參數(shù)資料
型號(hào): TPS54980EVM-022
廠商: Texas Instruments, Inc.
英文描述: 9-Amp SWIFT Regulator Evaulation Module(9A SWIFT穩(wěn)壓器TPS54980的評(píng)估模塊)
中文描述: 9放大器模塊的SWIFT穩(wěn)壓Evaulation(第9A SWIFT的穩(wěn)壓器TPS54980的評(píng)估模塊)
文件頁(yè)數(shù): 24/34頁(yè)
文件大小: 827K
代理商: TPS54980EVM-022
Power Up and Down
2-10
Figure 212. Power Down With Tracking
VO I/O 500 mV/div
t Time 1
m
s/div
VO Core 500 mV/div
The TPS54980EVM-022 EVM provides the ability to change the slew rate of
the output voltage of the core regulator by using jumper JP2 (see schematic
in Figure 41). If jumper JP2 is set so that R8 is connected in parallel to R7,
ratiometric power sequencing is implemented. For ratiometric sequencing, the
following condition must to be met: if R6 = 10 k
then R8 II R7 = (R7
×
0.891)/(V
I/O
0.891). In this case, the I/O and core voltages reach their
nominal values at the same time. The waveforms for ratiometric power up and
down are shown in Figure 213 and Figure 214.
Figure 213. Power Up With Ratiometric Sequencing
VO I/O 500 mV/div
t Time 500
μ
s/div
VO Core 500 mV/div
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