SMB110

Preliminary Information

Summit Microelectronics, Inc

2099 2.3 3/1/2005

23

Figure 7 – Power-on sequencing flow chart: There are three automated power-on sequencing modes, and a

manual mode.

APPLICATIONS INFORMATION (CONTINUED)

R E S T A R T A FTE R P O W E R -

OF F OR

F O RCE - S HU T D O W N

ON C O M M A N D

BE G I N

SEQ U E N C I N G

SEQ U E N C E

PO SI T I O N 1

NO R M A L

S E Q U E NCI N G

C URR E N T

SEQ U E N C E

PO S I T I O N

SEQ U E N C I N G

W I TH E N A B LE

S E Q U E NCI NG

W I T H CH A N NE L

B YPA S S

EN A B L E = P W R E N 0 PI N

XO R

I 2 C PW R EN A B L E B I T

CH A NNE L - S P E C I F I C

PR O G R A M M A B L E

OP T I ON S

EN A B L E = P W R E N 0 PI N

XO R

I 2 C P W R E N A B L E BI T

PO W E R

ON D E L A Y

PO W E R

ON D E L A Y

PO W E R

ON D E L A Y

NE X T

SE Q U EN C E

PO SI T I O N

WA I T F O R

EN A B L E

EN A B L E

LO W

EN AB L E

HI G H

EN A B L E

LO W

EN A B L E

HI G H

SO F T -

ST AR T

WA I T F O R

EN A B L E

V O U T <=U V

MO N I T O R

V O U T <=U V

SO F T -

STA R T

EN AB L E

HI G H

EN A B L E

LO W