Texas Instruments TPS55340EVM-017, Руководство пользователя, Страница: 10 / 22

SW (20.0 V/div)
EN (2.00 V/div)
V
IN
(5.00 V/div)
V
OUT
(10.0 V/div)
Timebase (2.00 ms/div)
SW (20.0 V/div)
V
IN
AC Coupled (50.0 mV/div)
I
L
(1.00 A/div)
Timebase (1.00 µs/div)
Test Setup and Results
www.ti.com
10 SLVU668B – April 2012 – Revised July 2019
Submit Documentation Feedback
Copyright © 2012–2019, Texas Instruments Incorporated
TPS55340EVM-017, 5-V to 12-V Input, 24-V Output Boost Evaluation Module
Figure 12 shows the EVM input voltage ripple. The output current is the rated full load of 1.9 A at V
IN
= 12
V. The ripple is measured directly across the input capacitor. C2.
Figure 12. TPS55340EVM-017 V
IN
= 12-V Input Voltage Ripple
4.10 Powering Up and Down with EN
Figure 13 shows the start-up waveforms for the EVM. The input voltage is 5 V, the EN goes high and the
output voltage ramps from V
IN
to 24V. The load is 120 Ω .
Figure 13. TPS55340EVM-017 Power Up With EN