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| MIC2590B_08 Datasheet, PDF (10/23 Pages) Micrel Semiconductor – Dual-Slot PCI Hot Plug Controller | |||
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Micrel, Inc.
Test Circuit
SCL
t4
SDA
Data In
SDA
Data Out
t1
t2
t3
Figure 1. SMBus Timing
MIC2590B
t5
VTHFAST
VTHFAST
3VGATE/5VGATE
1V
tOFF3/5
Figure 2. 3V/5V Current Limit Response Timing
ITHFAST
ILIM12[M]
IOUT
tOFF12[M]
Figure 3. +12V/â12V Current Limit Response Timing
IAUX(THRESH) Must Trip
May Not Trip
ILIM(AUX)
IOUT(AUX)
IOUT(AUX)
Figure 4. VAUX Current Limit Threshold
ISC(TRAN)
ILIM(AUX)
IOUT(AUX)
tSC(TRAN)
Figure 5. VAUX Current Limit Response Timing
September 2008
10
M9999-091808
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