ISL6174 Datasheet, PDF (2/16 Pages) Intersil Corporation – Dual Low Voltage Circuit Breaker

Block Diagram
Vin
Io
Iset Rset
Rsns
ISL6174
Q
LOAD
Vo
Iref
OCREF
Rref
Current
Limit
Amplifier
10V
24µA
Soft Start
-
Amplifier
CPVDD
+
42µA
-
10µA
SS1
13kK
+
-
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)
C_TT_C1_B1
t_CCtB1
Rs1
UV1
Rs2
POR and
Bandgap
633mV
1.178V
ISL6173
FIGURE 2. ISL6174 - INTERNAL BLOCK-DIAGRAM OF THE IC - CHANNEL ONE ONLY
2
FN6830.0
December 19, 2008