Datasheet

6.1 Test Points
6.2 Connectors
6.3 Jumpers
www.ti.com Board Outline
Test Points TP14, TP15, TP16, TP17, are not installed. These are placed on the board unmarked near
Load and Load Return. This is a user option to hardwire additional capacitors, etc to the output.
Table 2. Test Points
TEST POINT NAME DESCRIPTION
TP1 VIN Input voltage power supply
TP2 4.3 V REF $0.3 V reference
TP3 EN Enable signal, high true
TP4 FLT Fault signal, low true
TP5 PG Power good signal, low true
TP6 IMON Output current monitor, @@Volts / Amp
TP7 LATCH Latch signal, high true, low for retry
TP8 VOUT Output voltage
TP9 CT Fault timer capacitor
TP10 GND Scope ground test point
TP11 GND Scope ground test point
TP12 GND Scope ground test point
TP13 GND Scope ground test point
Table 3. Connectors
CONNECTOR DESCRIPTION
J1 Main power input, VIN
J2 Main power ground, GND
J4 Load
J5 Load ground, GND
Jumper J6 is used to disconnect the LEDs for test measurement of TPS2420 quiescent current. This
jumper is normally installed.
Table 4. Jumpers
JUMPER DESCRIPTION
J3 TPS2420 only off = latch, on = retry
J6 Installed for normal operation
SLUU343 – January 2009 TPS2420 Hot Swap Controller System Test Board 7
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