Texas Instruments TPS53125EVM-599 데이터 시트
0
1
2
3
4
5
I
- Load Current - A
LOAD
50
55
60
65
70
75
80
85
90
95
h
-Efficiency-%
V = 8 V
I
V = 12 V
I
V = 22 V
I
TPS53125EVM-599 Test Data
www.ti.com
7. Decrease LOAD2 to 0 A.
5.4
Output Ripple Voltage Measurement Procedure
Perform the Output Ripple Voltage Measurement procedure in the following manner.
1. Increase V
IN
from 0 V to 12 Vdc.
2. Adjust LOAD1 to desired load between 0 Adc and 4 Adc.
3. Adjust LOAD2 to desired load between 0 Adc and 4 Adc.
4. Adjust V
3. Adjust LOAD2 to desired load between 0 Adc and 4 Adc.
4. Adjust V
IN
to desired load between 8 Vdc and 22 Vdc.
5. Connect oscilloscope probe to CN1 or CN2 shown in
6. Measure Output Ripple.
7. Decrease V
7. Decrease V
IN
to 0 Vdc.
8. Decrease LOAD1 to 0 A.
9. Decrease LOAD2 to 0 A.
9. Decrease LOAD2 to 0 A.
5.5
Equipment Shutdown
Shut down the equipment in the following manner.
1. Shut down oscilloscope.
2. Shut down V
2. Shut down V
IN
.
3. Shut down LOAD1.
4. Shut down LOAD2.
5. Shut down FAN.
4. Shut down LOAD2.
5. Shut down FAN.
6
TPS53125EVM-599 Test Data
through
present typical performance curves for the TPS53125EVM-599. 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.
curves are presented for reference and may differ from actual field measurements.
6.1
Efficiency
V
IN
= 8 V – 22 V, V
OUT1
= 1.05 V, I
OUT1
= 0 A – 4 A
Figure 3. TPS53125EVM-599 Efficiency vs Load Current
8
TPS53125EVM-599
SLVU392 – July 2010
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