Texas Instruments LM3481 SEPIC Evaluation Board LM3481SEPICEVAL/NOPB LM3481SEPICEVAL/NOPB 数据表
产品代码
LM3481SEPICEVAL/NOPB
C
OUT
OSCILLOSCOPE
Bare Wire
V
OUT
GND
LM3481
EVALUATION BOARD
VOUT
VIN
GND
GND
0-25V, 6A
DC Power Supply
Electronic Load
0A
±
3A
DVM
P2
P1
P3
P4
DVM
Powering and Loading Considerations
2
Powering and Loading Considerations
Read this entire page prior to attempting to power the evaluation board.
2.1
Qucik Setup Procedure
1. Use an input power supply with at least 5A current capability. Connect the positive output of the power
supply to the V
IN
terminal P1. Connect the negative output of the power supply to the input GND
terminal P2.
2. Connect a load with 3A capability to the V
OUT
terminal P3 and GND terminal P4.
3. To set the output voltage to 5V, the J2 jumper should be out. If the desired output voltage is 12V, the
J2 jumper should be in.
4. Set V
IN
to 12V with no load being applied. Turn on the input power supply. Once the input voltage is
applied, the output voltage should be in regulation.
5. Adjust the input voltage and load current and set as desired while making sure that they are in range
as described above.
Note: Do not change jumper settings while the board is powered on.
3
Connection Diagram
Figure 1. Basic Test Setup for the LM3481 SEPIC Evaluation Board
Figure 2. Output Voltage Ripple Measurement Setup
2
AN-2094 LM3481 SEPIC Evaluation Board
SNVA461A – September 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated