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| MIC2589 Datasheet, PDF (8/17 Pages) Micrel Semiconductor – SINGLE-CHANNEL NEGATIVE HIGH VOLTAGE HOT SWAP POWER CONTROLLERS/SEQUENCERS | |||
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MIC2589/2595
Timing Diagrams
ILIMIT
ILOAD
INLDTH
0A
t < tFLT
OVERCURRENT
EVENT
t ⥠tFLT
Load current is regulated
at ILIMIT = 50mV/RSENSE
tNLD
Output OFF
(at VDD)
VDRAIN
VUV or VOFF
(at VEE)
(at VEE)
Reduction in VDRAIN to support
ILIMIT = 50mV/RSENSE
(at VEE)
VUVL
(VUV â VEE)
(at VEE)
VUVH
(VUV â VEE)
Figure 1. Overcurrent and Undercurrent (No Load) Response
VSENSE - VEE
VGATE
100mV
tOCSENSE
1V
Figure 2. SENSE to GATE LOW Timing Response
VOV
VGATE
1.223V
1.203V
tOVPHL
tOVPLH
1V
1V
Figure 3. MIC2589/89R Overvoltage Response
Micrel
M9999-031504
8
March 2004
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