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General Configurations
•
Set the output load at 1.0
Ω
±0.1
Ω
on CH1 and then enable the load. Turn on the VIN1 power supply.
Verify that the input current is limited as per the setting in
Table 10
. Verify the device is in auto-retry
mode as shown in
Figure 5
and FLTb1 RED LED (D2) turns on and off.
Figure 5. J4 = LO Current Limit Test Auto Retry (CH1)
•
Set the output load at 1.0
Ω
±0.1
Ω
on CH2 and then enable the load. Turn on the VIN2 power supply
and verify that the input current is limited as per the setting in
Table 10
. Also verify the device is in
latched-off mode and FLTb1 RED LED (D2) turns ON as shown in
Figure 6
.
Figure 6. J9 = “No Jumper” Current Limit Test with Latch (CH2)
•
Set the input power supply to zero volts and disconnect all equipment from the DUT.
11
SLVUA44 – June 2014
TPS25940XEVM-635: Evaluation Module for TPS25940X
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