SLUUCV9 November   2023 TPS4800-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 Setup
    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 ON and OFF Control With INP Input
      3. 3.1.3 Overload and Short Circuit Protection Test
      4. 3.1.4 Overvoltage Protection Test
      5. 3.1.5 Short-Circuit Protection Diagnosis Test
      6. 3.1.6 Input Reverse Polarity 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

Physical Access

Table 3-2 lists the TPS4800Q1EVM Evaluation Board input and output connector functionality. Table 3-3 and Table 3-4 describe the test point availability and the jumper functionality.

Table 2-2 Input and Output Connector Functionality
ConnectorLabelDescription
J1VINPower input connector to the positive rail of the input power supply

J4

PGNDGround connection for the power supply

J2

VOUTPower output connector to the positive side of the load

J3

PGNDGround connection for the load
Table 2-3 Test Points Description
Test Points Label Description
TP1 RS+ Positive terminal of current sense input
TP2 RS- Negative terminal of current sense input
TP3 VIN Input power supply to the EVM
TP4

VOUT

Output from the EVM
TP5

EN/UVLO

Enable control (Active high) and undervoltage input
TP6

GATE

GATE of the external Main MOSFET
TP7, TP8

PGND

Power Ground
TP9

GND

Ground
TP11

TMR

Fault timer voltage
TP12 VAUX Auxiliary supply to bias the LEDs
TP13

INP

Control input of main MOSFET
TP14 INP/ Inversion of control input for main MOSFET

TP15

FLTb

Fault output

TP16

FLT_GD

Fault Output for gate drive UVLO

TP17

SCP_TEST Internal short circuit comparator (SCP) diagnosis input.

TP18, TP19

CAP_INS

Connector to insert output capacitor
Table 2-4 Jumper and LED Descriptions
JumperLabelDescription
J5CS_SELCurrent sense input selection.
1-2 Position selects low-side current sensing.
2-3 Position selects high-side current sensing.
J6SCP_TEST

Internal short circuit comparator (SCP) diagnosis input.
1-2 Position disables the diagnosis function

J7TMRShort-circuit protection delay setting.
1-2 Position sets 1 ms delay.
3-4 Position sets 10 ms delay.
5-6 Position sets the controller in Latch-off mode.

J8

ISCP

Short circuit protection threshold setting.
1-2 Position sets 5 A.
3-4 Position sets 10 A.
5-6 Position sets 15 A.
D4
(RED – LED)
D4Fault indicator. LED turns ON for under-voltage fault, short-circuit fault and during SCP comparator diagnosis
D5
(GREEN – LED)

D5

LED turns ON for GATE good condition