ISL6173_06 Datasheet, PDF (12/20 Pages) Intersil Corporation – Dual Low Voltage Hot Swap Controller

IC Operation State Diagram
ISL6173
No
Pow er
Apply Pow er
Bias>1V
PG
&
FLT
Outputs
Valid
Bias>2V
FLT
Cleared
EN De-asserted
Gate
Pulldow n
Io>>ICR
(WOC)
Output
Voltage
Available
Io>ICR
Vuv<633mV Vuv>645mV
PG
Asserted
EN Asserted
Soft Start
(Tss)
Run
OC Timer
(Toc)
Io>ICR
Current
Limit
Mode
Io>=Icr
AND
t>Toc
Count 64
Pulses
&
Reset
RTR/LTCH = L
FLT
Asserted
Reset &
Latch
Off
State
RTR/LTCH = H
FIGURE 16.
12
FN9186.3
January 3, 2006