SLVUCX8A August   2024  – September 2024 TPS25762-Q1

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Connections
    2. 2.2 Setup
    3. 2.3 Header Information
    4. 2.4 Jumper Information
    5. 2.5 Push Buttons
  9. 3Software
    1. 3.1 Software Description
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Revision History

2.4 Jumper Information

J13 TVSP Jumper

This jumper selects the bootmode and I2C address for the TPS25762-Q1.

TPS25762DQ1EVM J13 TVSP Jumper Figure 2-4 J13 TVSP Jumper

See TPS25762-Q1 Automotive USB Type-C® Power Delivery Controller with Buck-Boost Regulator data sheet for more information.

J21 Power Supply Control

This jumper is used to disable or select power supplies for the board.

TPS25762DQ1EVM J21 Power Supply Control Figure 2-5 J21 Power Supply Control
Table 2-4 Power Supply Control
Pins Label Description
1-2 5V EN Enable buck regulator to generate VCC5V
3-4 5V-LDO Connect LDO_5V to VCC5V
5-6 3V3 1V1EN Enable the LDO to generate VCC3V3 and VCC1V1 for Hub and MCU

J10 I2C Connection Jumper

This jumper block expands the I2C1 connections of TPS25762-Q1 and can connect to GPIO expander, I2C temperature sensor and EEPROM. Since I2C bus can support multiple targets, TI recommends to connect all pins.

TPS25762DQ1EVM J10 I2C Connection Jumper Figure 2-6 J10 I2C Connection Jumper
Table 2-5 J10 I2C Connection Jumper
Pins Label Description
1-2 and 3-4 TCA640 GPIO Connect the I2C1 bus of the TPS25762-Q1 to the TCA640 GPIO expander
4-5 and 7-8 LM75 Temp Sense Connect the I2C1 bus of the TPS25762-Q1 to LM75 temperature sensor
9-10 and 10-11 EEPROM Connect the I2C1 bus of the TPS25762-Q1 to the TCA640 EEPROM

J3 NTC Selection Jumper

The J3 header is used to verify the Thermal Foldback function. The NTC pin actually detects the voltage of external NTC circuit and can be connected to thermistor (NTC or PTC) divider or NTC_VAR. NTC_VAR is the output of TPL0102, which is a I2C digital potentiometer. The divider footprints allows the use of either PTC or NTC resistors to match what is used in the system represented. This combinations is used to test the thermal foldback function. The thermistor assembled on the EVM is positive temperature coefficient (PTC).

TPS25762DQ1EVM J3 NTC Selection Jumper Figure 2-7 J3 NTC Selection Jumper
Table 2-6 J3 NTC Selection Jumper
Pins Label Description
1-2 NTC Connect NTC resistor to TPS25762-Q1 NTC pin
2-3 NTC VAR Connect the digital pot to the NTC pin

J8 TMP75B-Q1 Alert Connection Jumper

TPS25762DQ1EVM J8 TMP75B-Q1 Alert Connection Jumper Figure 2-8 J8 TMP75B-Q1 Alert Connection Jumper
Table 2-7 J8 TMP75B-Q1 Alert Connection Jumper
Pins Label Description
1-2 IRQ Connect the active low output of the TMP75B-Q1 pin to the IRQ pin (GPIO9 of the TPS25762-Q1)
3-4 NTC Connect the active low output of the alert pin of the TMP75B-Q1 to the NTC pin of the TPS25762-Q1
5-6 NTC Connect the inverted (active high) output of the alert pin of the TMP75B-Q1 to the NTC pin of the TPS25762-Q1