Texas Instruments Evaluation Module for TPS40322 TPS40322EVM-679 TPS40322EVM-679 데이터 시트
제품 코드
TPS40322EVM-679
Test Setup
5
Test Setup
5.1
Test Equipment
Voltage Source: Input DC source, the input voltage source (VIN) shall be a 0-V to 15-V variable DC
source capable of 10 A
source capable of 10 A
DC
. Connect VIN to J1 as shown in
Multimeters: Five Multimeters
1. Volt meter, V1, 0 V
DC
to 5 V
DC
.
2. Volt meter, V2, 0 V
DC
to 5 V
DC
.
3. Volt meter, V3, 0 V
DC
to 15 V
DC
.
4. Current meter, A1, 0 A
DC
to 10 A
DC
. (Optional: to improve current measurement use a 0-mV to 100-mV
voltmeter and a 1-mV/A shunt)
5. Current meter, A2, 0 A
DC
to 10 A
DC
. (Optional: to improve current measurement use a 0-mV to 100-mV
voltmeter and a 1-mV/A shunt)
Output Load: Loads, LOAD1 shall be an Electronic Constant Current Mode Load capable of 0 A
DC
to 10
A
DC
at 1.2 V. LOAD2 shall be an Electronic Constant Current Mode Load capable of 0 A
DC
to 10 A
DC
at 1.8
V.
Oscilloscope: A digital or analog oscilloscope can be used to measure the ripple voltage on VOUT. The
oscilloscope should be set for 20-MHz bandwidth, AC coupled. Test points TP3 and TP4 can be used to
measure VOUT1 and test points TP13 and TP14 can be used to measure VOUT2. Use the tip and barrel
method shown in
oscilloscope should be set for 20-MHz bandwidth, AC coupled. Test points TP3 and TP4 can be used to
measure VOUT1 and test points TP13 and TP14 can be used to measure VOUT2. Use the tip and barrel
method shown in
to avoid inducing additional noise due to the large ground loop area that would
result from using the probe's ground lead.
Recommended Wire Gauge:
•
VIN to J1: The connection from VIN to the J1 connector of the EVM can carry as much as 5 A
DC
. The
wire gauge shall be 18 AWG minimum and no longer than two feet for each connection, VIN+ to J1+,
and VIN- to J1-.
and VIN- to J1-.
•
J2 to LOAD1: The connection from J2 of the EVM to LOAD1 can carry as much as 10 A
DC
. The wire
gauge shall be 14 AWG minimum and no longer than two feet for each connection, J2+ to LOAD1+,
and LOAD1- to J2-.
and LOAD1- to J2-.
•
J3 to LOAD2: The connection from J3 of the EVM to LOAD2 can carry as much as 10 A
DC
. The wire
gauge shall be 14 AWG minimum and no longer than two feet for each connection, J3+ to LOAD2+,
and LOAD2- to J3-.
and LOAD2- to J3-.
5.2
Recommended Test Setup
Shown in
is the basic test set up recommended to evaluate the TPS40322EVM-679.
Working at an ESD workstation, make sure that any wrist straps, bootstraps or mats are connected
referencing the user to earth ground before power is applied to the EVM. Electrostatic smock and safety
glasses should also be worn.
referencing the user to earth ground before power is applied to the EVM. Electrostatic smock and safety
glasses should also be worn.
5
SLUU506
–
June 2011
Dual Output Synchronous Buck Converter
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©
2011, Texas Instruments Incorporated