Texas Instruments 4A, 5V to 22V Input, 1.2Vout Converter Evaluation Module featuring TPS53114 TPS53114EVM-541 TPS53114EVM-541 데이터 시트
제품 코드
TPS53114EVM-541
Test Setup (Optional)
4.3.4
Frequency Select Voltage Monitoring – TP6 and TP2
The TPS53114EVM-541 provides a test point for monitoring or driving the FSEL pin. This allows the user
to monitor the voltage on the FSEL pin. To use TP6, Install a shunt in JP1, and connect a voltmeter
positive terminal to TP6 and negative terminal to TP2.
to monitor the voltage on the FSEL pin. To use TP6, Install a shunt in JP1, and connect a voltmeter
positive terminal to TP6 and negative terminal to TP2.
4.3.5
Output Capacitor Select Pin Voltage Monitoring -TP7
The TPS53114EVM-541 provides a test point for the monitoring output capacitor selection pin of the
TPS53114 controller. It is connected to V5FILT for conductive polymer electrolyte type output capacitor on
the EVM.
TPS53114 controller. It is connected to V5FILT for conductive polymer electrolyte type output capacitor on
the EVM.
4.3.6
Soft-Start – TP8 and TP2
The TPS53114EVM-541 provides a test point for monitoring the Soft-Start ramp voltage. This allows the
user to monitor the soft-start voltage during power on. To use TP8, connect an oscilloscope probe tip to
TP8, and use TP2 for the ground clip.
user to monitor the soft-start voltage during power on. To use TP8, connect an oscilloscope probe tip to
TP8, and use TP2 for the ground clip.
4.3.7
Enable– TP9
The TPS53114EVM-541 provides a test point for monitoring the Enable voltage. This allows the user to
monitor the enable voltage during power on and power off. To use TP9, install a shunt in JP2, and
connect an oscilloscope probe tip to TP9, and use TP2 for the ground clip.
monitor the enable voltage during power on and power off. To use TP9, install a shunt in JP2, and
connect an oscilloscope probe tip to TP9, and use TP2 for the ground clip.
5
Test Setup (Optional)
5.1
Equipment
5.1.1
Voltage Source
V
IN
must be a voltage source capable of 0 Vdc to 22 Vdc at a minimum 1 A. Connect V
IN
to J1 as shown in
5.1.2
Meters
A1: Input Current Meter. 0-Adc to 1-Adc ammeter
V1: Input Voltage Meter. 0-V to 22-V voltmeter
V2: Output Voltage Meter. 0-V to 2-V voltmeter
V1: Input Voltage Meter. 0-V to 22-V voltmeter
V2: Output Voltage Meter. 0-V to 2-V voltmeter
5.1.3
Loads
LOAD1: Output Load. Electronic load set for Constant Current or Constant Resistance capable of 0 Adc
to 4 Adc at 1.20 Vdc. Connect LOAD1 to J2 as shown in
to 4 Adc at 1.20 Vdc. Connect LOAD1 to J2 as shown in
5.1.4
Oscilloscope
For Output Voltage Ripple: Oscilloscope must be an analog or digital oscilloscope set for ac-coupled
measurement with a 20-MHz bandwidth limiting. Use 20-mV/division vertical resolution, 1-µs/division
horizontal resolution.
measurement with a 20-MHz bandwidth limiting. Use 20-mV/division vertical resolution, 1-µs/division
horizontal resolution.
For Switching Waveforms: Oscilloscope must be an analog or digital oscilloscope set for dc-coupled
measurement with 20-MHz bandwidth limiting. Use 2-V/division or 5-V/division vertical resolution and 1-
µs/division horizontal resolution.
measurement with 20-MHz bandwidth limiting. Use 2-V/division or 5-V/division vertical resolution and 1-
µs/division horizontal resolution.
5.1.5
Recommended Wire Gauge
VIN to J1: The connection between the source voltage (VIN) and J1 of TPS53114EVM-541 can carry as
much as 1 Adc of current. The minimum recommended wire size is AWG 18 with the total length of wire
less than 4 feet (2-foot input, 2-foot return).
much as 1 Adc of current. The minimum recommended wire size is AWG 18 with the total length of wire
less than 4 feet (2-foot input, 2-foot return).
5
SLVU373A – March 2010 – Revised May 2012
TPS53114EVM-541
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