SMH4814
Preliminary Information
TIMING DIAGRAMS (CONTINUED)
Power-on Timing
Figure 7 illustrates some power on sequences, including the UV and OV differentials to their reference, and Power
Good cascading. Refer to the table on page 17 for more information on the tPDD and tCBD timings.
V12
11V≤V12≤13V
<tPUOVF
UV
<VOV
>VUV
OV
PD0
PD1
tPDD
V12-VGT
V12
VGATE_HS
2.5VREF
5V
DRAIN
SENSE
Programmable
level - VCB
CBSENSE
PUPX
<tCBD
tPGD0
tPGD1
PUPX
PUPX
tPGD2
tPGD3
PUPX
Figure 7 - SMH4814 Power-On Sequences
Summit Microelectronics, Inc
2080 2.0 07/21/05
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