SMM764 SUMMIT Microelectronics, Inc:, SMM764 Datasheet - Page 11

• Manufacturer Part Number: SMM764
• Description: Four-channel Active Dc Output Controller, Monitor, Marginer And Sequencer With Sequence-link
• Manufacturer: SUMMIT Microelectronics, Inc:

Summit Microelectronics, Inc
Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND. See Figure 5
and 6 Timing diagrams.
T
AC OPERATING CHARICTERISTICS
t
DC_CONTROL
t
Symbol
FTRD
CTRD
t
t
MARGIN
t
t
t
t
T
DPOFF
DPON
PRTO
t
CTRD
FTRD
STT
ADC
ACC
ACC
Programmable power-on delay
from restart timer expiration to
PUP
Programmable power-off delay
from VM
Programmable reset time-out delay
Programmable sequence
termination timer
Fault-triggered restart delay
Fault-triggered restart delay
accuracy
Command-triggered restart delay
Command-triggered restart delay
accuracy
10-bit ADC sampling period
ADOC sampling period
Margin Time from Nominal
X
active.
X
off to PUP
Description
X
inactive
2098 1.1 6/29/2005
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Time from restart timer
expiration to PUP
after a fault-triggered power-
off or force-shutdown.
Time from restart timer
expiration to PUP
after command-triggered
power-off or force-shutdown.
Time for ADC conversion of
all 9 channels
Update period for ADOC of
channels
A – D
Slow Margin, + 10% change
in voltage with 0.1% ripple
TRIM_CAP=1µF
Fast Margin, + 10% change
in voltage with 0.1% ripple
TRIM_CAP=1µF
DPON
DPON
DPON
DPON
DPOFF
DPOFF
PRTO
PRTO
PRTO
PRTO
STT
STT
STT
STT
= OFF
= 100ms
= 200ms
= 400ms
= 0.64ms
= 25ms
= 100ms
= 200ms
= 0.64ms
= 12.5ms
= 25ms
= 50ms
= 0.64ms
= 12.5ms
Conditions
X
X
active
active
Min
-25
-25
-25
-25
-25
-25
t
Preliminary Information
t
t
t
t
DPOFF
12.5
Typ
850
DPON
PRTO
t
CTRD
FTRD
2.4
2.0
1.7
85
STT
SMM764
Max
+25
+25
+25
+25
+25
+25
Unit
ms
ms
ms
ms
ms
%
%
%
%
%
%
s
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