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| SMH4046 Datasheet, PDF (11/51 Pages) List of Unclassifed Manufacturers – Hot-Swap, Active DC Output Control (ADOCTM) Power Manager with I2C lnterface | |||
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SMH4046
Preliminary Information
AC OPERATING CHARACTERISTICS
Over recommended operating conditions, unless otherwise noted. All voltages are relative to GND. See Figure 5A and 5B Timing
diagrams.
Symbol
Description
Conditions
Min
Typ
Max
tDOCT = 5.5 µs
tDOCT = 8.5 µs
tDOCT = 11.5 µs
tDOCT = 14.5 µs
tDOCT = 17.5 µs
tDOCT = 20.5 µs
tDOCT = 23.5 µs
tDOCT
Programmable Over Current Trip
Delay Time
tDOCT = 26.5 µs
tDOCT = 29.5 µs
-15
tDOCT = 32.5 µs
tDOCT = 35.5 µs
tDOCT = 38.5 µs
tDOCT = 41.5 µs
tDOCT = 44.5 µs
tDOCT = 47.5 µs
tDOCT = 50.5 µs
tDPON = 1 ms
tDPON
Programmable Power-on delay from tDPON = 20 ms
VMX out-of-fault to PUPY active
tDPON = 40 ms
-15
tDPON = 75 ms
tDPOFF = 1 ms
tDPOFF
Programmable Power-off delay from tDPOFF = 20 ms
VMX off to PUPY inactive
tDPOFF = 40 ms
-15
tDPOFF = 75 ms
tPRTO = 1 ms
tPRTO
Programmable Reset Time-Out
Period
tPRTO = 40 ms
tPRTO = 150 ms
-15
tPRTO = 300 ms
tSTT = 40 ms
Programmable Sequence
tSTT
Termination Timer
tSTT = 75 ms
tSTT = 150 ms
-15
tSTT = 300 ms
tADC
10-bit ADC sampling period
Time for ADC conversion
of all 11 channels
tDOCT
+15
tDPON
+15
tDPOFF
+15
tPRTO
+15
tSTT
+15
2
Update period for Active
tDC_CONTROL Active DC Control sampling period DC Control of channels
1.7
AâC
Slow Margin, + 10%
change in voltage with
0.1% ripple
850
TMARGIN Margin Time from Nominal
TRIM_CAP=1µF
Fast Margin, + 10%
change in voltage with
0.1% ripple
85
TRIM_CAP=1µF
Unit
%
%
%
%
%
ms
ms
ms
ms
Summit Microelectronics, Inc
2082 1.7 08/23/04
11
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