Texas Instruments Evaluation Module for TPS54425 4.5V to 18V Input, 4A Synchronous Step-Down SWIFT Converter TPS54425EVM TPS54425EVM-608 Datenbogen
Produktcode
TPS54425EVM-608
Test Setup and Results
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4.1
Input/Output Connections
The TPS54425EVM-608 is provided with input/output connectors and test points as shown in
. A
power supply capable of supplying 2 A must be connected to J1 through a pair of 20 AWG wires. The load
must be connected to J2 through a pair of 20 AWG wires. The maximum load current capability is 2 A.
Wire lengths must be minimized to reduce losses in the wires. Test point TP1 provides a place to monitor
the V
must be connected to J2 through a pair of 20 AWG wires. The maximum load current capability is 2 A.
Wire lengths must be minimized to reduce losses in the wires. Test point TP1 provides a place to monitor
the V
IN
input voltages with TP2 providing a convenient ground reference. TP8 is used to monitor the output
voltage with TP9 as the ground reference.
Table 4. Connection and Test Points
Reference Designator
Function
J1
V
IN
(see
for V
IN
range)
J2
V
OUT
, 1.05 V at 2 A maximum
JP1
EN control. Connect EN to OFF to disable, connect EN to ON to enable.
TP1
V
IN
test point at V
IN
connector
TP2
GND test point at V
IN
TP3
EN test point
TP4
Analog ground test point
TP5
Switch node test point
TP6
Power good test point
TP7
Output voltage test point
TP8
Ground test point at output connector
4.2
Start-Up Procedure
1. Ensure that the jumper at JP1 (Enable control) is set from EN to OFF.
2. Apply appropriate VIN voltage to VIN and PGND terminals at J1.
3. Move the jumper at JP1 (Enable control) to cover EN and ON. The EVM enables the output voltage.
2. Apply appropriate VIN voltage to VIN and PGND terminals at J1.
3. Move the jumper at JP1 (Enable control) to cover EN and ON. The EVM enables the output voltage.
4
TPS54425EVM-608 4-A, SWIFT™ Regulator Evaluation Module
SLVU382 – August 2010
Copyright © 2010, Texas Instruments Incorporated