Texas Instruments Evaluation Module for TLV117125 TLV117125EVM-097 TLV117125EVM-097 데이터 시트
제품 코드
TLV117125EVM-097
Setup
2
Setup
This section describes the connectors on the EVM and how to properly connect, setup, and use the EVM.
2.1
Input/Output Connectors
2.1.1
J1 – V
IN
Input power-supply voltage connector. The positive-input lead and ground-return lead from the input power
supply should be twisted and kept as short as possible to minimize EMI transmission. Additional bulk
capacitance should be added between J1 and J2 if the supply leads are greater than six inches. For
example, an additional 47-µF electrolytic capacitor connected from J1 to GND can eliminate unwanted
ringing on the input, due to long wires.
supply should be twisted and kept as short as possible to minimize EMI transmission. Additional bulk
capacitance should be added between J1 and J2 if the supply leads are greater than six inches. For
example, an additional 47-µF electrolytic capacitor connected from J1 to GND can eliminate unwanted
ringing on the input, due to long wires.
2.1.2
J2 – GND
Return connector for the input power supply.
2.1.3
J3 – V
OUT
Regulated output voltage connector.
2.1.4
J4 – GND
Return connector for the output.
2.2
Soldering Guidelines
Solder rework modifing the EVM for the purpose of repair or any other application reasons must be
performed using a hot-air system to avoid damaging the integrated circuit (IC).
performed using a hot-air system to avoid damaging the integrated circuit (IC).
2.3
Equipment Setup
•
Set the power-supply voltage between 3.5 V and 5.5 V. Turn the power supply off. Connect the
positive voltage lead from the power supply to J1 (V
positive voltage lead from the power supply to J1 (V
IN
). Connect the ground lead from the power supply
to J2 (GND).
•
Connect a 0- to 1-A load between J3 (V
OUT
) and J4 (GND).
3
Operation
•
Turn on the power supply.
•
Vary the respective loads and V
IN
voltages as necessary for test purposes.
4
Test Results
This section provides typical-performance waveforms for the EVM printed-circuit board. Actual
performance data can be affected by measurement techniques and environmental variables; therefore,
these curves are presented for reference and may differ from actual results.
performance data can be affected by measurement techniques and environmental variables; therefore,
these curves are presented for reference and may differ from actual results.
4.1
Turn-on Waveform
shows the turn-on characteristic where 4 V is applied to V
IN
. The output drives a full load to 2.5
Ω
.
2
TLV117125EVM-097 Evaluation Module
SLVU684 – February 2012
Copyright © 2012, Texas Instruments Incorporated