is float.
J7
USB Type-C connector,
receptacle
Downstream facing USB Type-C connector. Connect to the USB Type-C slave for
data pass through from J3 and BC1.2 or USB Type-C identification. USB output
power is provided to the slave from the buck converter of the TPS25831-Q1
device.
Table 2. Jumpers
Jumper
Label
Description
J4
CC1
3 × 1 header. Install shunt to connect Ra or Rd on CC1. Remove shunt to float CC1.
J5
CC2
3 × 1 header. Install shunt to connect Ra or Rd on CC2. Remove shunt to float CC2.
J6
CTRL1
Install shunt to select CTRL1 as LOW. Remove shunt to select CTRL1 as HIGH.
CTRL2
Install shunt to select CTRL2 as LOW. Remove shunt to select CTRL2 as HIGH.
Table 3. LED
LED
Label
Description
D4
THERM_WARN
THERM_WARN signal LED. Turn on when thermal warning asserts.
D5
LD_DET
LD_DET signal LED. Turn on when LD_DET asserts.
D6
POL
POL signal LED. Turn on when POL asserts.
D7
FAULT
FAULT signal LED. Turn on when FAULT asserts.