SLVUC18 November   2020 TPS25865-Q1

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Features
    2. 1.2 Applications
  3. 2Schematic
  4. 3General Configuration and Description
    1. 3.1 Physical Access
    2. 3.2 Adjusting the Switching Frequency
    3. 3.3 Current Limit Value
    4. 3.4 Cable Compensation Value
    5. 3.5 Thermal Management
    6. 3.6 Test Setup
  5. 4Board Layout
  6. 5Bill of Materials

3.1 Physical Access

Table 3-1 lists the TPS25865Q1EVM-141 connector functionality, Table 3-2 describes the jumper configuration, and Table 3-3 describes the test point availability.

Table 3-1 Connectors
Connector Component Type Description
J1, J3 USB Type-A connector, receptacle Downstream facing USB Type-A connector. USB output power is provided to the slave from the buck converter of the TPS25865-Q1 device.
VIN+, PGND Terminal block Power input connector for TPS25865-Q1. Connect to a 5.5-V to 26-V power supply.
Table 3-2 Jumper
Jumper Label Description
J10 Buck output voltage selection 3 × 2 header. Install shunt to pin 1 and pin 3 for 5.1 V, to pin 3 and pin 5 for 5.17 V, to pin 2 and pin 4 for 5.4 V, to pin 4 and pin 6 for 5.3 V.
Table 3-3 Test Points
Test Point Label Description
VIN VIN VIN pin test point
EN EN EN pin test point
OUT OUT OUT pin test point
SENSE SENSE SENSE pin test point
PA_BUS PA_BUS BUS pin of Port A test point
PB_BUS PB_BUS BUS pin of Port B test point
PGND PGND Power ground pin test point