SMM764

Preliminary Information

Summit Microelectronics, Inc

2098 1.1 6/29/2005

11

Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND. See Figure 5

and 6 Timing diagrams.

Symbol

Description

Conditions

Min

Typ

Max

Unit

Programmable power-on delay

from restart timer expiration to

-25

+25

%

Programmable power-off delay

-25

+25

%

Programmable reset time-out delay

-25

+25

%

Programmable sequence

termination timer

-25

+25

%

Fault-triggered restart delay

Time from restart timer

after a fault-triggered power-

off or force-shutdown.

2.4

s

Fault-triggered restart delay

accuracy

-25

+25

%

Command-triggered restart delay

Time from restart timer

after command-triggered

power-off or force-shutdown.

12.5

ms

Command-triggered restart delay

accuracy

-25

+25

%

10-bit ADC sampling period

Time for ADC conversion of

all 9 channels

2.0

ms

ADOC sampling period

Update period for ADOC of

channels

A – D

1.7

ms

Slow Margin, + 10% change

in voltage with 0.1% ripple

TRIM_CAP=1

µF

850

ms

Margin Time from Nominal

Fast Margin, + 10% change

in voltage with 0.1% ripple

TRIM_CAP=1

µF

85

ms

AC OPERATING CHARICTERISTICS