Datasheet

Powering Up and Down
2-12
Figure 2–13. Powering Up With Ratiometric Sequencing
V
O
I/O 500 mV/div
Time Scale 500 µs/div
V
O
CORE 500 mV/div
Figure 2–14. Powering Down With Ratiometric Sequencing
V
O
I/O 500 mV/div
Time Scale 1 ms/div
V
O
CORE
500 mV/div
If jumper JP2 is set so that R8 is connected in parallel to R6, the core voltage
rises first during powering up and falls second during power down. The
waveforms with this type of sequencing are shown in Figure 2–15 and
Figure 2–16.