Texas Instruments TPS53119EVM-690, Руководство пользователя

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T
I
NSTRUMENTS
EXAS
V1
A1
DC
Source
Vin
-
Load
+
V2
FAN
+
-
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Test Setup
7 SNVU589 – December 2017
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TPS53119EVM-690 User Guide
5.2 Recommended Test Setup
Figure 3. TPS53119EVM-690 Recommended Test Setup
Figure 3 is the recommended test setup to evaluate the TPS53119EVM-690. Working at an ESD
workstation, make sure that any wrist straps, bootstraps, or mats are connected referencing the user to
earth ground before power is applied to the EVM.
Input Connections:
1. Prior to connecting the dc input source V
IN
, it is advisable to limit the source current from V
IN
to 10 A
maximum. Ensure that V
IN
is initially set to 0 V and connected as shown in Figure 3 .
2. Connect a voltmeter V1 at TP7 (V
IN
) and TP8 (GND) to measure the input voltage.
3. Connect a current meter A1 to measure the input current.
Output Connections:
1. Connect load to J5, and set Load to constant resistance mode to sink 0 Adc before V
IN
is applied.
2. Connect a voltmeter V2 at TP14 (V
OUT
) and TP15 (GND) to measure the output voltage.
Other Connections:
Place a fan as shown in Figure 3 and turn it on, ensuring that air is flowing across the EVM.
6 Configurations
All jumper selections must be made prior to applying power to the EVM. Users can configure this EVM per
the following configurations.
6.1 Switching Frequency Selection
The switching frequency can be set by J1.
Default setting: 300 kHz