SLVUC34 March   2021 TPS2521

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 EVM Features
    2. 1.2 EVM Applications
  3. 2Description
  4. 3Schematic
  5. 4General Configurations
    1. 4.1 Physical Access
    2. 4.2 Test Equipment and Set up
      1. 4.2.1 POWER SUPPLIES
      2. 4.2.2 METERS
      3. 4.2.3 OSCILLOSCOPE
      4. 4.2.4 LOADS
  6. 5Test Setup and Procedures
    1. 5.1 Start up the eFuse
    2. 5.2 Over Current Test
    3. 5.3 Output Hot-Short Test
    4. 5.4 Power Up into Short Test
    5. 5.5 Overvoltage Clamp Test
    6. 5.6 Reverse Current Blocking Test
  7. 6EVAL Board Assembly Drawings and Layout Guidelines
    1. 6.1 PCB Drawings
  8. 7Bill Of Materials (BoM)

4.1 Physical Access

Table 4-1 lists the TPS25210EVM eFuse Evaluation Board input and output connector functionalities. Table 4-2 and Table 4-3 describe the availability of test points and the functionalities of the jumpers . Table 4-4 describes the functions of signal LEDs.

Table 4-1 Input and Output Connector Functionality
ConnectorLabelDescription
J1VIN(+), PGND(–)Intput Power to the eFuse
J2VOUT(+), PGND(–)Output

Power from the eFuse

Table 4-2 Test Points Description
Test PointsLabelDescription

TP1

VIN

Input voltage

TP2

VOUT

Output voltage
TP3

VCC_EXT

External VCC voltage for Power Good indicator

TP4

EN/UVLO

EN/UVLO signal

TP5

OVCSEL

OVCSEL signal

TP6

ITIMER

ITIMER signal

TP7

dVdT

Output voltage ramp control

TP8

ILM

Current limit and monitor signal

TP9

PG

Power good signal

TP10

PGTH

Power good threshold signal

TP11 and TP12

PGND

Power GND signal

TP13

GND

IC GND signal

Table 4-3 Jumper Descriptions and Default Positions
JumperLabelDescription

Default Jumper Position

J3

dVdT

1-2 Position sets Output Slew Rate to 0.6 V/ms

3-4

3-4 Position sets Output Slew Rate to 0.2 V/ms
5-6 Position sets Output Slew Rate to 0.09 V/ms

J4

OVCSEL

1-2 Position sets input OVC threshold at 3.87 V

No jumper

No jumper connection sets input OVC threshold at 5.73 V

J5

ITIMER1-2 Position sets the transient current blanking period to 0.183 ms

3-4

3-4 Position sets the transient current blanking period to 1.83 ms
5-6 Position sets the transient current blanking period to 18.3 ms

J6

ILM

1-2 Position sets the current limit to 0.5 A

5-6

3-4 Position sets the current limit to 2 A
5-6 Position sets the current limit to 4.44 A

J7

VCC Connection

1-2 Position connects external voltage, VCC_EXT as reference for PG

2-3

2-3 Position connects on board generated voltage , VCC as reference for PG
Table 4-4 LED Descriptions

LED

Description

D4

When ON, indicates that reverse polarity voltage is applied at the input

D5

When ON, indicates that Power Good is asserted