SMM665B
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
Description
Conditions
tDPON = 0.64ms
Min
Typ
Max
Unit
Programmable Power-on delay from tDPON = 12.5ms
tDPON
-15
tDPON
+15
%
VMX out-of-fault to PUPY active
tDPON = 25ms
DPON = 50ms
tDPOFF = 0.64ms
t
Programmable Power-off delay from tDPOFF = 12.5ms
tDPOFF
tPRTO
tSTT
-15
-15
-15
tDPOFF
tPRTO
tSTT
+15
+15
+15
%
%
%
VMX off to PUPY inactive
tDPOFF = 25ms
t
DPOFF = 50ms
tPRTO = 0.64ms
Programmable Reset Time-Out
Period
tPRTO = 25ms
tPRTO = 100ms
tPRTO = 200ms
tSTT = OFF
Programmable Sequence
Termination Timer
tSTT = 100ms
tSTT = 200ms
tSTT = 400ms
Time for ADC conversion
of all 11 channels
Update period for Active
DC Control of channels
A – F
10-bit ADC sampling period
tADC
2
ms
ms
Active DC Control sampling period
tDC_CONTROL
1.7
Slow Margin, + 10%
change in voltage with
0.1% ripple
850
85
ms
ms
TRIM_CAP=1µF
Fast Margin, + 10%
change in voltage with
0.1% ripple
TMARGIN
Margin Time from Nominal
TRIM_CAP=1µF
Summit Microelectronics, Inc
2089 1.1 10/20/04
10
SUMMIT [ SUMMIT MICROELECTRONICS, INC. ]
