Datasheet

Test Points

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5 Test Points

Table 1. TPS249xEVM Test Points

TEST POINT NAME DESCRIPTION

TP1 VIN Input voltage power supply

TP2 GND Ground

TP3 EN-UV Enable signal, high true (and under-voltage detection)

TP4 None

TP5 PROG Program input

TP6 CT Fault timer capacitor

TP7 OV Over-voltage detection

TP8 IMON Output current monitor

TP9 GATE Gate output

TP10 PG Power good signal, low true

TP11 FLT Fault signal, low true

TP12 VOUT Output voltage

TP13 GND Scope ground test point

TP14 GND Scope ground test point

TP15 GND Scope ground test point

TP16 GND Scope ground test point

TP17 GND Scope ground test point

TP18 SENSE Low-side sense resistor

6 Connectors

Table 2. Connectors

CONNECTOR DESCRIPTION

J1 Main power input, VIN

J3 Main power ground, GND

J2 Load

J4 Load ground, GND

7 Jumpers

None.

8 Switches

8.1 Enable Switch, S1

The Enable slide switch turns on the hot plug controller to ramp the output voltage .When the switch is off,

the output is off.

9 Indicators

• Green LED indicator for Power Good (PG)

• Red LED indicator for FAULT (FLT)

Using the TPS2492/3 Hot Swap Controller SLUU425A– May 2010– Revised March 2011

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