SMM465
Preliminary Information
AC OPERATING CHARACTERISTICS
Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND. See
Figure 5 and 6 Timing diagrams.
Symbol
t
DPON
Description
Programmable Power-on delay from
VM
X
out-of-fault to PUP
X
active
Programmable Power-off delay from
VM
X
off to PUP
X
inactive
Programmable Reset Time-Out
Period
Conditions
t
DPON
= 0.64ms
t
DPON
= 12.5ms
t
DPON
= 25ms
t
DPON
= 50ms
t
DPOFF
= 0.64ms
t
DPOFF
= 12.5ms
t
DPOFF
= 25ms
t
DPOFF
= 50ms
t
PRTO
= 0.64ms
t
PRTO
= 25ms
t
PRTO
= 100ms
t
PRTO
= 200ms
t
STT
= OFF
t
STT
= 100ms
t
STT
= 200ms
t
STT
= 400ms
Time for ADC conversion
of all 11 channels
Update period for Active
DC Control of channels
A–F
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
Min
-15
Typ
t
DPON
Max
+15
Unit
%
t
DPOFF
-15
t
DPOFF
+15
%
t
PRTO
-15
t
PRTO
+15
%
t
STT
t
ADC
t
DC_CONTROL
Programmable Sequence
Termination Timer
10-bit ADC sampling period
Active DC Control sampling period
-15
t
STT
2
1.7
+15
%
ms
ms
850
ms
T
MARGIN
Margin Time from Nominal
85
ms
Summit Microelectronics, Inc
2085 1.1 05/27/04
10
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
