Texas Instruments High Performance Dual Output Synchronous Buck Evaluation Module using the TPS51220A TPS51220AEVM-476 TPS51220AEVM-476 데이터 시트
제품 코드
TPS51220AEVM-476
V1
V3
V4
V5
V6
12V/10A
DC Power
Source
+
-
V2
Electronic
Load #2.
3.3V/8A
+
-
Electronic
Load #1.
5V/8A
+
-
TP7
(TP8)
TP2
(TP3)
Metal Ground
Barrel
Probe Tip
Test Setup
5
Test Setup
5.1
Test Equipment
Voltage Source: The power source must be capable of supplying 8 VDC to 20 VDC at up to 10 A.
Multimeters: A minimum of three voltage meters are required. Other voltage meters can be used to
monitor some of the test points.
monitor some of the test points.
Output Load: Two constant current electronic loads are recommended. They must be able to sink up to
10 A when the output is 3.3 V or 5V.
10 A when the output is 3.3 V or 5V.
Oscilloscope: A minimum 50-MHz digital oscilloscope and a voltage probe is required. The scope can be
used to measure output ripple and monitor some of the test points
used to measure output ripple and monitor some of the test points
Fan: A fan is not required when testing the EVM
Recommended Wire Gauge: Both loads and input should be connected using a minimum gauge wire of
AWG#16. Also these connections should be kept as short as possible.
AWG#16. Also these connections should be kept as short as possible.
5.2
Recommended Test Setup
Figure 2. TPS51220A EVM-476 Recommended Test Set Up
Figure 3. Recommended
“
Tip and Barrel
”
Technique to Measure Output Ripple Voltage
6
High Performance Dual Output Synchronous Buck EVM
SLUU381A
–
September 2009
–
Revised May 2011
Copyright
©
2009
–
2011, Texas Instruments Incorporated