SLUUDA5 June   2025 TPS4812-Q1

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Overview
    2. 2.2 General Configurations
      1. 2.2.1 Physical Access
      2. 2.2.2 Test Equipment and Setup
        1. 2.2.2.1 Power Supplies
        2. 2.2.2.2 Meters
        3. 2.2.2.3 Oscilloscope
        4. 2.2.2.4 Loads
  8. 3Implementation Results
    1. 3.1 Test Setup and Procedures
      1. 3.1.1 Power-up with EN Control
      2. 3.1.2 Overcurrent Protection Test
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill Of Materials (BoM)
  10. 5Additional Information
    1.     Trademarks

2.2.1 Physical Access

Table 2-2 lists the TPS48120Q1EVM Evaluation Board input and output connector functionality. Table 2-3 and Table 2-4 describe the test point availability and the jumper functionality.

Table 2-2 Input and Output Connector Functionality
ConnectorLabelDescription
T1VINPower input connector to the positive rail of the input power supply
T4PGNDGround connection for the power supply
T2VOUTPower output connector to the positive side of the load
T3PGNDGround connection for the load
Table 2-3 Test Points Description
Test PointsLabelDescription
TP1VINInput power supply to the EVM
TP2VOUTOutput from the EVM
TP3EN/UVLOEnable control (Active high) and undervoltage input
TP4GATEGATE of the external Main MOSFET
TP5G2GATE of the charging MOSFET
TP6TP6Voltage sense node for FET diagnosis
TP7INP1Control input of external discharge FET
TP8INP2Control input of external charge FET
TP9SCP_TESTInternal short circuit comparator (SCP) diagnosis input.
TP10INP1/Inversion of control input for external discharge FET
TP11INP2/Inversion of control input external charge FET
TP12TMRFault timer voltage
TP13VAUXAuxiliary supply to bias the LEDs
TP14RS+Positive terminal of current sense input
TP15RS-Negative terminal of current sense input
TP16, TP17PGNDPower Ground
TP18GNDGround
TP19FLTFault output
Table 2-4 Jumper and LED Descriptions
JumperLabelDescription

J5

LPM/

1-2 position forces the device to low power mode

J6I_DIR

Monitor to determine I_DIR output. Asserts low when current flows in reverse direction.

1-2 Position drives signal to ground

J7TMRRetry behavior selection.
1-2 Position sets 1.2 s delay.
3-4 Position sets 12 s delay.
5-6 Position sets the controller in Latch-off mode.
J8

I2T

I2T Level selection.
1-2 Position sets 330ms.
3-4 Position sets 1s.
J9

IOC

Overcurrent protection selection.
1-2 Position sets limit to 16A.
2-3 Position sets limit to 36A.

J10

Ground diode bypass.

D8
(RED – LED)		D8Fault indicator. LED turns ON for NTC based external FET overtemperature, short-circuit fault, I2T, charge pump UVLO.