Texas Instruments Evaluation Module for TPS2553DBVEVM-364 TPS2553DBVEVM-364 TPS2553DBVEVM-364 Datenbogen
Produktcode
TPS2553DBVEVM-364
4
EVM Setup
4.1
Recommended Test Equipment
4.2
Measuring the Short-Circuit Output Current-Limit
5V, 5A
0-W
+
IN
-
+
OUT
-
EVM
Oscilloscope
Current
Probe
FAULT
Voltage Probe
7" Twisted Pair, #20AWG
EVM Setup
www.ti.com
The following test equipment is recommended:
•
Two-channel storage oscilloscope
•
Current probe
•
Voltage probe
•
An adjustable power supply with a 2.5-V to 6.5-V output and a 10-A output current-limit
•
Volt-ohm meter
•
A passive or active load capable of handling 3 A.
The user should read the TPS2552/3 data sheet before using the EVM.
shows the EVM test setup for measuring current-limit. Switch S1 enables the power-distribution
switch into a short circuit for this measurement. For retry controllers,
shows the current waveform
for the TPS2552/3DRVEVM with a shorting jumper populating header J2;
shows the current
waveform with header J2 unpopulated.
For latch-off controllers Fig5 shows the current waveform for the TPS2552/3DRV EVM with a shorting
jumper populating header J2; Figure 6 shows the current waveform with header J2 unpopulated.
jumper populating header J2; Figure 6 shows the current waveform with header J2 unpopulated.
Figure 2. EVM Setup For Measuring Current-Limit
4
TPS2552/3, Power-Distribution Switch
SLUU339 – December 2008
With Adjustable Current-Limit EVM