Datasheet

Performance Data and Typical Characteristic Curves www.ti.com
5. Increase V
IN
from 0 Vdc to 12 Vdc.
6.2 Line/Load Regulation and Efficiency Measurement Procedure
1. Set up the TPS53129EVM-621 per Section 5.2.
2. Start up the TPS53129EVM-621 per Section 6.1.
3. Adjust V
IN
to desired value between 8 Vdc and 22 Vdc.
4. Adjust LOAD1/LOAD2 to desired load between 0 Adc and 4 Adc.
5. Read input voltage, output voltage, and input current from V1, V2/V3, and A1, respectively.
6. Shut down the TPS53129EVM-621 per Section 6.4.
6.3 Output Ripple Voltage Measurement Procedure
1. Set up the TPS53129EVM-621 per Section 5.2.
2. Start up the TPS53129EVM-621 per Section 6.1.
3. Adjust V
IN
to desired value between 8 Vdc and 22 Vdc.
4. Adjust LOAD1/LOAD2 to desired load between 0 Adc and 4 Adc.
5. Connect the oscilloscope probe to TP8 and TP4 for V
OUT1
, or TP7 and TP6 for V
OUT2
as shown in
Figure 2.
6. Measure output ripple.
7. Shut down the TPS53129EVM-621 per Section 6.4.
6.4 Shutdown Procedure
1. Set SW1 to DIS.
2. Set SW2 to DIS.
3. Decrease LOAD1 to 0 A, and shut down LOAD1.
4. Decrease LOAD2 to 0 A, and shut down LOAD2.
5. Decrease V
IN
to 0 V, and shut down V
IN
.
6. Shut down the fan.
7 Performance Data and Typical Characteristic Curves
Figure 4 through Figure 11 present typical performance curves for the TPS53129EVM-621. Because
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.
8
TPS53129EVM-621 Evaluation Module SLVU432–February 2011
Submit Documentation Feedback
© 2011, Texas Instruments Incorporated