Texas Instruments TLV62130EVM-505 Evaluation Module TLV62130EVM-505 TLV62130EVM-505 데이터 시트
제품 코드
TLV62130EVM-505
Added Resistor
Cut This Trace
Setup
1.3.3
Loop Response Measurement
The loop response of the TLV621x0EVM-505 can be measured with two simple changes to the circuitry.
First, install a 10-
First, install a 10-
Ω resistor across the pads in the middle of the back of the PCB. The pads are spaced to
allow installation of 0805- or 0603-sized resistors. Second, cut the trace between the via on the output
voltage and the trace that connects to the VOS pin via. These changes are shown in
voltage and the trace that connects to the VOS pin via. These changes are shown in
. With these
changes, an ac signal (10-mV, peak-to-peak amplitude recommended) can be injected into the control
loop across the added resistor.
loop across the added resistor.
Figure 1. Loop Response Measurement Modification
2
Setup
This section describes how to properly use the TLV621x0EVM-505.
2.1
Input/Output Connector Descriptions
J1 – VIN
Positive input connection from the input supply for the EVM. Use when the steady-
state input current is less than 1 A. Otherwise, use J8.
state input current is less than 1 A. Otherwise, use J8.
J2 – S+/S–
Input voltage sense connections. Measure the input voltage at this point.
J3 – GND
Return connection from the input supply for the EVM. Use when the steady-state
input current is less than 1 A. Otherwise, use J8.
input current is less than 1 A. Otherwise, use J8.
J4 – VOUT
Output voltage connection. Use when the steady-state output current is less than 1
A. Otherwise, use J9.
A. Otherwise, use J9.
J5 – S+/S–
Output voltage sense connections. Measure the output voltage at this point.
J6 – GND
Output return connection. Use when the steady-state output current is less than 1
A. Otherwise, use J9.
A. Otherwise, use J9.
J7 – PG/GND
The PG output appears on pin 1 of this header with a convenient ground on pin 2.
J8 – VIN/GND
Pin 1 is the positive input connection with pin 2, serving as the return connection.
Use this terminal block if the steady-state input current is greater than 1 A.
Use this terminal block if the steady-state input current is greater than 1 A.
J9 – VOUT/GND
Pin 2 is the output voltage connection with pin 1, serving as the output return
connection. Use this terminal block if the steady-state output current is greater
than 1 A.
connection. Use this terminal block if the steady-state output current is greater
than 1 A.
J10 – SS/TR & GND The SS/TR input appears on pin 1 of this header with a convenient ground on pin
2.
JP1 – EN
EN pin input jumper. Place the supplied jumper across ON and EN to turn on the
IC. Place the jumper across OFF and EN to turn off the IC.
IC. Place the jumper across OFF and EN to turn off the IC.
JP2 – DEF
DEF pin input jumper. Place the supplied jumper across HIGH and DEF to set the
output voltage at 5% above nominal. Place the jumper across LOW and DEF to
set the output voltage at the nominal level.
output voltage at 5% above nominal. Place the jumper across LOW and DEF to
set the output voltage at the nominal level.
3
SLAU416A – January 2012 – Revised July 2013
TLV62130EVM-505 and TLV62150EVM-505 Evaluation Modules
Copyright © 2012–2013, Texas Instruments Incorporated