Texas Instruments TPS2020 Evaluation Module TPS2020EVM-290 TPS2020EVM-290 데이터 시트
제품 코드
TPS2020EVM-290
www.ti.com
3.3
Layout Considerations
4
EVM Setup
4.1
Recommended Test Equipment
4.2
Measuring Current Limit
EVM Setup
Figure 8. TPS20xxEVM-292 Bottom-Side Layout
The IN and OUT pins of U1 can carry significant current; so, traces to these pins should be of suitable
length and width to minimize the voltage drop to the load. Locate the 0.1-
length and width to minimize the voltage drop to the load. Locate the 0.1-
µ
F bypass capacitors close to
the IN and OUT pins of U1.
The following test equipment is recommended:
•
Two-channel storage oscilloscope
•
Current probe
•
Voltage probe
•
5 V at 5-A power supply
•
Volt-ohm meter
•
A passive or active load
The user should read the applicable data sheet before using the EVM.
shows the EVM test set up for measuring current limit. The power distribution switch is enabled
into a short circuit for this measurement.
shows the current waveform for TPS2051BEVM-290.
10
Single-Channel, Power-Distribution Switch EVM
SLVU226B – October 2007 – Revised December 2007