ISL6173 Datasheet, PDF (2/20 Pages) Intersil Corporation – Dual Low Voltage Hot Swap Controller

Block Diagram
Vin
Io
Iset Rset
Rsns
ISL6173
Q
LOAD
Vo
Iref
OCREF
Rref
Current
Limit
Amplifier
10V
24µA
Soft Start
-
Amplifier
CPVDD
+
42µA
3K
-
10µA
SS1
+
-
Css
1.178V
Current
Mirror
+ _WOC
Comparator
OC Timer
+
&
Logic
CPVDD
Iref
- _OC
4
Comparator
10µA
FLT1
PG1
EN1
RTR/LTCH
BIAS
CPQ+
Cp
CPQ-
CPVDD
Cv
BIAS
10K
BIAS
10K
X2
Charge
Pump
+
Timeout ^-
Comparator
-
UV
+
Comparator
1.178V
633mV
X2
Charge
Pump
10V(out)
CT1
Ct
Rs1
UV1
Rs2
POR and
Bandgap
633mV
1.178V
ISL6173
FIGURE 2. ISL6173 - INTERNAL BLOCK-DIAGRAM OF THE IC - CHANNEL ONE ONLY
2
FN9186.2
February 15, 2005