Datasheet

www.ti.com TPS53127EVM-614 Test Data
5.3 Start Up/Shut Down Procedure
Increase V
IN
from 0V to 12Vdc
Vary LOAD1 from 0 – 4Adc
Vary LOAD2 from 0 – 4Adc
Vary V
IN
from 8Vdc to 22Vdc
Decrease V
IN
to 0Vdc
Decrease LOAD1 to 0A
Decrease LOAD2 to 0A
5.4 Output Ripple Voltage Measurement Procedure
Increase V
IN
from 0V to 12Vdc
Adjust LOAD1 to desired load between 0Adc and 4Adc
Adjust LOAD2 to desired load between 0Adc and 4Adc
Adjust V
IN
to desired load between 8Vdc and 22Vdc
Connect Oscilloscope Probe to CN1 or CN2 shown in Figure 3
Measure Output Ripple
Decrease V
IN
to 0Vdc
Decrease LOAD1 to 0A
Decrease LOAD2 to 0A
5.5 Equipment Shutdown
Shut Down Oscilloscope
Shut down V
IN
Shut down LOAD1
Shut down LOAD2
Shut down FAN
6 TPS53127EVM-614 Test Data
Figure 4 through Figure 11 present typical performance curves for the TPS53127EVM-614. Since actual
performance data can be affected by measurement techniques and environmental variables, these curves
are presented for reference and may differ from actual field measurements.
9
SLVU434–February 2011 TPS53127EVM-614
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